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Operating Specifications
	988 GC Wheel Loader View Product	990 Wheel Loader View Product Remove	988 Wheel Loader View Product Remove
Operating Weight	112426 lb	-	112574 lb
Bucket Capacity Range	6.4-7.6 m3 (8.3-10 yd3)	8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³)	4.7-13 m3 (6.2-17 yd3)
Rated Payload - Quarry Face	12.5 ton (US)	-	12.5 t
Cat Truck Match - High Lift	772/773/775	775-777	773 - 775
Operating Weight - Standard	-	178517 lb	-
Rated Payload - Standard	-	17.5 ton (US)	-
Rated Payload - High Lift	-	17.5 ton (US)	-
Cat Truck Match - Standard	-	773-775	770 - 772
Rated Payload - Loose Material	-	-	16 t
Engine
Engine Model	Cat® C15	Cat® C27	Cat® C18
Rated Speed	2000 rpm	1800 r/min	1700/rpm
Peak Power Speed	1600 rpm	-	1500/rpm
Gross Power - SAE J1995:2014	456 hp	766 hp	588 hp
Net Power - SAE J1349:2011	448 hp	-	538 hp
Bore	5.4 in	5.4 in	5.7 in
Stroke	6.75 in	6 in	7.2 in
Displacement	927 in³	1649.5 in³	1105 in³
Peak Torque (1,200 rpm) - SAE J1995:2014	1778 lbf·ft	-	-
Torque Rise	16%	18 %	58 %
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.	-	Three engine emission options are available: 1. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. 2. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. 3. Meets China Nonroad Stage IV emissio
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.	-	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.	-	-
Engine Power - ISO 14396:2002	-	752 hp	580 hp
Emissions	-	Option 2 - Emits equivalent to U.S. EPA Tier 2	-
Net Power - SAE J1349:2011 - Standard Ambient	-	699 hp	-
Net Power - SAE J1349:2011 - High Ambient	-	648 hp	-
Peak Torque - 1,200 rpm	-	2624 lb/ft	2104 lbf·ft
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.	-
Transmission
Transmission Type	Cat planetary power shift	Cat planetary power shift	Cat planetary powershift
Forward - 1	5 mile/h	4.6 mile/h	4 mile/h
Forward - 2	8 mile/h	8.2 mile/h	7.2 mile/h
Reverse - 1	5 mile/h	5.1 mile/h	4.7 mile/h
Reverse - 2	8 mile/h	9.1 mile/h	8.3 mile/h
Direct Drive - Forward 1	Lock-up disabled	Lock-up disabled	Lock-up disabled
Direct Drive - Forward 2	8 mile/h	8.2 mile/h	7.8 mile/h
Direct Drive - Forward 3	14 mile/h	14.5 mile/h	13.9 mile/h
Direct Drive - Forward 4	24 mile/h	-	24.4 mile/h
Direct Drive - Reverse 1	Lock-up disabled	5.1 mile/h	5 mile/h
Direct Drive - Reverse 2	9 mile/h	9.1 mile/h	8.9 mile/h
Direct Drive - Reverse 3	16 mile/h	16 mile/h	15.8 mile/h
Direct Drive - Reverse 4	25.4 mile/h	-	-
Note	Travel speeds based on 35/65-R33 tires.	Travel speeds based on Michelin 45/65R39 LD D2**L5 tires.	-
Forward - 3	-	14.5 mile/h	12.7 mile/h
Reverse - 3	-	16 mile/h	14.4 mile/h
Forward - 4	-	-	21.6 mile/h
Hydraulic System - Lift/Tilt
Lift/Tilt System - Circuit	EH - Load Sense	Positive flow control	EH- Positive Flow Control, Flow Sharing
Lift/Tilt System - Pump	Variable displacement piston	-	Variable displacement piston
Maximum Flow at 2,165 rpm	159 gpm	-	-
Relief Valve Setting - Lift/Tilt	4598 psi	4786 psi	4757 psi
Cylinders, Double Acting - Lift, Bore and Stroke	190 mm x 1216 mm (7.5 in x 48 in)	235 mm × 1287 mm (9.3 in × 50.7 in)	210 mm × 1050 mm (8.7 in × 41.3 in)
Cylinders, Double Acting - Tilt, Bore and Stroke	170 mm x 722 mm (6.7 in x 28.4 in)	292.1 mm × 820 mm (11.5 in × 32.3 in)	266 mm × 685 mm (8.7 in × 27 in)
Pilot System	Variable displacement piston	Open loop and pressure reducing	Variable displacement piston
Relief Valve Setting	500 psi	-	-
Lift/Tilt System	-	Variable displacement piston	-
Maximum Flow at 1,800 rpm	-	240 gpm	-
Pilot Relief Setting	-	507 psi	-
Maximum Flow at 1,400-1,860 rpm	-	-	153 gpm
Relief Valve Setting - Main	-	-	551 psi
Hydraulic Cycle Times
Rack Back	3.8 s	4.3 s	-
Raise	7.5 s	8.6 s	-
Dump	3 s	2.9 s	-
Lower Float Down	4.6 s	3.7 s	-
Total Hydraulic Cycle Time - Empty Bucket	18.9 s	13.8 s	-
Lower	-	3.7 s	-
Hydraulic System - Steering
Steering System - Circuit	Pilot, load sensing	Pilot, load sensing	Pilot, load sensing
Steering System - Pump	Piston, variable displacement	Piston, variable displacement	Piston, variable displacement
Maximum Flow at 2,165 rpm	52 gpm	-	-
Relief Valve Setting - Steering	4000 psi	5004 psi	4351 psi
Total Steering Angle	70°	70°	86 °
Steering Cycle Times - High Idle	3 s	-	3.4 s
Steering Cycle Times - Low Idle	5.2 s	-	5.6 s
Maximum Flow at 1,400 rpm	-	96.2 gpm	-
Maximum Flow at 1,400-1,600 rpm	-	-	71.3 gpm
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 co	• 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 c	• 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
Axles
Front	Fixed	Fixed	Fixed
Rear	Trunnion	Trunnion	Trunnion
Oscillation Angle	+/-12.5°	8.5°	13 °
Brakes
Brakes	ISO 3450:2011	ISO 3450: 2011	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	-	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)	72 dB(A)	73 dB(A)
Machine Sound Power Level (ISO 6395:2008)	113 dB(A)	116 dB(A)	111 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*	72 dB(A)	72 dB(A)	72 dB(A)
Machine Sound Power Level (ISO 6395:2008)**	110 dB(A)	-	109 dB(A)
Note (1)	* For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.”	*Sound suppression equipped	* For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.”
Note (2)	** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701.	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.	** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701.
Note (3)	The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% 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.	The machine sound power level was measured according to ISO 6395:2008. 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 6396:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.	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.	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.	-	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.
Machine Sound Power Level (ISO 6395:2008)*	-	114 dB(A)	-
Sound Performance - Tier 3 / Stage IIIA
Operator Sound Pressure Level (ISO 6396:2008)	74 dB(A)	-	73 dB(A)
Machine Sound Power Level (ISO 6395:2008)	113 dB(A)	-	112 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*	73 dB(A)	-	72 dB(A)
Machine Sound Power Level (ISO 6395:2008)**	110 dB(A)	-	110 dB(A)
Note (1)	* For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.”	-	* For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.”
Note (2)	** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701.	-	** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701.
Note (3)	The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% 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% of the maximum engine cooling fan speed.
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.	-	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.	-	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)	281 gal (US)	188 gal (US)
Cooling System	27 gal (US)	54.9 gal (US)	31.7 gal (US)
Engine Crankcase	9 gal (US)	20 gal (US)	-
Diesel Exhaust Fluid Tank	5.5 gal (US)	-	-
Transmission	20 gal (US)	29.1 gal (US)	24.3 gal (US)
Differential - Final Drives - Front	49 gal (US)	71.6 gal (US)	49.1 gal (US)
Differential - Final Drives - Rear	45 gal (US)	68.9 gal (US)	49.1 gal (US)
Hydraulic System Factory Fill	94 gal (US)	210 gal (US)	125.5 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	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 este	• All non-road Tier 4 Final/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
Hydraulic Tank - Implement and Hydraulic Fan	-	68.9 gal (US)	-
Hydraulic Tank - Steering and Braking	-	34.9 gal (US)	-
Coolant (Validated by Test Cell Fill Quantities)	-	-	33 gal (US)
Crankcase	-	-	15.9 gal (US)
Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage V Only)	-	-	8.7 gal (US)
Transmission - Validated by Test Cell Fill Quantities	-	-	29 gal (US)
Hydraulic System - Tank Only	-	-	63.4 gal (US)
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	-	-
Ground to Fuel Tank Clearance	2.2 ft	-	-
Rear Axle - Centerline to Bumper	10.3 ft	-	-
Front Axle Centerline to Bucket Tip	16.7 ft	-	-
Wheel Base	12.5 ft	-	-
Maximum Overall Length	39.5 ft	-	-
Ground to Lower Hitch Clearance	1.5 ft	-	-
Ground to Center of Front Axle	3.2 ft	-	-
Clearance at Maximum Lift (45° Dump)	12 ft	-	-
B-Pin Height - Maximum Lift	18.7 ft	-	-
Maximum Overall Height - Bucket Raised	25 ft	-	-
Reach at Maximum Lift (45° Dump)	7.7 ft	-	-
Note	Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires.	-	-
Sound Performance - Tier 2
Operator Sound Pressure Level (ISO 6396:2008)	-	72 dB(A)	-
Machine Sound Power Level (ISO 6395:2008)	-	116 dB(A)	-
Operator Sound Pressure Level (ISO 6396:2008)*	-	72 dB(A)	-
Machine Sound Power Level (ISO 6395:2008)*	-	114 dB(A)	-
Note (1)	-	*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.	-
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.	-
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.	-
Dimensions (Approximate) - Standard Lift Linkage
Ground to Top of ROPS	-	17.2 ft	13.8 ft
Ground to Top of Exhaust Stacks	-	16.6 ft	14.8 ft
Ground to Top of Hood	-	12.7 ft	10.9 ft
Ground to Bumper Clearance	-	3.5 ft	-
Rear Axle - Centerline to Bumper	-	12.5 ft	10.5 ft
Front Axle Centerline to Bucket Tip	-	15.4 ft	14 ft
Wheel Base	-	15.1 ft	14.9 ft
Maximum Overall Length	-	42.9 ft	39.3 ft
Ground to Lower Hitch Clearance	-	2 ft	1.9 ft
Ground to Center of Front Axle	-	4.2 ft	-
Clearance at Maximum Lift	-	7.2 ft	11.9 ft
Rack Back Angle at Ground Level	-	40.4°	-
Rack Back Angle at Carry	-	48.8°	-
B-Pin Height - Maximum Lift	-	19.7 ft	18 ft
Maximum Overall Height - Bucket Raised	-	27.2 ft	24.5 ft
Rack Angle at Maximum Lift	-	63.7°	-
Dump Angle at Maximum Lift	-	45°	-
Reach - Maximum Lift	-	7.2 ft	6.5 ft
Note	-	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	-	17.2 ft	13.8 ft
Ground to Top of Exhaust Stacks	-	16.6 ft	14.8 ft
Ground to Top of Hood	-	12.7 ft	10.9 ft
Ground to Bumper Clearance	-	3.5 ft	-
Rear Axle - Centerline to Bumper	-	12.5 ft	10.5 ft
Front Axle Centerline to Bucket Tip	-	17.8 ft	15.3 ft
Wheel Base	-	15.1 ft	14.9 ft
Maximum Overall Length	-	45.3 ft	40.7 ft
Ground to Lower Hitch Clearance	-	2 ft	1.9 ft
Ground to Center of Front Axle	-	4.2 ft	-
Clearance at Maximum Lift	-	14.8 ft	13.3 ft
Rack Back Angle at Ground Level	-	39.9°	-
Rack Back Angle at Carry	-	49.3°	-
B-Pin Height - Maximum Lift	-	21.2 ft	19.3 ft
Maximum Overall Height - Bucket Raised	-	28.7 ft	25.8 ft
Rack Angle at Maximum Lift	-	60.6°	-
Dump Angle at Maximum Lift	-	51°	-
Reach - Maximum Lift	-	8.5 ft	6.8 ft
Note	-	Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires.	-
Hydraulic Cycle Time (1,400-1,860 rpm)
Rack Back	-	-	4.5 s
Raise	-	-	8 s
Dump	-	-	2.2 s
Lower Float Down	-	-	3.5 s
Total Hydraulic Cycle Time - Empty Bucket	-	-	18.2 s

Compare Equipment Go Back

988 GC Wheel Loader

990 Wheel Loader

988 Wheel Loader

Operating Specifications

Engine

Transmission

Hydraulic System - Lift/Tilt

Hydraulic Cycle Times

Hydraulic System - Steering

Air Conditioning System

Axles

Brakes

Operator's Cab

Sound Performance - Tier 4 Final / Stage V

Sound Performance - Tier 3 / Stage IIIA

Service Refill Capacities

Dimensions (Approximate) - High Lift

Sound Performance - Tier 2

Dimensions (Approximate) - Standard Lift Linkage

Dimensions (Approximate) - High Lift Linkage

Hydraulic Cycle Time (1,400-1,860 rpm)

Earthmoving

Parts & Service

Power Systems

Technology

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