Home › Wheel loaders › Caterpillar

Caterpillar 988

Configuration: Standard lift, 6.9 m³ (9.0 yd³) rock bucket (K130 adapters, spade edge, PN 620-8133), Michelin XLDD1 35/65 R33 tires; Cat C18, U.S. EPA Tier 4 Final/EU Stage V. Dimensions are from the doc table calculated with a 6.9 m³ rock bucket.

25 sourced values · Sources: Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25

Check trailer fitDownload CSV

Dimension diagram

A B C D E F Side viewFront view Schematic, not to scale
AOverall length12,193 mm
BOverall height4,202 mm
CWheelbase4,550 mm
DGround clearance568 mm
EOverall width4,020 mm
FTrack gauge / treadNot published

Weights

SpecValueSource
Operating weight52,441 kg
Published: 52,441 kg
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Operating specifications, standard lift, 6.9 m³ rock bucket, 35/65 R33 XLDD1 (115,613 lb). Headline operating weight 51 062 kg.

Dimensions

SpecValueSource
Overall length12,193 mm
Published: 12,193 mm
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Overall length, bucket level on ground, 6.9 m³ rock bucket. Dimension table maximum overall length 11 991 mm.
Overall width4,020 mm
Published: 4,020 mm
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Bucket width overall, 6.9 m³ rock bucket. Width over tires not published.
Overall height4,202 mm
Published: 4,202 mm
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Ground to top of ROPS. Top of exhaust stacks (Tier 4) 4521 mm.
Wheelbase4,550 mm
Published: 4,550 mm
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Track gauge / treadNot publishedCat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Not published in this document.
Ground clearance568 mm
Published: 568 mm
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Ground to lower hitch clearance. Ground to bumper clearance 933 mm.
Turning radiusNot publishedCat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Not published as a radius. Turning circle, corner at SAE carry, 17 262 mm with this bucket.

Undercarriage / tires

SpecValueSource
Undercarriage typeWheeled, articulated
Published: Wheeled, articulated
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Number of axles2
Published: 2
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Front fixed, rear trunnion, oscillation 13°.
Wheels (count)4
Published: 4
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Tire size35/65 R33 (Michelin XLDD1)
Published: 35/65 R33 (Michelin XLDD1)
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25

Ground pressure

SpecValueSource
Ground pressureNot publishedCat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Not published in this document.

Axle loads

SpecValueSource
Axle load, front (unladen/operating)28,877 kg
Published: 28,877 kg
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Weight distribution at SAE carry, empty bucket, front (63,663 lb). Loaded: 47 106 kg.
Axle load, rear (unladen/operating)23,564 kg
Published: 23,564 kg
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Weight distribution at SAE carry, empty bucket, rear (51,950 lb). Loaded: 16 676 kg.

Engine

SpecValueSource
Engine modelCat C18
Published: Cat C18
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
U.S. EPA Tier 4 Final, EU Stage V and Japan 2014 option.
Net power401 kW
Published: 401 kW
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
SAE J1349:2011 (538 hp). Rated speed 1,700 rpm.
Gross power439 kW
Published: 439 kW
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
SAE J1995:2014 (588 hp). ISO 14396: 432 kW.
Displacement18.1 L
Published: 18.1 L
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
1,105 in³.
Rated speed1,700 rpm
Published: 1,700 rpm
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Rated speed. Peak power speed 1,500 rpm.

Hydraulics

SpecValueSource
Pump / aux flow580 L/min
Published: 580 L/min
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Lift/tilt system maximum flow at 1,400-1,860 rpm (153 gal/min), variable displacement piston pumps; per-pump split not published. Pilot and steering systems separate, not added.
System / relief pressure≈ 32.8 MPa
Published: 32,800 kPa
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Relief valve setting, lift/tilt (4,757 psi). Printed as "kpa".

Performance

SpecValueSource
Max travel speed34.7 km/h
Published: 34.7 km/h
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Forward 4, torque converter drive, empty bucket (21.6 mph). Direct drive forward 4: 39.3 km/h.
Bucket capacity6.9 m³
Published: 6.9 m³
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Rock bucket rated capacity (9.0 yd³). Range 4.7-13.0 m³.
Tipping load32,000 kg
Published: 32,000 kg
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Tipping load, rigid tires, at operating weight articulated 35° (70,548 lb). With tire squash 28 776 kg.
Breakout / digging force≈ 403 kN
Published: 41,108 kgf
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Breakout force SAE rated, printed as 41 108 kg (90,627 lb).
Dump height / clearance3,681 mm
Published: 3,681 mm
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
Clearance at 45° dump to cutting edge, 6.9 m³ rock bucket. To tooth tip 3471 mm.
Lift / hinge-pin height5,485 mm
Published: 5,485 mm
Cat 988 Wheel Loader Specifications AEXQ3705-02 (04-2025); Cat C18, U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 column (Brazil MAR-1 and China Stage IV options also listed). Retrieved 2026-10-25
B-pin height at maximum lift, standard lift.

Similar models

BrandModelOperating weight
VolvoL350H51,450 kg
KomatsuWA600-855,400 kg
HitachiZW550-647,573 kg
KomatsuWA500-8 Yard Loader37,353 kg
VolvoL200 High Lift36,520 kg
HitachiZW370-6 HC35,920 kg

Compare side by side with Volvo L350H and Komatsu WA600-8