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Engine
	990 Wheel Loader View Product	988 XE Wheel Loader View Product Remove	988 Wheel Loader View Product Remove
Engine Power - ISO 14396:2002	752 hp	580 hp	580 hp
Engine Model	Cat® C27	Cat® C18	Cat® C18
Emissions	Option 2 - Emits equivalent to U.S. EPA Tier 2	-	-
Rated Speed	1800 r/min	1,700 rpm	1700/rpm
Gross Power - SAE J1995:2014	766 hp	588 hp	588 hp
Net Power - SAE J1349:2011 - Standard Ambient	699 hp	-	-
Net Power - SAE J1349:2011 - High Ambient	648 hp	-	-
Bore	5.4 in	5.7 in	5.7 in
Stroke	6 in	7.2 in	7.2 in
Displacement	1649.5 in³	1105 in³	1105 in³
Peak Torque - 1,200 rpm	2624 lb/ft	2230 lbf·ft	2104 lbf·ft
Torque Rise	18 %	58%	58 %
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.	-	-
Peak Power Speed	-	1,500 rpm	1500/rpm
Net Power - SAE J1349:2011	-	538 hp	538 hp
Note (1)	-	Two engine emissions 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.	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.
Operating Specifications
Operating Weight - Standard	178517 lb	-	-
Bucket Capacity Range	8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³)	4.7-13 m3 (6.2-17 yd3)	4.7-13 m3 (6.2-17 yd3)
Rated Payload - Standard	17.5 ton (US)	-	-
Rated Payload - High Lift	17.5 ton (US)	-	-
Cat Truck Match - Standard	773-775	-	770 - 772
Cat Truck Match - High Lift	775-777	-	773 - 775
Operating Weight	-	116362 lb	112574 lb
Rated Payload - Quarry Face	-	12.5 t	12.5 t
Rated Payload - Loose Material	-	16 t	16 t
Transmission
Transmission Type	Cat planetary power shift	Cat switched reluctance electric drive	Cat planetary powershift
Forward - 1	4.6 mile/h	-	4 mile/h
Forward - 2	8.2 mile/h	-	7.2 mile/h
Forward - 3	14.5 mile/h	-	12.7 mile/h
Reverse - 1	5.1 mile/h	-	4.7 mile/h
Reverse - 2	9.1 mile/h	-	8.3 mile/h
Reverse - 3	16 mile/h	-	14.4 mile/h
Direct Drive - Forward 1	Lock-up disabled	-	Lock-up disabled
Direct Drive - Forward 2	8.2 mile/h	-	7.8 mile/h
Direct Drive - Forward 3	14.5 mile/h	-	13.9 mile/h
Direct Drive - Reverse 1	5.1 mile/h	-	5 mile/h
Direct Drive - Reverse 2	9.1 mile/h	-	8.9 mile/h
Direct Drive - Reverse 3	16 mile/h	-	15.8 mile/h
Note	Travel speeds based on Michelin 45/65R39 LD D2**L5 tires.	-	-
Forward 1 (virtual)	-	4.3 mile/h	-
Forward 2 (virtual)	-	7 mile/h	-
Forward 3 (virtual)	-	13.8 mile/h	-
Forward 4 (virtual)	-	20 mile/h	-
Reverse 1 (virtual)	-	4.3 mile/h	-
Reverse 2 (virtual)	-	7 mile/h	-
Reverse 3 (virtual)	-	17.5 mile/h	-
Forward - 4	-	-	21.6 mile/h
Direct Drive - Forward 4	-	-	24.4 mile/h
Hydraulic System - Lift/Tilt
Lift/Tilt System - Circuit	Positive flow control	EH-Positive Flow Control, Flow Sharing	EH- Positive Flow Control, Flow Sharing
Lift/Tilt System	Variable displacement piston	-	-
Maximum Flow at 1,800 rpm	240 gpm	-	-
Relief Valve Setting - Lift/Tilt	4786 psi	4757 psi	4757 psi
Cylinders, Double Acting - Lift, Bore and Stroke	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	292.1 mm × 820 mm (11.5 in × 32.3 in)	-	266 mm × 685 mm (8.7 in × 27 in)
Pilot System	Open loop and pressure reducing	-	Variable displacement piston
Pilot Relief Setting	507 psi	-	-
Lift/Tilt System - Pump	-	Variable displacement piston	Variable displacement piston
Maximum Flow at 1,400-1,600 rpm	-	153 gpm	-
Lift Cylinder - Bore	-	8.7 in	-
Lift Cylinder - Stroke	-	41.3 in	-
Tilt Cylinder - Bore	-	8.7 in	-
Tilt Cylinder - Stroke	-	27 in	-
Maximum Flow at 1,400-1,860 rpm	-	-	153 gpm
Relief Valve Setting - Main	-	-	551 psi
Hydraulic Cycle Times
Rack Back	4.3 s	4.5 s	-
Raise	8.6 s	8 s	-
Dump	2.9 s	2.2 s	-
Lower	3.7 s	-	-
Lower Float Down	3.7 s	3.5 s	-
Total Hydraulic Cycle Time - Empty Bucket	13.8 s	-	-
Total Hydraulic Cycle Time	-	18.2 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 1,400 rpm	96.2 gpm	-	-
Relief Valve Setting - Steering	5004 psi	-	4351 psi
Total Steering Angle	70°	86°	86 °
Maximum Flow at 1,400-1,600 rpm	-	71.3 gpm	71.3 gpm
Steering Cut Off Pressure	-	4351 psi	-
Steering Cycle Times - High Idle	-	3.4 s	3.4 s
Steering Cycle Times - Low Idle	-	5.6 s	5.6 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 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 con	• 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	8.5°	13°	13 °
Brakes
Brakes	ISO 3450: 2011	ISO 3450:2011	ISO 3450:2011
Service Refill Capacities
Fuel Tank	281 gal (US)	147 gal (US)	188 gal (US)
Cooling System	54.9 gal (US)	-	31.7 gal (US)
Engine Crankcase	20 gal (US)	16 gal (US)	-
Transmission	29.1 gal (US)	16 gal (US)	24.3 gal (US)
Differential - Final Drives - Front	71.6 gal (US)	49 gal (US)	49.1 gal (US)
Differential - Final Drives - Rear	68.9 gal (US)	49 gal (US)	49.1 gal (US)
Hydraulic System Factory Fill	210 gal (US)	-	125.5 gal (US)
Hydraulic Tank - Implement and Hydraulic Fan	68.9 gal (US)	-	-
Hydraulic Tank - Steering and Braking	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 este	Cat U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 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%	• 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
Cooling System - Jacket Water	-	30 gal (US)	-
Cooling Systems - Power Train	-	8 gal (US)	-
Diesel Exhaust Fluid Tank	-	8.7 gal (US)	-
Hydraulic System - Implement/Steering	-	126 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)
Sound Performance - Tier 4 Final / Stage V
Operator Sound Pressure Level (ISO 6396:2008)	72 dB(A)	72 dB(A)	73 dB(A)
Machine Sound Power Level (ISO 6395:2008)	116 dB(A)	109 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)*	114 dB(A)	-	-
Note (1)	*Sound suppression equipped	* 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)	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	** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701.
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 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)	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.	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.
Machine Sound Power Level (ISO 6395:2008)**	-	109 dB(A)	109 dB(A)
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.
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.	-	-
Operator's Cab
ROPS/FOPS	-	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 3 / Stage IIIA
Operator Sound Pressure Level (ISO 6396:2008)	-	72 dB(A)	73 dB(A)
Machine Sound Power Level (ISO 6395:2008)	-	110 dB(A)	112 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)	-	* 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.
Dimensions (Approximate) - Standard Lift
Ground to Top of ROPS	-	13.8 ft	-
Ground to Top of Exhaust Stacks	-	14.8 ft	-
Ground to Top of Hood	-	10.9 ft	-
Ground to Bumper Clearance	-	3.1 ft	-
Rear Axle - Centerline to Bumper	-	10.5 ft	-
Front Axle Centerline to Bucket Tip	-	14 ft	-
Wheel Base	-	14.9 ft	-
Maximum Overall Length	-	39.3 ft	-
Ground to Lower Hitch Clearance	-	1.9 ft	-
Ground to Center of Axles	-	3.2 ft	-
Clearance at Maximum Lift	-	11.9 ft	-
B-Pin Height - Maximum Lift	-	18 ft	-
Maximum Overall Height - Bucket Raised	-	24.5 ft	-
Reach - Maximum Lift	-	6.5 ft	-
Note	-	Specifications are calculated with 6.9 m3 (9.0 yd3) rock bucket and Michelin XLDD2 with 978 mm (3.2 ft) centerline of rear axle height.	-
Dimensions (Approximate) - High Lift
Ground to Top of ROPS	-	13.8 ft	-
Ground to Top of Exhaust Stacks	-	14.8 ft	-
Ground to Top of Hood	-	10.9 ft	-
Ground to Bumper Clearance	-	3.1 ft	-
Rear Axle - Centerline to Bumper	-	10.5 ft	-
Front Axle Centerline to Bucket Tip	-	15.3 ft	-
Wheel Base	-	14.9 ft	-
Maximum Overall Length	-	40.7 ft	-
Ground to Lower Hitch Clearance	-	1.9 ft	-
Ground to Center of Axles	-	3.2 ft	-
Clearance at Maximum Lift	-	13.3 ft	-
B-Pin Height - Maximum Lift	-	19.3 ft	-
Maximum Overall Height - Bucket Raised	-	25.8 ft	-
Reach - Maximum Lift	-	6.8 ft	-
Note	-	Specifications are calculated with 6.9 m3 (9.0 yd3) rock bucket and Michelin XLDD2 with 978 mm (3.2 ft) centerline of rear axle height.	-
Dimensions - Millyard Linkage
Ground to Top of ROPS	-	13.8 ft	-
Ground to Top of Exhaust Stacks	-	13.8 ft	-
Ground to Top of Hood	-	10.9 ft	-
Ground to Bumper Clearance	-	3.1 ft	-
Rear Axle - Centerline to Bumper	-	10.5 ft	-
Front Axle Centerline to Fork Tip	-	16.5 ft	-
Wheel Base	-	14.9 ft	-
Maximum Overall Length	-	41.9 ft	-
Ground to Lower Hitch Clearance	-	1.9 ft	-
Ground to Center of Front Axle	-	3.2 ft	-
Fork Height with Level Arms	-	8.1 ft	-
Fork Top Clamp Opening	-	13.1 ft	-
Fork Height at Maximum Lift	-	17.2 ft	-
Hinge Pin Height at Maximum Lift	-	16.1 ft	-
Dump Angle at Maximum Lift	-	-39.4 °	-
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

990 Wheel Loader

988 XE Wheel Loader

988 Wheel Loader

Engine

Operating Specifications

Transmission

Hydraulic System - Lift/Tilt

Hydraulic Cycle Times

Hydraulic System - Steering

Air Conditioning System

Axles

Brakes

Service Refill Capacities

Sound Performance - Tier 4 Final / Stage V

Sound Performance - Tier 2

Dimensions (Approximate) - Standard Lift Linkage

Dimensions (Approximate) - High Lift Linkage

Operator's Cab

Sound Performance - Tier 3 / Stage IIIA

Dimensions (Approximate) - Standard Lift

Dimensions (Approximate) - High Lift

Dimensions - Millyard Linkage

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

Earthmoving

Parts & Service

Power Systems

Technology

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