Machine models

Cat 988 and 988 XE specifications

Entries in this reference
Listing-entry count
2

Short answer

Cat 988 and 988 XE: wheel loaders.

Selected configuration figures
Configuration	Documented field and quantity
988	Gross Power - SAE J1995:2014 588 hp Operating Weight 112,574 lb
988 XE	Gross Power - SAE J1995:2014 588 hp Operating Weight 116,362 lb

988 and 988 XE specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Cat	988 and 988 XE	2	988 and 988 XE

Engine
Specification	988	988 XE
Engine Power - ISO 14396:2002	580 hp	580 hp
Engine Model	Cat® C18	Cat® C18
Rated Speed	1700/rpm	1,700 rpm
Peak Power Speed	1500/rpm	1,500 rpm
Gross Power - SAE J1995:2014	588 hp	588 hp
Net Power - SAE J1349:2011	538 hp	538 hp
Bore	5.7 in	5.7 in
Stroke	7.2 in	7.2 in
Displacement	1,105 in³	1,105 in³
Peak Torque - 1,200 rpm	2104 lbf·ft	2230 lbf·ft
Torque Rise	58 %	58%

Operating Specifications
Specification	988	988 XE
Operating Weight	112,574 lb	116,362 lb
Bucket Capacity Range	4.7-13 m3 (6.2-17 yd3)	4.7-13 m3 (6.2-17 yd3)
Rated Payload - Quarry Face	12.5 t	12.5 t
Rated Payload - Loose Material	16 t	16 t

Specification	988
Cat Truck Match - Standard	770 - 772
Cat Truck Match - High Lift	773 - 775

Transmission and speeds
Specification	988	988 XE
Transmission Type	Cat planetary powershift	Cat switched reluctance electric drive

Specification	988
Forward - 1	4 mph
Forward - 2	7.2 mph
Forward - 3	12.7 mph
Forward - 4	21.6 mph
Reverse - 1	4.7 mph
Reverse - 2	8.3 mph
Reverse - 3	14.4 mph
Direct Drive - Forward 1	Lock-up disabled
Direct Drive - Forward 2	7.8 mph
Direct Drive - Forward 3	13.9 mph
Direct Drive - Forward 4	24.4 mph
Direct Drive - Reverse 1	5 mph
Direct Drive - Reverse 2	8.9 mph
Direct Drive - Reverse 3	15.8 mph

Specification	988 XE
Forward 1 (virtual)	4.3 mph
Forward 2 (virtual)	7 mph
Forward 3 (virtual)	13.8 mph
Forward 4 (virtual)	20 mph
Reverse 1 (virtual)	4.3 mph
Reverse 2 (virtual)	7 mph
Reverse 3 (virtual)	17.5 mph

Hydraulic System Lift/Tilt
Specification	988	988 XE
Lift/Tilt System - Circuit	EH- Positive Flow Control, Flow Sharing	EH-Positive Flow Control, Flow Sharing
Lift/Tilt System - Pump	Variable displacement piston	Variable displacement piston
Relief Valve Setting - Lift/Tilt	4,757 psi	4,757 psi

Specification	988
Maximum Flow at 1,400-1,860 rpm	153 gpm
Cylinders, Double Acting - Lift, Bore and Stroke	210 mm × 1050 mm (8.7 in × 41.3 in)
Cylinders, Double Acting - Tilt, Bore and Stroke	266 mm × 685 mm (8.7 in × 27 in)
Pilot System	Variable displacement piston
Relief Valve Setting - Main	551 psi

Specification	988 XE
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

Hydraulic Cycle Time (1,400 1,860 rpm)
Specification	988
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

Hydraulic System Steering
Specification	988	988 XE
Steering System - Circuit	Pilot, load sensing	Pilot, load sensing
Steering System - Pump	Piston, variable displacement	Piston, variable displacement
Maximum Flow at 1,400-1,600 rpm	71.3 gpm	71.3 gpm
Total Steering Angle	86 °	86°
Steering Cycle Times - High Idle	3.4 s	3.4 s
Steering Cycle Times - Low Idle	5.6 s	5.6 s

Specification	988
Relief Valve Setting - Steering	4,351 psi

Specification	988 XE
Steering Cut Off Pressure	4,351 psi

Air Conditioning System
Specification	988	988 XE
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)	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
Specification	988	988 XE
Front	Fixed	Fixed
Rear	Trunnion	Trunnion
Oscillation Angle	13 °	13°

Brakes
Specification	988	988 XE
Brakes	ISO 3450:2011	ISO 3450:2011

Operator's Cab
Specification	988	988 XE
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 4 Final / Stage V
Specification	988	988 XE
Operator Sound Pressure Level (ISO 6396:2008)	73 dB(A)	72 dB(A)
Machine Sound Power Level (ISO 6395:2008)	111 dB(A)	109 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*	72 dB(A)	72 dB(A)
Machine Sound Power Level (ISO 6395:2008)**	109 dB(A)	109 dB(A)

Sound Performance Tier 3 / Stage IIIA
Specification	988	988 XE
Machine Sound Power Level (ISO 6395:2008)	112 dB(A)	110 dB(A)
Machine Sound Power Level (ISO 6395:2008)**	110 dB(A)	110 dB(A)

Service Refill Capacities
Specification	988	988 XE
Fuel Tank	188 gal (US)	147 gal (US)
Transmission	24.3 gal (US)	16 gal (US)
Differential - Final Drives - Front	49.1 gal (US)	49 gal (US)
Differential - Final Drives - Rear	49.1 gal (US)	49 gal (US)

Specification	988
Cooling System	31.7 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 Factory Fill	125.5 gal (US)
Hydraulic System - Tank Only	63.4 gal (US)

Specification	988 XE
Cooling System - Jacket Water	30 gal (US)
Cooling Systems - Power Train	8 gal (US)
Engine Crankcase	16 gal (US)
Diesel Exhaust Fluid Tank	8.7 gal (US)
Hydraulic System - Implement/Steering	126 gal (US)

Dimensions (Approximate) Standard Lift Linkage
Specification	988
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
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
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

Dimensions (Approximate) High Lift Linkage
Specification	988
Front Axle Centerline to Bucket Tip	15.3 ft
Maximum Overall Length	40.7 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

Hydraulic Cycle Times
Specification	988 XE
Rack Back	4.5 s
Raise	8 s
Dump	2.2 s
Lower Float Down	3.5 s
Total Hydraulic Cycle Time	18.2 s

Dimensions (Approximate) Standard Lift
Specification	988 XE
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

Dimensions (Approximate) High Lift
Specification	988 XE
Front Axle Centerline to Bucket Tip	15.3 ft
Maximum Overall Length	40.7 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

Dimensions Millyard Linkage
Specification	988 XE
Ground to Top of Exhaust Stacks	13.8 ft
Front Axle Centerline to Fork Tip	16.5 ft
Maximum Overall Length	41.9 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 °

Variants — Source comparison annotation
Source guide	Differing-field count reported
988 and 988 XE	122

Ratios
Figure	988	988 XE
Engine horsepower per 1,000 lb of weight	5.2	5.1
Fuel tank per engine horsepower	0.32 gal	0.25 gal

988 and 988 XE: owner reports

Sources: 3 forum discussions about the Caterpillar 988 wheel loaders (988H, 988K); heavyequipmentforums.com.

Implement hydraulics and position sensors. A 988K whose lift died when the bucket tilted back although pilot pressure was normal, a 988K with weak, slow and jumpy lift and tilt, and a 988H with lift and tilt linkage position sensor codes that would not clear after calibration. Threads read: 1, 2, 3.

988 and 988 XE: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	wheel loader	Cat and the 988 line that the 988, 988 XE belongs to (no title names the exact model)	90

Topics named by those titles
Title topic	Titles
hydraulics	12
transmission and drive	10
brakes and steering	6

Topic in the title	Threads	Share of matching threads
hydraulics	12	13%
transmission and drive	10	11%
brakes and steering	6	7%
emissions	4	4%
electrical and sensors	4	4%

Is There A Screen On The Bottom Of The Torque Converter Housing One Caterpillar 988 (Heavy Equipment Forums, 2026-07-09)
CAT 988 Hydraulic Issue 988k Twx (Heavy Equipment Forums, 2026-04-23)
988 A Caterpillar 1960 Year (Heavy Equipment Forums, 2026-01-17)
CAT 988a Transmission Issue (Heavy Equipment Forums, 2025-05-26)

Used market for the 988 and 988 XE — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	MachineryTrader	Cat wheel loader	184

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
988	182	1976 to 2025	$19,500	$1,005,000	$202,000	7,951
988 XE	2	2024	None shown	None shown	None shown	None shown

988 and 988 XE: recall reference — Dated CPSC search
Search date	Database	Names queried	Search result
2026-09-24	U.S. Consumer Product Safety Commission	Cat together with the wheel loader 988, 988 XE	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Manufacturer	Manufacturer: Cat 988 — Caterpillar Inc.. Observed 2026-09-24.
Manufacturer	Manufacturer: Cat 988 XE — Caterpillar Inc.. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Cat 988 and 988 XE — Heavy Equipment Forums. Observed 2026-09-24.
Forum threads	Forum threads: Forum threads read for the Caterpillar 988 wheel loaders (988H, 988K) — Heavyequipmentforums. Observed 2026-09-24.
Used-market listings	Used-market listings: MachineryTrader listings for Cat 988 — MachineryTrader. Observed 2026-09-24.
Federal agency data	Federal agency data: Recall database search for Cat — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

Cat 988 and 988 XE: Configuration records

988

Specification	Source figure
Engine
Rated Speed	1700/rpm
Peak Power Speed	1500/rpm
Gross Power - SAE J1995:2014	588 hp
Net Power - SAE J1349:2011	538 hp
Torque Rise	58 %
Engine Power - ISO 14396:2002	580 hp
Peak Torque - 1,200 rpm	2104 lbf·ft
Transmission and speeds
Forward - 1	4 mph
Forward - 2	7.2 mph
Forward - 3	12.7 mph
Forward - 4	21.6 mph
Reverse - 1	4.7 mph
Reverse - 2	8.3 mph
Reverse - 3	14.4 mph
Transmission Type	Cat planetary powershift
Direct Drive - Forward 1	Lock-up disabled
Direct Drive - Forward 2	7.8 mph
Direct Drive - Forward 3	13.9 mph
Direct Drive - Forward 4	24.4 mph
Direct Drive - Reverse 1	5 mph
Direct Drive - Reverse 2	8.9 mph
Direct Drive - Reverse 3	15.8 mph
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)
Operating Specifications
Bucket Capacity Range	4.7-13 m3 (6.2-17 yd3)
Cat Truck Match - High Lift	773 - 775
Rated Payload - Quarry Face	12.5 t
Rated Payload - Loose Material	16 t
Cat Truck Match - Standard	770 - 772
Service Refill Capacities
Cooling System	31.7 gal (US)
Fuel Tank	188 gal (US)
Crankcase	15.9 gal (US)
Transmission	24.3 gal (US)
Differential - Final Drives - Front	49.1 gal (US)
Differential - Final Drives - Rear	49.1 gal (US)
Hydraulic System Factory Fill	125.5 gal (US)
Hydraulic System - Tank Only	63.4 gal (US)
Coolant (Validated by Test Cell Fill Quantities)	33 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)
Axles
Front	Fixed
Rear	Trunnion
Oscillation Angle	13 °
Hydraulic System Lift/Tilt
Lift/Tilt System - Circuit	EH- Positive Flow Control, Flow Sharing
Lift/Tilt System - Pump	Variable displacement piston
Relief Valve Setting - Lift/Tilt	4,757 psi
Pilot System	Variable displacement piston
Maximum Flow at 1,400-1,860 rpm	153 gpm
Relief Valve Setting - Main	551 psi
Hydraulic Cycle Time (1,400 1,860 rpm)
Total Hydraulic Cycle Time - Empty Bucket	18.2 s
Hydraulic System Steering
Steering System - Circuit	Pilot, load sensing
Steering System - Pump	Piston, variable displacement
Relief Valve Setting - Steering	4,351 psi
Steering Cycle Times - High Idle	3.4 s
Steering Cycle Times - Low Idle	5.6 s
Sound Performance Tier 4 Final / Stage V
Operator Sound Pressure Level (ISO 6396:2008)	73 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*	72 dB(A)
Additional specifications
Engine Model	Cat® C18
Displacement	1,105 in³
Bore	5.7 in
Stroke	7.2 in
Brakes	ISO 3450:2011
Operating Weight	112,574 lb
Total Steering Angle	86 °
Maximum Flow at 1,400-1,600 rpm	71.3 gpm
ROPS/FOPS	ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards
Machine Sound Power Level (ISO 6395:2008)	111 dB(A)
Machine Sound Power Level (ISO 6395:2008)**	109 dB(A)
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
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
B-Pin Height - Maximum Lift	18 ft
Maximum Overall Height - Bucket Raised	24.5 ft
Clearance at Maximum Lift	11.9 ft
Reach - Maximum Lift	6.5 ft
Rack Back	4.5 s
Raise	8 s
Dump	2.2 s
Lower Float Down	3.5 s

Source

988 XE

Specification	Source figure
Engine
Rated Speed	1,700 rpm
Peak Power Speed	1,500 rpm
Gross Power - SAE J1995:2014	588 hp
Net Power - SAE J1349:2011	538 hp
Torque Rise	58%
Engine Power - ISO 14396:2002	580 hp
Peak Torque - 1,200 rpm	2230 lbf·ft
Transmission and speeds
Transmission Type	Cat switched reluctance electric drive
Forward 1 (virtual)	4.3 mph
Forward 2 (virtual)	7 mph
Forward 3 (virtual)	13.8 mph
Forward 4 (virtual)	20 mph
Reverse 1 (virtual)	4.3 mph
Reverse 2 (virtual)	7 mph
Reverse 3 (virtual)	17.5 mph
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)
Operating Specifications
Bucket Capacity Range	4.7-13 m3 (6.2-17 yd3)
Rated Payload - Quarry Face	12.5 t
Rated Payload - Loose Material	16 t
Service Refill Capacities
Fuel Tank	147 gal (US)
Transmission	16 gal (US)
Differential - Final Drives - Front	49 gal (US)
Differential - Final Drives - Rear	49 gal (US)
Engine Crankcase	16 gal (US)
Diesel Exhaust Fluid Tank	8.7 gal (US)
Cooling System - Jacket Water	30 gal (US)
Cooling Systems - Power Train	8 gal (US)
Hydraulic System - Implement/Steering	126 gal (US)
Axles
Front	Fixed
Rear	Trunnion
Oscillation Angle	13°
Hydraulic System Lift/Tilt
Lift/Tilt System - Circuit	EH-Positive Flow Control, Flow Sharing
Lift/Tilt System - Pump	Variable displacement piston
Relief Valve Setting - Lift/Tilt	4,757 psi
Lift Cylinder - Bore	8.7 in
Lift Cylinder - Stroke	41.3 in
Tilt Cylinder - Bore	8.7 in
Tilt Cylinder - Stroke	27 in
Hydraulic System Steering
Steering System - Circuit	Pilot, load sensing
Steering System - Pump	Piston, variable displacement
Steering Cycle Times - High Idle	3.4 s
Steering Cycle Times - Low Idle	5.6 s
Steering Cut Off Pressure	4,351 psi
Sound Performance Tier 4 Final / Stage V
Operator Sound Pressure Level (ISO 6396:2008)	72 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*	72 dB(A)
Hydraulic Cycle Times
Total Hydraulic Cycle Time	18.2 s
Dimensions (Approximate) Standard Lift
Ground to Bumper Clearance	3.1 ft
Ground to Center of Axles	3.2 ft
Dimensions Millyard Linkage
Front Axle Centerline to Fork Tip	16.5 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
Dump Angle at Maximum Lift	-39.4 °
Additional specifications
Engine Model	Cat® C18
Displacement	1,105 in³
Bore	5.7 in
Stroke	7.2 in
Brakes	ISO 3450:2011
Operating Weight	116,362 lb
Maximum Flow at 1,400-1,600 rpm	153 gpm
Rack Back	4.5 s
Raise	8 s
Dump	2.2 s
Lower Float Down	3.5 s
Total Steering Angle	86°
ROPS/FOPS	ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards
Machine Sound Power Level (ISO 6395:2008)	109 dB(A)
Machine Sound Power Level (ISO 6395:2008)**	109 dB(A)
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
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
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
Hinge Pin Height at Maximum Lift	16.1 ft

Source

Compare Cat 988, 988 XE

Engine
Specification	988	988 XE
Engine Power - ISO 14396:2002	580 hp	580 hp
Engine Model	Cat® C18	Cat® C18
Rated Speed	1700/rpm	1,700 rpm
Peak Power Speed	1500/rpm	1,500 rpm
Gross Power - SAE J1995:2014	588 hp	588 hp
Net Power - SAE J1349:2011	538 hp	538 hp
Bore	5.7 in	5.7 in
Stroke	7.2 in	7.2 in
Displacement	1,105 in³	1,105 in³
Peak Torque - 1,200 rpm	2104 lbf·ft	2230 lbf·ft
Torque Rise	58 %	58%

Operating Specifications
Specification	988	988 XE
Operating Weight	112,574 lb	116,362 lb
Bucket Capacity Range	4.7-13 m3 (6.2-17 yd3)	4.7-13 m3 (6.2-17 yd3)
Rated Payload - Quarry Face	12.5 t	12.5 t
Rated Payload - Loose Material	16 t	16 t

Transmission and speeds
Specification	988	988 XE
Transmission Type	Cat planetary powershift	Cat switched reluctance electric drive

Hydraulic System Lift/Tilt
Specification	988	988 XE
Lift/Tilt System - Circuit	EH- Positive Flow Control, Flow Sharing	EH-Positive Flow Control, Flow Sharing
Lift/Tilt System - Pump	Variable displacement piston	Variable displacement piston
Relief Valve Setting - Lift/Tilt	4,757 psi	4,757 psi

Hydraulic System Steering
Specification	988	988 XE
Steering System - Circuit	Pilot, load sensing	Pilot, load sensing
Steering System - Pump	Piston, variable displacement	Piston, variable displacement
Total Steering Angle	86 °	86°
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
Specification	988	988 XE
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)	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
Specification	988	988 XE
Front	Fixed	Fixed
Rear	Trunnion	Trunnion
Oscillation Angle	13 °	13°

Brakes
Specification	988	988 XE
Brakes	ISO 3450:2011	ISO 3450:2011

Operator's Cab
Specification	988	988 XE
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 4 Final / Stage V
Specification	988	988 XE
Operator Sound Pressure Level (ISO 6396:2008)	73 dB(A)	72 dB(A)
Machine Sound Power Level (ISO 6395:2008)	111 dB(A)	109 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*	72 dB(A)	72 dB(A)
Machine Sound Power Level (ISO 6395:2008)**	109 dB(A)	109 dB(A)

Service Refill Capacities
Specification	988	988 XE
Fuel Tank	188 gal (US)	147 gal (US)
Transmission	24.3 gal (US)	16 gal (US)
Differential - Final Drives - Front	49.1 gal (US)	49 gal (US)
Differential - Final Drives - Rear	49.1 gal (US)	49 gal (US)

More in Cat: 988F Series II: bucket ratings/rimpull/service differences, 988H, 992C/992D: STIC controls/cab height/beadless tires.

Cat 988 and 988 XE specifications

988 and 988 XE: owner reports

Sources for this page

Cat 988 and 988 XE: Configuration records