With our huge inventory of new, used and rental equipment, WesTrac has the right machine for the job.
With our huge inventory of new, used and rental equipment, WesTrac has the right machine for the job.
Keep your operation working around the clock by making WesTrac your partner in parts. With over 75,000 product lines stocked in our warehouses, ready-to-go, we won't let you down.
The Cat® 990 Wheel Loader helps you move more material in less time, at a low cost per ton, for a fast return on your investment. This machine offers significant fuel savings, low maintenance costs, and great productivity and durability to acheive multiple life cycles.
The Cat® 990 Wheel Loader helps you move more material in less time, at a low cost per ton, for a fast return on your investment. This machine offers significant fuel savings, low maintenance costs, and great productivity and durability to acheive multiple life cycles.
Engine Power - ISO 14396:2002 | 586 kW | 786 hp |
Engine Model | Cat® C27 | Cat® C27 |
Emissions | Option 1 - U.S. EPA Tier 4 Final/EU Stage V | Option 1 - U.S. EPA Tier 4 Final/EU Stage V |
Rated Speed | 1800 r/min | 1800 r/min |
Gross Power - SAE J1995:2014 | 597 kW | 801 hp |
Net Power - SAE J1349:2011 - Standard Ambient | 546 kW | 732 hp |
Net Power - SAE J1349:2011 - High Ambient | 508 kW | 681 hp |
Emissions | Option 2 - Emits equivalent to U.S. EPA Tier 2 | Option 2 - Emits equivalent to U.S. EPA Tier 2 |
Rated Speed | 1800 r/min | 1800 r/min |
Engine Power - ISO 14396:2002 | 561 kW | 752 hp |
Gross Power - SAE J1995:2014 | 571 kW | 766 hp |
Net Power - SAE J1349:2011 - Standard Ambient | 521 kW | 699 hp |
Net Power - SAE J1349:2011 - High Ambient | 483 kW | 648 hp |
Bore | 137.2 mm | 5.4 in |
Stroke | 152.4 mm | 6 in |
Displacement | 27.03 l | 1649.5 in³ |
Peak Torque - 1,200 rpm | 3557 N·m | 2624 lb/ft |
Torque Rise | 18 % | 18 % |
Note | Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake sytstem, exhaust system, and alternator. | Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake sytstem, exhaust system, and alternator. |
Transmission
Transmission Type | Cat planetary power shift | Cat planetary power shift |
Forward - 1 | 7.4 km/h | 4.6 mile/h |
Forward - 2 | 13.2 km/h | 8.2 mile/h |
Forward - 3 | 23.3 km/h | 14.5 mile/h |
Reverse - 1 | 8.15 km/h | 5.1 mile/h |
Reverse - 2 | 14.6 km/h | 9.1 mile/h |
Reverse - 3 | 25.7 km/h | 16 mile/h |
Direct Drive - Forward 1 | Lock-up disabled | Lock-up disabled |
Direct Drive - Forward 2 | 13.2 km/h | 8.2 mile/h |
Direct Drive - Forward 3 | 23.3 km/h | 14.5 mile/h |
Direct Drive - Reverse 1 | 8.15 km/h | 5.1 mile/h |
Direct Drive - Reverse 2 | 14.6 km/h | 9.1 mile/h |
Direct Drive - Reverse 3 | 25.7 km/h | 16 mile/h |
Note | Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. | Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. |
Operating Specifications
Operating Weight - Standard | 80974 kg | 178517 lb |
Bucket Capacity Range | 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³) | 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³) |
Rated Payload - Standard | 15.9 t | 17.5 ton (US) |
Rated Payload - High Lift | 15.9 t | 17.5 ton (US) |
Cat Truck Match - Standard | 773-775 | 773-775 |
Cat Truck Match - High Lift | 775-777 | 775-777 |
Hydraulic System - Lift/Tilt
Lift/Tilt System - Circuit | Positive flow control | Positive flow control |
Lift/Tilt System | Variable displacement piston | Variable displacement piston |
Maximum Flow at 1,800 rpm | 910 l/min | 240 gal/min |
Relief Valve Setting - Lift/Tilt | 33000 kPa | 4786 psi |
Cylinders, Double Acting - Lift, Bore and Stroke | 235 mm × 1287 mm (9.3 in × 50.7 in) | 235 mm × 1287 mm (9.3 in × 50.7 in) |
Cylinders, Double Acting - Tilt, Bore and Stroke | 292.1 mm × 820 mm (11.5 in × 32.3 in) | 292.1 mm × 820 mm (11.5 in × 32.3 in) |
Pilot System | Open loop and pressure reducing | Open loop and pressure reducing |
Pilot Relief Setting | 3500 kPa | 507 psi |
Hydraulic Cycle Times
Rack Back | 4.3 s | 4.3 s |
Raise | 8.6 s | 8.6 s |
Dump | 2.9 s | 2.9 s |
Lower | 3.7 s | 3.7 s |
Lower Float Down | 3.7 s | 3.7 s |
Total Hydraulic Cycle Time - Empty Bucket | 13.8 s | 13.8 s |
Hydraulic System - Steering
Steering System - Circuit | Pilot, load sensing | Pilot, load sensing |
Steering System - Pump | Piston, variable displacement | Piston, variable displacement |
Maximum Flow at 1,400 rpm | 364 l/min | 96.2 gal/min |
Relief Valve Setting - Steering | 34500 kPa | 5004 psi |
Total Steering Angle | 70° | 70° |
Air Conditioning System
Air Conditioning | • The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. • If equipped with R134a (Global Warming Potential = 1430), the system contains 2.7 kg (5.9 lb) of refrigerant which has a CO2 equivalent of 3.861 metric tonnes (4.256 tons). | • The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. • If equipped with R134a (Global Warming Potential = 1430), the system contains 2.7 kg (5.9 lb) of refrigerant which has a CO2 equivalent of 3.861 metric tonnes (4.256 tons). |
Axles
Front | Fixed | Fixed |
Rear | Trunnion | Trunnion |
Oscillation Angle | 8.5° | 8.5° |
Brakes
Brakes | ISO 3450: 2011 | ISO 3450: 2011 |
Service Refill Capacities
Fuel Tank | 1064 l | 281 gal (US) |
Cooling System | 208 l | 54.9 gal (US) |
Engine Crankcase | 75.7 l | 20 gal (US) |
Transmission | 110 l | 29.1 gal (US) |
Differential - Final Drives - Front | 271 l | 71.6 gal (US) |
Differential - Final Drives - Rear | 261 l | 68.9 gal (US) |
Hydraulic System Factory Fill | 795 l | 210 gal (US) |
Hydraulic Tank - Implement and Hydraulic Fan | 261 l | 68.9 gal (US) |
Hydraulic Tank - Steering and Braking | 132 l | 34.9 gal (US) |
Note | Cat U.S. EPA Tier 4 Final/EU Stage V diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: • 20% biodiesel FAME (fatty acid methyl ester)* • 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. – Cat DEO-ULS™ or oils that meet the Cat ECF-3, API CJ-4, API CK-4, and/or ACEA E9 specifications are required. – Diesel Exhaust Fluid (DEF) that meets all requirements defined in ISO 22241-1:2006. | Cat U.S. EPA Tier 4 Final/EU Stage V diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: • 20% biodiesel FAME (fatty acid methyl ester)* • 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. – Cat DEO-ULS™ or oils that meet the Cat ECF-3, API CJ-4, API CK-4, and/or ACEA E9 specifications are required. – Diesel Exhaust Fluid (DEF) that meets all requirements defined in ISO 22241-1:2006. |
Sound Performance - Tier 4 Final / Stage V
Operator Sound Pressure Level (ISO 6396:2008) | 72 dB(A) | 72 dB(A) |
Machine Sound Power Level (ISO 6395:2008) | 116 dB(A) | 116 dB(A) |
Operator Sound Pressure Level (ISO 6396:2008)* | 72 dB(A) | 72 dB(A) |
Machine Sound Power Level (ISO 6395:2008)* | 114 dB(A) | 114 dB(A) |
Note (1) | *Sound suppression equipped | *Sound suppression equipped |
Note (2) | The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. | The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. |
Note (3) | The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. | The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. |
Note (4) | Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment. | Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment. |
Sound Performance - Tier 2
Operator Sound Pressure Level (ISO 6396:2008) | 72 dB(A) | 72 dB(A) |
Machine Sound Power Level (ISO 6395:2008) | 116 dB(A) | 116 dB(A) |
Operator Sound Pressure Level (ISO 6396:2008)* | 72 dB(A) | 72 dB(A) |
Machine Sound Power Level (ISO 6395:2008)* | 114 dB(A) | 114 dB(A) |
Note (1) | *Sound suppression equipped | *Sound suppression equipped |
Note (2) | The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. | The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. |
Note (3) | The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. | The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. |
Note (4) | Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment. | Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment. |
Dimensions (Approximate) - Standard Lift Linkage
Ground to Top of ROPS | 5240 mm | 17.2 ft |
Ground to Top of Exhaust Stacks | 5049 mm | 16.6 ft |
Ground to Top of Hood | 3862 mm | 12.7 ft |
Ground to Bumper Clearance | 1079 mm | 3.5 ft |
Rear Axle - Centerline to Bumper | 3795 mm | 12.5 ft |
Front Axle Centerline to Bucket Tip | 4689 mm | 15.4 ft |
Wheel Base | 4600 mm | 15.1 ft |
Maximum Overall Length | 13084 mm | 42.9 ft |
Ground to Lower Hitch Clearance | 596 mm | 2.0 ft |
Ground to Center of Front Axle | 1290 mm | 4.2 ft |
Clearance at Maximum Lift | 4044 mm | 7.2 ft |
Rack Back Angle at Ground Level | 40.4° | 40.4° |
Rack Back Angle at Carry | 48.8° | 48.8° |
B-Pin Height - Maximum Lift | 6009 mm | 19.7 ft |
Maximum Overall Height - Bucket Raised | 8281 mm | 27.2 ft |
Rack Angle at Maximum Lift | 63.7° | 63.7° |
Dump Angle at Maximum Lift | 45° | 45° |
Reach - Maximum Lift | 2194 mm | 7.2 ft |
Note | Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires. | Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires. |
Dimensions (Approximate) - High Lift Linkage
Ground to Top of ROPS | 5240 mm | 17.2 ft |
Ground to Top of Exhaust Stacks | 5049 mm | 16.6 ft |
Ground to Top of Hood | 3862 mm | 12.7 ft |
Ground to Bumper Clearance | 1079 mm | 3.5 ft |
Rear Axle - Centerline to Bumper | 3795 mm | 12.5 ft |
Front Axle Centerline to Bucket Tip | 5425 mm | 17.8 ft |
Wheel Base | 4600 mm | 15.1 ft |
Maximum Overall Length | 13820 mm | 45.3 ft |
Ground to Lower Hitch Clearance | 596 mm | 2.0 ft |
Ground to Center of Front Axle | 1290 mm | 4.2 ft |
Clearance at Maximum Lift | 4521 mm | 14.8 ft |
Rack Back Angle at Ground Level | 39.9° | 39.9° |
Rack Back Angle at Carry | 49.3° | 49.3° |
B-Pin Height - Maximum Lift | 6470 mm | 21.2 ft |
Maximum Overall Height - Bucket Raised | 8742 mm | 28.7 ft |
Rack Angle at Maximum Lift | 60.6° | 60.6° |
Dump Angle at Maximum Lift | 51° | 51° |
Reach - Maximum Lift | 2583 mm | 8.5 ft |
Note | Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires. | Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires. |
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details. |
OPERATOR ENVIRONMENT
Air conditioner and heater with automatic temperature control |
Cab, sound-suppressed and pressurized, rollover protective structure/falling objects protective structure (ROPS/FOPS) |
Cat Vision, rear vision camera system |
12-volt power port |
Coat hook |
Cab precleaner, powered |
Electro-hydraulic tilt and lift controls (seat mounted) |
Flip-up armrest |
Heater and defroster |
CB radio ready |
Horn, electric |
Implement hydraulic lockout |
Instrumentation, gauges: – Engine coolant temperature – Fuel level – Ground speed – Gear – Hydraulic oil temperature – Speedometer/tachometer – Torque converter temperature |
Instrumentation, warning indicators: – Action alert system, three category – Automatic transmission model enable status – Brake malfunction – Bucket float status – Delayed engine shutdown status – Engine idle shutdown status – Engine malfunction – Fuel economy mode enable status – Hydraulic lockout – Lockup clutch enable status – Low fuel level – Parking brake status – Rimpull control enable status – Seatbelt warning – Secondary steering (if equipped) – Throttle lock status – Transmission gear |
Keypad, control with indicator lights: – Auto trans mode speed range – Auto/manual transmission mode – Fuel economy mode – Implement kickout – Lockup clutch – Reduced rimpull – Throttle lock |
Light, dome (cab) |
Lunchbox and beverage holders |
Mirrors, rearview (externally mounted) |
Premium seat with heated and actively cooled leather, adjustable lumbar support, air adjustable bolsters on the seat and backrest, seat cushion tilt adjustment, and adjustable-length seat cushion |
Seat belt, retractable, 76 mm (3 in) wide |
Steering and Transmission Integrated Control (STIC™) system with steering lock |
Tinted glass |
Trainer seat with lap belt |
Vital Information Management System (VIMS™) with graphical information display: external data port, customizable operator profiles, cycle timer, and integral Cat Production Measurement – Wet-arm wipers/washers (front, rear and corner) intermittent front wiper |
POWERTRAIN
Brakes, full hydraulic, enclosed, oil-disc |
Axle-shaft oil-disc service brake |
Electro hydraulic parking brake |
Case drain screens |
Cat clean emission module (CEM) - (Tier 4 only) |
Demand fan |
Engine Cat C27 |
Fuel priming pump (electric) |
Ground level shutdown switch |
Mufflers (under hood) (Tier 2 equivalent only) |
Precleaner, engine air intake |
Radiator, Aluminum Modular (AMR) |
Separated cooling system |
Starting aid, (ether) manual override |
Throttle Lock |
Torque Converter, Impeller Clutch (ICTC) with lock-up clutch (LUC), and rimpull control system |
Transmission, 534 mm (21 in) planetary power shift (electronic) (3F/3R) |
ELECTRICAL
Alarm, back-up |
Alternator, 150 amp |
Batteries, maintenance free (2 – 1,400 CCA) |
Converter, 10/15 amp, 24V to 12V |
Deutsch component connectors |
Electrical system, 24V |
Electronic transmission control |
Lighting system, halogen (front and rear) lighting, access stairway, engine compartment |
Starter, electric |
Auxiliary start receptacle |
OTHER
Automatic bucket lift kickout/positioner |
Axle temperature sensor |
Battery disconnect and jump start receptacle, bumper |
Coupling, Caterpillar O-ring face seals |
Economy mode with on demand throttle |
Emergency platform exit |
Engine, crankcase, 500 hour interval with CH4 |
Engine idle management features: – Auto idle kickdown – Delayed engine shutdown – Engine idle shutdown |
Fenders, steel (front) |
Guards, crankcase and powertrain |
Ground level lockable battery disconnect switch |
Grouped/labeled lube points |
Hitch, drawbar with pin |
Hoses, Cat XT™ |
Oil sampling valves |
Positive flow control hydraulic system |
Product Link™ |
Sight Gauges: hydraulic tanks, steering/fan and implement/brake, and transmission |
Stairway, left and right rear access |
Steering, load sensing |
Toe kicks |
Vandalism protection caplocks |
Venturi stack |
Premixed 50% concentration of extended life coolant with freeze protection to –34° C (–29° F) |
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details. |
The Cat® 990 Wheel Loader helps you move more material in less time, at a low cost per ton, for a fast return on your investment. This machine offers significant fuel savings, low maintenance costs, and great productivity and durability to acheive multiple life cycles.
Engine Power - ISO 14396:2002 | 586 kW | 786 hp |
Engine Model | Cat® C27 | Cat® C27 |
Emissions | Option 1 - U.S. EPA Tier 4 Final/EU Stage V | Option 1 - U.S. EPA Tier 4 Final/EU Stage V |
Rated Speed | 1800 r/min | 1800 r/min |
Gross Power - SAE J1995:2014 | 597 kW | 801 hp |
Net Power - SAE J1349:2011 - Standard Ambient | 546 kW | 732 hp |
Net Power - SAE J1349:2011 - High Ambient | 508 kW | 681 hp |
Emissions | Option 2 - Emits equivalent to U.S. EPA Tier 2 | Option 2 - Emits equivalent to U.S. EPA Tier 2 |
Rated Speed | 1800 r/min | 1800 r/min |
Engine Power - ISO 14396:2002 | 561 kW | 752 hp |
Gross Power - SAE J1995:2014 | 571 kW | 766 hp |
Net Power - SAE J1349:2011 - Standard Ambient | 521 kW | 699 hp |
Net Power - SAE J1349:2011 - High Ambient | 483 kW | 648 hp |
Bore | 137.2 mm | 5.4 in |
Stroke | 152.4 mm | 6 in |
Displacement | 27.03 l | 1649.5 in³ |
Peak Torque - 1,200 rpm | 3557 N·m | 2624 lb/ft |
Torque Rise | 18 % | 18 % |
Note | Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake sytstem, exhaust system, and alternator. | Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake sytstem, exhaust system, and alternator. |
Transmission
Transmission Type | Cat planetary power shift | Cat planetary power shift |
Forward - 1 | 7.4 km/h | 4.6 mile/h |
Forward - 2 | 13.2 km/h | 8.2 mile/h |
Forward - 3 | 23.3 km/h | 14.5 mile/h |
Reverse - 1 | 8.15 km/h | 5.1 mile/h |
Reverse - 2 | 14.6 km/h | 9.1 mile/h |
Reverse - 3 | 25.7 km/h | 16 mile/h |
Direct Drive - Forward 1 | Lock-up disabled | Lock-up disabled |
Direct Drive - Forward 2 | 13.2 km/h | 8.2 mile/h |
Direct Drive - Forward 3 | 23.3 km/h | 14.5 mile/h |
Direct Drive - Reverse 1 | 8.15 km/h | 5.1 mile/h |
Direct Drive - Reverse 2 | 14.6 km/h | 9.1 mile/h |
Direct Drive - Reverse 3 | 25.7 km/h | 16 mile/h |
Note | Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. | Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. |
Operating Specifications
Operating Weight - Standard | 80974 kg | 178517 lb |
Bucket Capacity Range | 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³) | 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³) |
Rated Payload - Standard | 15.9 t | 17.5 ton (US) |
Rated Payload - High Lift | 15.9 t | 17.5 ton (US) |
Cat Truck Match - Standard | 773-775 | 773-775 |
Cat Truck Match - High Lift | 775-777 | 775-777 |
Hydraulic System - Lift/Tilt
Lift/Tilt System - Circuit | Positive flow control | Positive flow control |
Lift/Tilt System | Variable displacement piston | Variable displacement piston |
Maximum Flow at 1,800 rpm | 910 l/min | 240 gal/min |
Relief Valve Setting - Lift/Tilt | 33000 kPa | 4786 psi |
Cylinders, Double Acting - Lift, Bore and Stroke | 235 mm × 1287 mm (9.3 in × 50.7 in) | 235 mm × 1287 mm (9.3 in × 50.7 in) |
Cylinders, Double Acting - Tilt, Bore and Stroke | 292.1 mm × 820 mm (11.5 in × 32.3 in) | 292.1 mm × 820 mm (11.5 in × 32.3 in) |
Pilot System | Open loop and pressure reducing | Open loop and pressure reducing |
Pilot Relief Setting | 3500 kPa | 507 psi |
Hydraulic Cycle Times
Rack Back | 4.3 s | 4.3 s |
Raise | 8.6 s | 8.6 s |
Dump | 2.9 s | 2.9 s |
Lower | 3.7 s | 3.7 s |
Lower Float Down | 3.7 s | 3.7 s |
Total Hydraulic Cycle Time - Empty Bucket | 13.8 s | 13.8 s |
Hydraulic System - Steering
Steering System - Circuit | Pilot, load sensing | Pilot, load sensing |
Steering System - Pump | Piston, variable displacement | Piston, variable displacement |
Maximum Flow at 1,400 rpm | 364 l/min | 96.2 gal/min |
Relief Valve Setting - Steering | 34500 kPa | 5004 psi |
Total Steering Angle | 70° | 70° |
Air Conditioning System
Air Conditioning | • The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. • If equipped with R134a (Global Warming Potential = 1430), the system contains 2.7 kg (5.9 lb) of refrigerant which has a CO2 equivalent of 3.861 metric tonnes (4.256 tons). | • The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. • If equipped with R134a (Global Warming Potential = 1430), the system contains 2.7 kg (5.9 lb) of refrigerant which has a CO2 equivalent of 3.861 metric tonnes (4.256 tons). |
Axles
Front | Fixed | Fixed |
Rear | Trunnion | Trunnion |
Oscillation Angle | 8.5° | 8.5° |
Brakes
Brakes | ISO 3450: 2011 | ISO 3450: 2011 |
Service Refill Capacities
Fuel Tank | 1064 l | 281 gal (US) |
Cooling System | 208 l | 54.9 gal (US) |
Engine Crankcase | 75.7 l | 20 gal (US) |
Transmission | 110 l | 29.1 gal (US) |
Differential - Final Drives - Front | 271 l | 71.6 gal (US) |
Differential - Final Drives - Rear | 261 l | 68.9 gal (US) |
Hydraulic System Factory Fill | 795 l | 210 gal (US) |
Hydraulic Tank - Implement and Hydraulic Fan | 261 l | 68.9 gal (US) |
Hydraulic Tank - Steering and Braking | 132 l | 34.9 gal (US) |
Note | Cat U.S. EPA Tier 4 Final/EU Stage V diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: • 20% biodiesel FAME (fatty acid methyl ester)* • 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. – Cat DEO-ULS™ or oils that meet the Cat ECF-3, API CJ-4, API CK-4, and/or ACEA E9 specifications are required. – Diesel Exhaust Fluid (DEF) that meets all requirements defined in ISO 22241-1:2006. | Cat U.S. EPA Tier 4 Final/EU Stage V diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: • 20% biodiesel FAME (fatty acid methyl ester)* • 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. – Cat DEO-ULS™ or oils that meet the Cat ECF-3, API CJ-4, API CK-4, and/or ACEA E9 specifications are required. – Diesel Exhaust Fluid (DEF) that meets all requirements defined in ISO 22241-1:2006. |
Sound Performance - Tier 4 Final / Stage V
Operator Sound Pressure Level (ISO 6396:2008) | 72 dB(A) | 72 dB(A) |
Machine Sound Power Level (ISO 6395:2008) | 116 dB(A) | 116 dB(A) |
Operator Sound Pressure Level (ISO 6396:2008)* | 72 dB(A) | 72 dB(A) |
Machine Sound Power Level (ISO 6395:2008)* | 114 dB(A) | 114 dB(A) |
Note (1) | *Sound suppression equipped | *Sound suppression equipped |
Note (2) | The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. | The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. |
Note (3) | The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. | The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. |
Note (4) | Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment. | Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment. |
Sound Performance - Tier 2
Operator Sound Pressure Level (ISO 6396:2008) | 72 dB(A) | 72 dB(A) |
Machine Sound Power Level (ISO 6395:2008) | 116 dB(A) | 116 dB(A) |
Operator Sound Pressure Level (ISO 6396:2008)* | 72 dB(A) | 72 dB(A) |
Machine Sound Power Level (ISO 6395:2008)* | 114 dB(A) | 114 dB(A) |
Note (1) | *Sound suppression equipped | *Sound suppression equipped |
Note (2) | The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. | The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. |
Note (3) | The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. | The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. |
Note (4) | Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment. | Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment. |
Dimensions (Approximate) - Standard Lift Linkage
Ground to Top of ROPS | 5240 mm | 17.2 ft |
Ground to Top of Exhaust Stacks | 5049 mm | 16.6 ft |
Ground to Top of Hood | 3862 mm | 12.7 ft |
Ground to Bumper Clearance | 1079 mm | 3.5 ft |
Rear Axle - Centerline to Bumper | 3795 mm | 12.5 ft |
Front Axle Centerline to Bucket Tip | 4689 mm | 15.4 ft |
Wheel Base | 4600 mm | 15.1 ft |
Maximum Overall Length | 13084 mm | 42.9 ft |
Ground to Lower Hitch Clearance | 596 mm | 2.0 ft |
Ground to Center of Front Axle | 1290 mm | 4.2 ft |
Clearance at Maximum Lift | 4044 mm | 7.2 ft |
Rack Back Angle at Ground Level | 40.4° | 40.4° |
Rack Back Angle at Carry | 48.8° | 48.8° |
B-Pin Height - Maximum Lift | 6009 mm | 19.7 ft |
Maximum Overall Height - Bucket Raised | 8281 mm | 27.2 ft |
Rack Angle at Maximum Lift | 63.7° | 63.7° |
Dump Angle at Maximum Lift | 45° | 45° |
Reach - Maximum Lift | 2194 mm | 7.2 ft |
Note | Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires. | Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires. |
Dimensions (Approximate) - High Lift Linkage
Ground to Top of ROPS | 5240 mm | 17.2 ft |
Ground to Top of Exhaust Stacks | 5049 mm | 16.6 ft |
Ground to Top of Hood | 3862 mm | 12.7 ft |
Ground to Bumper Clearance | 1079 mm | 3.5 ft |
Rear Axle - Centerline to Bumper | 3795 mm | 12.5 ft |
Front Axle Centerline to Bucket Tip | 5425 mm | 17.8 ft |
Wheel Base | 4600 mm | 15.1 ft |
Maximum Overall Length | 13820 mm | 45.3 ft |
Ground to Lower Hitch Clearance | 596 mm | 2.0 ft |
Ground to Center of Front Axle | 1290 mm | 4.2 ft |
Clearance at Maximum Lift | 4521 mm | 14.8 ft |
Rack Back Angle at Ground Level | 39.9° | 39.9° |
Rack Back Angle at Carry | 49.3° | 49.3° |
B-Pin Height - Maximum Lift | 6470 mm | 21.2 ft |
Maximum Overall Height - Bucket Raised | 8742 mm | 28.7 ft |
Rack Angle at Maximum Lift | 60.6° | 60.6° |
Dump Angle at Maximum Lift | 51° | 51° |
Reach - Maximum Lift | 2583 mm | 8.5 ft |
Note | Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires. | Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires. |
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details. |
OPERATOR ENVIRONMENT
Air conditioner and heater with automatic temperature control |
Cab, sound-suppressed and pressurized, rollover protective structure/falling objects protective structure (ROPS/FOPS) |
Cat Vision, rear vision camera system |
12-volt power port |
Coat hook |
Cab precleaner, powered |
Electro-hydraulic tilt and lift controls (seat mounted) |
Flip-up armrest |
Heater and defroster |
CB radio ready |
Horn, electric |
Implement hydraulic lockout |
Instrumentation, gauges: – Engine coolant temperature – Fuel level – Ground speed – Gear – Hydraulic oil temperature – Speedometer/tachometer – Torque converter temperature |
Instrumentation, warning indicators: – Action alert system, three category – Automatic transmission model enable status – Brake malfunction – Bucket float status – Delayed engine shutdown status – Engine idle shutdown status – Engine malfunction – Fuel economy mode enable status – Hydraulic lockout – Lockup clutch enable status – Low fuel level – Parking brake status – Rimpull control enable status – Seatbelt warning – Secondary steering (if equipped) – Throttle lock status – Transmission gear |
Keypad, control with indicator lights: – Auto trans mode speed range – Auto/manual transmission mode – Fuel economy mode – Implement kickout – Lockup clutch – Reduced rimpull – Throttle lock |
Light, dome (cab) |
Lunchbox and beverage holders |
Mirrors, rearview (externally mounted) |
Premium seat with heated and actively cooled leather, adjustable lumbar support, air adjustable bolsters on the seat and backrest, seat cushion tilt adjustment, and adjustable-length seat cushion |
Seat belt, retractable, 76 mm (3 in) wide |
Steering and Transmission Integrated Control (STIC™) system with steering lock |
Tinted glass |
Trainer seat with lap belt |
Vital Information Management System (VIMS™) with graphical information display: external data port, customizable operator profiles, cycle timer, and integral Cat Production Measurement – Wet-arm wipers/washers (front, rear and corner) intermittent front wiper |
POWERTRAIN
Brakes, full hydraulic, enclosed, oil-disc |
Axle-shaft oil-disc service brake |
Electro hydraulic parking brake |
Case drain screens |
Cat clean emission module (CEM) - (Tier 4 only) |
Demand fan |
Engine Cat C27 |
Fuel priming pump (electric) |
Ground level shutdown switch |
Mufflers (under hood) (Tier 2 equivalent only) |
Precleaner, engine air intake |
Radiator, Aluminum Modular (AMR) |
Separated cooling system |
Starting aid, (ether) manual override |
Throttle Lock |
Torque Converter, Impeller Clutch (ICTC) with lock-up clutch (LUC), and rimpull control system |
Transmission, 534 mm (21 in) planetary power shift (electronic) (3F/3R) |
ELECTRICAL
Alarm, back-up |
Alternator, 150 amp |
Batteries, maintenance free (2 – 1,400 CCA) |
Converter, 10/15 amp, 24V to 12V |
Deutsch component connectors |
Electrical system, 24V |
Electronic transmission control |
Lighting system, halogen (front and rear) lighting, access stairway, engine compartment |
Starter, electric |
Auxiliary start receptacle |
OTHER
Automatic bucket lift kickout/positioner |
Axle temperature sensor |
Battery disconnect and jump start receptacle, bumper |
Coupling, Caterpillar O-ring face seals |
Economy mode with on demand throttle |
Emergency platform exit |
Engine, crankcase, 500 hour interval with CH4 |
Engine idle management features: – Auto idle kickdown – Delayed engine shutdown – Engine idle shutdown |
Fenders, steel (front) |
Guards, crankcase and powertrain |
Ground level lockable battery disconnect switch |
Grouped/labeled lube points |
Hitch, drawbar with pin |
Hoses, Cat XT™ |
Oil sampling valves |
Positive flow control hydraulic system |
Product Link™ |
Sight Gauges: hydraulic tanks, steering/fan and implement/brake, and transmission |
Stairway, left and right rear access |
Steering, load sensing |
Toe kicks |
Vandalism protection caplocks |
Venturi stack |
Premixed 50% concentration of extended life coolant with freeze protection to –34° C (–29° F) |
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details. |
The electric-drive Cat 988 XE emits up to 37% less CO2 than the previous Cat 988K. Caterpillar has a goal of making 100% of new products more sustainable than the previous generations by 2030. Watch the first 988 XE test drive
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