Products

Equipment

Wheel Loaders

Large Wheel Loaders

988 GC

Large Wheel Loaders

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.

Engine Model

Cat® C15

Rated Speed

2000 rpm

Peak Power Speed

1600 rpm

Gross Power - SAE J1995:2014

456 hp/340 kW

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Key Features

PROVEN RELIABILITY

LONG TERM VALUE AND DURABILITY

ACHIEVE GREATER PRODUCTIVITY

POWERFUL EFFICIENCY

PRODUCTIVITY WITH TECHNOLOGY

SAFETY FIRST

SAVE ON SERVICE AND MAINTENANCE

OPERATOR COMFORT AND CONTROL

SUSTAINABILITY

Specifications

Metric | Imperial

Engine

Engine Model

Cat® C15

Rated Speed

2000 rpm

Peak Power Speed

1600 rpm

Gross Power - SAE J1995:2014

456 hp 340 kW

Net Power - SAE J1349:2011

448 hp 334 kW

Bore

5.4 in 137 mm

Stroke

6.75 in 171.5 mm

Displacement

927 in³ 15.2 l

Peak Torque (1,200 rpm) - SAE J1995:2014

1778 lbf·ft 2411 N·m

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.

Note (3)

Net power at the flywheel when the fan is at maximum speed is 304 kW / 408 hp per SAE reference conditions.

Operating Specifications

Operating Weight

112426 lb 50996 kg

Bucket Capacity Range

6.4-7.6 m3 (8.3-10 yd3)

Rated Payload - Quarry Face

12.5 ton (US) 11.3 t

Cat Truck Match - High Lift

772/773/775

Transmission

Transmission Type

Cat planetary power shift

Forward - 1

5 mile/h 7.3 km/h

Forward - 2

8 mile/h 12.2 km/h

Reverse - 1

5 mile/h 7.6 km/h

Reverse - 2

8 mile/h 13.6 km/h

Direct Drive - Forward 1

Lock-up disabled

Direct Drive - Forward 2

8 mile/h 12.7 km/h

Direct Drive - Forward 3

14 mile/h 22 km/h

Direct Drive - Forward 4

24 mile/h 39 km/h

Direct Drive - Reverse 1

Lock-up disabled

Direct Drive - Reverse 2

9 mile/h 14.1 km/h

Direct Drive - Reverse 3

16 mile/h 25 km/h

Direct Drive - Reverse 4

25.4 mile/h 40.8 km/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 gpm 600 L/min

Relief Valve Setting - Lift/Tilt

4598 psi 31700 kPa

Cylinders, Double Acting - Lift, Bore and Stroke

190 mm x 1216 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

Relief Valve Setting

500 psi 3450 kPa

Hydraulic Cycle Times

Rack Back

3.8 s 3.8 s

Raise

7.5 s 7.5 s

Dump

3.0 s 3.0 s

Lower Float Down

4.6 s 4.6 s

Total Hydraulic Cycle Time - Empty Bucket

18.9 s 18.9 s

Hydraulic System - Steering

Steering System - Circuit

Pilot, load sensing

Steering System - Pump

Piston, variable displacement

Maximum Flow at 2,165 rpm

159 gpm 600 L/min

Relief Valve Setting - Steering

4000 psi 27600 kPa

Total Steering Angle

70°

Steering Cycle Times - High Idle

3 s 3 s

Steering Cycle Times - Low Idle

5.2 s 5.2 s

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 1.8 kg (3.9 lb) of refrigerant, which has a CO2 equivalent of 2.574 metric tonnes (2.837 tons).

Axles

Front

Fixed

Rear

Trunnion

Oscillation Angle

+/-12.5°

Brakes

ISO 3450:2011

Operator's Cab

ROPS/FOPS

Rollover Protective Structure/Falling Objects Protective Structure (ROPS/FOPS) meet ISO 3471:2008 and ISO 3449:2005 Level II standards

Sound Performance - Tier 4 Final / Stage V

Operator Sound Pressure Level (ISO 6396:2008)

73 dB(A) 73 dB(A)

Machine Sound Power Level (ISO 6395:2008)

113 dB(A) 113 dB(A)

Operator Sound Pressure Level (ISO 6396:2008)*

72 dB(A) 72 dB(A)

Machine Sound Power Level (ISO 6395:2008)**

110 dB(A) 110 dB(A)

Note (1)

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.

Note (3)

Net power at the flywheel when the fan is at maximum speed is 304 kW / 408 hp per SAE reference conditions.

Note (4)

The operator sound pressure level was measured according to ISO 6396:2008. 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)

73 dB(A) 73 dB(A)

Machine Sound Power Level (ISO 6395:2008)

113 dB(A) 113 dB(A)

Operator Sound Pressure Level (ISO 6396:2008)*

72 dB(A) 72 dB(A)

Machine Sound Power Level (ISO 6395:2008)**

110 dB(A) 110 dB(A)

Note (1)

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.

Note (3)

Net power at the flywheel when the fan is at maximum speed is 304 kW / 408 hp per SAE reference conditions.

Note (4)

The operator sound pressure level was measured according to ISO 6396:2008. 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) 535 l

Cooling System

27 gal (US) 101 l

Engine Crankcase

9 gal (US) 34 l

Diesel Exhaust Fluid Tank

5.5 gal (US) 21 l

Transmission

20 gal (US) 75 l

Differential - Final Drives - Front

49 gal (US) 186 l

Differential - Final Drives - Rear

45 gal (US) 170 l

Hydraulic System Factory Fill

94 gal (US) 355 l

Note

Travel speeds based on 35/65-R33 tires.

Dimensions (Approximate) - High Lift

Ground to Top of ROPS

13.5 ft 4100 mm

Ground to Top of Exhaust Stacks

13.3 ft 4060 mm

Ground to Top of Hood

10.7 ft 3270 mm

Ground to Fuel Tank Clearance

2.2 ft 686 mm

Rear Axle - Centerline to Bumper

10.3 ft 3132 mm

Front Axle Centerline to Bucket Tip

16.7 ft 5100 mm

Wheel Base

12.5 ft 3810 mm

Maximum Overall Length

39.5 ft 12042 mm

Ground to Lower Hitch Clearance

1.5 ft 459 mm

Ground to Center of Front Axle

3.2 ft 978 mm

Clearance at Maximum Lift (45° Dump)

12 ft 3732 mm

B-Pin Height - Maximum Lift

18.7 ft 5755 mm

Maximum Overall Height - Bucket Raised

25 ft 7582 mm

Reach at Maximum Lift (45° Dump)

7.7 ft 2342 mm

Note

Travel speeds based on 35/65-R33 tires.

Equipment

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
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 emergency engine shutdown switch
Turbine precleaner, engine air intake
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