The Cat® 988 GC Wheel Loader helps you move more material at a low cost per hour for a fast return on your investment. This machine offers significant fuel savings and up to 10% lower owning and operating cost than the 988K.
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Engine
- Engine Power - ISO 14396: 2002
- 449 hp
- Engine Model
- Cat® C15
- Rated Speed
- 2,000 rpm
- Peak Power Speed
- 1,600 rpm
- Gross Power - SAE J1995:2014
- 456 hp
- Net Power - SAE J1349:2011
- 373 hp
- Bore
- 5.4 in
- Stroke
- 6.75 in
- Displacement
- 927 in³
- Peak Torque - 1,200 rpm - SAE J1995
- 1,778 ft·lbf
- Torque Rise
- 16%
- Note (1)
- Two engine emission options are available: 1. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan emission standards. 2. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
- Note (2)
- Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake system, exhaust system, and alternator.
Operating Specifications
- Operating Weight
- 112,426 lb
- Bucket Capacity Range
- 6.4-7.6 m3 (8.3-10 yd3)
- Rated Payload - Quarry Face
- 12.5 ton (US)
- Cat Truck Match - High Lift
- 772/773/775
Transmission
- Transmission Type
- Cat planetary power shift
- Forward - 1
- 5 mile/h
- Forward - 2
- 8 mile/h
- Reverse - 1
- 5 mile/h
- Reverse - 2
- 8 mile/h
- Direct Drive - Forward 1
- Lock-up disabled
- Direct Drive - Forward 2
- 8 mile/h
- Direct Drive - Forward 3
- 14 mile/h
- Direct Drive - Forward 4
- 24 mile/h
- Direct Drive - Reverse 1
- Lock-up disabled
- Direct Drive - Reverse 2
- 9 mile/h
- Direct Drive - Reverse 3
- 16 mile/h
- Direct Drive - Reverse 4
- 25.4 mile/h
- Note
- Travel speeds based on 35/65-R33 tires.
Hydraulic System - Lift/Tilt
- Lift/Tilt System - Circuit
- EH - Load Sense
- Lift/Tilt System - Pump
- Variable displacement piston
- Maximum Flow at 2,165 rpm
- 159 gal/min
- Relief Valve Setting - Lift/Tilt
- 4,598 psi
- Cylinders, Double Acting - Lift, Bore and Stroke
- 190 mm x 1,216 mm (7.5 in x 48 in)
- Cylinders, Double Acting - Tilt, Bore and Stroke
- 170 mm x 722 mm (6.7 in x 28.4 in)
- Pilot System
- Variable displacement piston
Hydraulic Cycle Times
- Rack Back
- 3.8 s
- Raise
- 7.5 s
- Dump
- 3 s
- Lower Float Down
- 4.6 s
- Total Hydraulic Cycle Time - Empty Bucket
- 18.9 s
Hydraulic System - Steering
- Steering System - Circuit
- Pilot, load sensing
- Steering System - Pump
- Piston, variable displacement
- Maximum Flow
- 52 gal (US)
- Relief Valve Setting - Steering
- 4,000 psi
- Total Steering Angle
- 70°
- Steering Cycle Times - High Idle
- 3 s
- Steering Cycle Times - Low Idle
- 5.2 s
Air Conditioning System
- Air Conditioning
- The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1,234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1,430), the system co
Axles
- Front
- Fixed
- Rear
- Trunnion
- Oscillation Angle
- +/-12.5°
Brakes
- Brakes
- ISO 3,450:2,011
Operator's Cab
- ROPS/FOPS
- ROPS/FOPS meet ISO 3,471:2,008 and ISO 3,449:2,005 Level II standards
Sound Performance - Tier 4 Final / Stage V
- Operator Sound Pressure Level (ISO 6396:2008)
- 73 dB(A)
- Machine Sound Power Level (ISO 6395:2008)
- 113 dB(A)
- Operator Sound Pressure Level (ISO 6396:2008)*
- 72 dB(A)
- Machine Sound Power Level (ISO 6395:2008)**
- 110 dB(A)
- Note (1)
- * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.”
- Note (2)
- ** European Union Directive “2,000/14/EC” as amended by “2,005/88/EC” and UK Noise Regulation 2,001 No. 1,701.
- Note (3)
- The machine sound power level was measured according to ISO 6,395:2,008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
- Note (4)
- The operator sound pressure level was measured according to ISO 6,396:2,008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
- Note (5)
- 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 3 / Stage IIIA
- Operator Sound Pressure Level (ISO 6396:2008)
- 74 dB(A)
- Machine Sound Power Level (ISO 6395:2008)
- 113 dB(A)
- Operator Sound Pressure Level (ISO 6396:2008)*
- 73 dB(A)
- Machine Sound Power Level (ISO 6395:2008)**
- 110 dB(A)
- Note (1)
- * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.”
- Note (2)
- ** European Union Directive “2,000/14/EC” as amended by “2,005/88/EC” and UK Noise Regulation 2,001 No. 1,701.
- Note (3)
- The machine sound power level was measured according to ISO 6,395:2,008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
- Note (4)
- The operator sound pressure level was measured according to ISO 6,396:2,008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
- Note (5)
- 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.
Service Refill Capacities
- Fuel Tank
- 141 gal (US)
- Cooling System
- 27 gal (US)
- Engine Crankcase
- 9 gal (US)
- Diesel Exhaust Fluid Tank
- 5.5 gal (US)
- Transmission
- 20 gal (US)
- Differential - Final Drives - Front
- 49 gal (US)
- Differential - Final Drives - Rear
- 45 gal (US)
- Note
- Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester) *** 10
Dimensions (Approximate) - High Lift
- Ground to Top of ROPS
- 13.5 ft
- Ground to Top of Exhaust Stacks
- 13.3 ft
- Ground to Top of Hood
- 10.7 ft
- Rear Axle - Centerline to Bumper
- 10.3 ft
- Front Axle Centerline to Bucket Tip
- 15.7 ft
- Wheel Base
- 12.5 ft
- Maximum Overall Length
- 39.5 ft
- Ground to Lower Hitch Clearance
- 1.5 ft
- Clearance at Maximum Lift
- 12 ft
- B-Pin Height - Maximum Lift
- 18.7 ft
- Maximum Overall Height - Bucket Raised
- 25 ft
- Reach - Maximum Lift
- 7.7 ft
- Note
- Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires.
Specifications
Engine
- Engine Power - ISO 14396: 2002
- 449 hp
- Engine Model
- Cat® C15
- Rated Speed
- 2,000 rpm
- Peak Power Speed
- 1,600 rpm
- Gross Power - SAE J1995:2014
- 456 hp
- Net Power - SAE J1349:2011
- 373 hp
- Bore
- 5.4 in
- Stroke
- 6.75 in
- Displacement
- 927 in³
- Peak Torque - 1,200 rpm - SAE J1995
- 1,778 ft·lbf
- Torque Rise
- 16%
- Note (1)
- Two engine emission options are available: 1. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan emission standards. 2. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
- Note (2)
- Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake system, exhaust system, and alternator.
Operating Specifications
- Operating Weight
- 112,426 lb
- Bucket Capacity Range
- 6.4-7.6 m3 (8.3-10 yd3)
- Rated Payload - Quarry Face
- 12.5 ton (US)
- Cat Truck Match - High Lift
- 772/773/775
Transmission
- Transmission Type
- Cat planetary power shift
- Forward - 1
- 5 mile/h
- Forward - 2
- 8 mile/h
- Reverse - 1
- 5 mile/h
- Reverse - 2
- 8 mile/h
- Direct Drive - Forward 1
- Lock-up disabled
- Direct Drive - Forward 2
- 8 mile/h
- Direct Drive - Forward 3
- 14 mile/h
- Direct Drive - Forward 4
- 24 mile/h
- Direct Drive - Reverse 1
- Lock-up disabled
- Direct Drive - Reverse 2
- 9 mile/h
- Direct Drive - Reverse 3
- 16 mile/h
- Direct Drive - Reverse 4
- 25.4 mile/h
- Note
- Travel speeds based on 35/65-R33 tires.
Hydraulic System - Lift/Tilt
- Lift/Tilt System - Circuit
- EH - Load Sense
- Lift/Tilt System - Pump
- Variable displacement piston
- Maximum Flow at 2,165 rpm
- 159 gal/min
- Relief Valve Setting - Lift/Tilt
- 4,598 psi
- Cylinders, Double Acting - Lift, Bore and Stroke
- 190 mm x 1,216 mm (7.5 in x 48 in)
- Cylinders, Double Acting - Tilt, Bore and Stroke
- 170 mm x 722 mm (6.7 in x 28.4 in)
- Pilot System
- Variable displacement piston
Hydraulic Cycle Times
- Rack Back
- 3.8 s
- Raise
- 7.5 s
- Dump
- 3 s
- Lower Float Down
- 4.6 s
- Total Hydraulic Cycle Time - Empty Bucket
- 18.9 s
Hydraulic System - Steering
- Steering System - Circuit
- Pilot, load sensing
- Steering System - Pump
- Piston, variable displacement
- Maximum Flow
- 52 gal (US)
- Relief Valve Setting - Steering
- 4,000 psi
- Total Steering Angle
- 70°
- Steering Cycle Times - High Idle
- 3 s
- Steering Cycle Times - Low Idle
- 5.2 s
Air Conditioning System
- Air Conditioning
- The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1,234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1,430), the system co
Axles
- Front
- Fixed
- Rear
- Trunnion
- Oscillation Angle
- +/-12.5°
Brakes
- Brakes
- ISO 3,450:2,011
Operator's Cab
- ROPS/FOPS
- ROPS/FOPS meet ISO 3,471:2,008 and ISO 3,449:2,005 Level II standards
Sound Performance - Tier 4 Final / Stage V
- Operator Sound Pressure Level (ISO 6396:2008)
- 73 dB(A)
- Machine Sound Power Level (ISO 6395:2008)
- 113 dB(A)
- Operator Sound Pressure Level (ISO 6396:2008)*
- 72 dB(A)
- Machine Sound Power Level (ISO 6395:2008)**
- 110 dB(A)
- Note (1)
- * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.”
- Note (2)
- ** European Union Directive “2,000/14/EC” as amended by “2,005/88/EC” and UK Noise Regulation 2,001 No. 1,701.
- Note (3)
- The machine sound power level was measured according to ISO 6,395:2,008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
- Note (4)
- The operator sound pressure level was measured according to ISO 6,396:2,008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
- Note (5)
- 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 3 / Stage IIIA
- Operator Sound Pressure Level (ISO 6396:2008)
- 74 dB(A)
- Machine Sound Power Level (ISO 6395:2008)
- 113 dB(A)
- Operator Sound Pressure Level (ISO 6396:2008)*
- 73 dB(A)
- Machine Sound Power Level (ISO 6395:2008)**
- 110 dB(A)
- Note (1)
- * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.”
- Note (2)
- ** European Union Directive “2,000/14/EC” as amended by “2,005/88/EC” and UK Noise Regulation 2,001 No. 1,701.
- Note (3)
- The machine sound power level was measured according to ISO 6,395:2,008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
- Note (4)
- The operator sound pressure level was measured according to ISO 6,396:2,008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
- Note (5)
- 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.
Service Refill Capacities
- Fuel Tank
- 141 gal (US)
- Cooling System
- 27 gal (US)
- Engine Crankcase
- 9 gal (US)
- Diesel Exhaust Fluid Tank
- 5.5 gal (US)
- Transmission
- 20 gal (US)
- Differential - Final Drives - Front
- 49 gal (US)
- Differential - Final Drives - Rear
- 45 gal (US)
- Note
- Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester) *** 10
Dimensions (Approximate) - High Lift
- Ground to Top of ROPS
- 13.5 ft
- Ground to Top of Exhaust Stacks
- 13.3 ft
- Ground to Top of Hood
- 10.7 ft
- Rear Axle - Centerline to Bumper
- 10.3 ft
- Front Axle Centerline to Bucket Tip
- 15.7 ft
- Wheel Base
- 12.5 ft
- Maximum Overall Length
- 39.5 ft
- Ground to Lower Hitch Clearance
- 1.5 ft
- Clearance at Maximum Lift
- 12 ft
- B-Pin Height - Maximum Lift
- 18.7 ft
- Maximum Overall Height - Bucket Raised
- 25 ft
- Reach - Maximum Lift
- 7.7 ft
- Note
- Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires.
Standard/Optional Features
Standard Equipment:
-
- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
-
- Electrical
-
- Alarm, back-up
- Alternator, single 145 amp
- Batteries, maintenance free
- Converter, 10/15 amp, 24V to 12V
- Lighting system (LED, work lights, access and service platform lighting)
- Starting and charging system, 24V
- Auxiliary jump start receptacle
-
- Operator Environment
-
- Cab precleaner
- Lights, LED
- AM/FM radio
- Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
- Air conditioner
- Cat Vision, rear vision camera system
- Cab, sound suppressed and pressurized, integrated rollover protective structure/falling objects protective structure (ROPS/FOPS) radio ready for entertainment, includes antenna, speakers and converter (12‑volt 5-amp) and power port
- Controls, lift and tilt function
- Heater, defroster
- Horn, electric
- Instrumentation, gauges
– Coolant temperature
– Engine hour meter
– Hydraulic oil temperature
– Powertrain oil temperature - Light, cab, dome
- Lunchbox, beverage holders
- CB radio-ready
- Mirrors, rearview (externally mounted)
- Seat, Cat Comfort Cloth, air suspension, six-way adjustable
- Seat belt minder
- Seat belt, retractable, 76 mm (3 in) wide
- Steering and Transmission Integrated Control (STIC™) system
- UV glass
- Transmission gear indicator
- Wet-Arm wipers/washers (front and rear)
– Intermittent front and rear wipers - Lights, directional
- Cat Production Measurement ready
-
- Powertrain
-
- Brakes, oil-cooled, multi-disc, service/secondary
- Case drain screens
- Electro hydraulic parking brake
- Engine, C15 MEUI™ diesel, turbocharged/aftercooled
- Ground level engine shutdown switch
- Turbine precleaner, engine air intake
- Starting aid, ether, automatic
- Throttle lock, electronic
- Manual switch and automatic fuel priming
- Torque converter, neutralizer
- Transmission, planetary power shift, 4F/4R electronic control
- Cat Integrated Powered Electronics
- Automatic retarding controls
- Crankcase guard
-
- Additional Equipment
-
- Automatic bucket lift kickout/positioner
- Base machine price includes a rim allowance
- Hydraulically driven demand fan
- Couplings, Cat O-ring face seals
- Doors, service access (locking)
- Ecology drains for engine, radiator, hydraulic tank
- Fuel tank, 535 L (141 gal)
- Hoses, Cat XT™
- Hydraulic, steering and brake filtration/screening system
- Cat Clean Emission Module
- Oil sampling valves
- Premixed 50 percent concentration of extended life coolant with freeze protection to –34° C (–29° F)
- Rear access to cab and service platform
- Steering, load sensing
- Toe kicks
- Vandalism protection caplocks
Optional Equipment:
-
- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
-
- Powertrain
-
- High ambient cooling – software
- Engine block heater 120V or 240V
- Antifreeze -50°C (-58°F)
-
- Operator Environment
-
- Cat Production Measurement
- Cat Detect, object detection system
-
- Additional Equipment
-
- Front and rear roading fenders
- Cold Weather Starting
- Tire Pressure Monitoring System