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Cat 903 specifications

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Short answer

Cat 903: wheel loader.

Selected configuration figures
ConfigurationDocumented field and quantity
903
Maximum Gross Power
48 hp
Operating Weight
9,200 lb
903 specification matrix — Engine
Specification903
Maximum Gross Power48 hp
Engine ModelCat C1.7*
Net Power @ 2,200 rpm - SAE J1349:201145 hp
Net Power @ 2,200 rpm - ISO 9249:200745 hp
Bore3.3 in
Stroke3.9 in
Displacement104 in²
Weights
Specification903
Operating Weight9,200 lb
Buckets
Specification903
Bucket Capacities0.6-1 m3 (0.8-1.3 yd3)
Bucket Capacities - General Purpose0.6 m3 (0.8 yd3)
Bucket Capacities - Light Material1 m3 (1.3 yd3)
Transmission and speeds
Specification903
Travel Speed12.4 mph
Hydraulic System
Specification903
Main Relief3,336 psi
3rd Auxiliary Flow14.1 gpm
Hydraulic Cycle Time - Lift4.5 s
Hydraulic Cycle Time - Dump0.7 s
Hydraulic Cycle Time - Lower, Float2.3 s
Cab
Specification903
ROPSISO 3471:2008
FOPSISO 3449:2005 Level I
Service Refill Capacities
Specification903
Cooling System3 gal (US)
Fuel Tank11.4 gal (US)
Hydraulic System6.3 gal (US)
Engine Oil1.6 gal (US)
Dimensions (Approximate) Standard Lift
Specification903
Cab Height8.25 ft
Ground Clearance10 in
Wheel Base6.42 ft
Overall Length - With Bucket*15.4 ft
Reach at Maximum Dump Height*2.33 ft
Dig Depth5 in
Maximum Dump Height*7.75 ft
Load Over Height9.25 ft
Hinge Pin at Maximum Height10.08 ft
Departure Angle - Degrees30°
Overall Length - With Forks16.83 ft
Reach - Ground Level2.5 ft
Maximum Reach4.33 ft
Fork Depth Above Ground3 in
Fork Height at Maximum Reach4.75 ft
Maximum Fork Height9.9 ft
Fork Reach at Maximum Height1.75 ft
Turning Radius - Over Bucket*12.75 ft
Turning Radius - Inside Tire**6 ft
Width - Over Bucket*5.83 ft
Tire Gauge4.33 ft
Machine Width**5.58 ft
Articulation Angle40°
Steering Angle80°
Dump Angle at Maximum Height40°
Dimensions (Approximate) High Lift
Specification903
Overall Length - With Bucket*16.03 ft
Dig Depth6 in
Maximum Dump Height*8.16 ft
Load Over Height9.75 ft
Hinge Pin at Maximum Height10.58 ft
Overall Length - With Forks17.25 ft
Reach - Ground Level2.9 ft
Maximum Reach4.66 ft
Fork Depth Above Ground2 in
Fork Height at Maximum Reach4.66 ft
Maximum Fork Height10.4 ft
Fork Reach at Maximum Height1.8 ft
Turning Radius - Over Bucket*13.4 ft
Operating Specifications Standard Lift
Specification903
Tire Size33 × 15.5-16.5, 12 PR
Rated Bucket Capacity0.8 yd³ / 0.6 m³
Breakout Force6294 lbf
Rated Operating Load at Full Turn - Bucket***2,756 lb
Straight Tipping Load - Bucket***6,415 lb
Full Turn Static Tipping Load - Bucket (ISO 14397-1*)***5,516 lb
Full Turn Static Tipping Load - Bucket (Rigid Tire**)***5,626 lb
Rack Back - Transport Position51°
Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Firm and Level Ground, 500 mm [20 in] Load Center) (80% FTSTL)***3,393 lb
Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Rough Terrain, 500 mm [20 in] Load Center) (60% FTSTL)***2,544 lb
Operating Specifications High Lift
Specification903
Breakout Force6519 lbf
Operating Weight9,231 lb
Rated Operating Load at Full Turn - Bucket***2,553 lb
Straight Tipping Load - Bucket***5,975 lb
Full Turn Static Tipping Load - Bucket (ISO 14397-1*)***5,108 lb
Full Turn Static Tipping Load - Bucket (Rigid Tire**)***5,238 lb
Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Firm and Level Ground, 500 mm [20 in] Load Center) (80% FTSTL)***3,175 lb
Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Rough Terrain, 500 mm [20 in] Load Center) (60% FTSTL)***2,381 lb
Maximum Material Densities General Purpose
Specification903
Bucket TypeGeneral Purpose
Rated Capacity0.8 yd³ / 0.6 m³
Dump Height93 in
Maximum Material Density3,169 lb/yd³ / 1880 kg/m³
Bucket Width70 in
Maximum Material Densities Light Material
Specification903
Bucket TypeLight Material
Rated Capacity1.3 yd³ / 1 m³
Dump Height88 in
Maximum Material Density1,989 lb/yd³ / 1180 kg/m³
Bucket Width74 in
Sound Levels
Specification903
Interior Sound80.8 dB(A)
Exterior Sound99.8 dB(A)
Sustainability
Specification903
Recyclability95%
Ratios
Figure903
Engine horsepower per 1,000 lb of weight5.2
Fuel tank per engine horsepower0.24 gal
Reference directory classification
Equipment groupwheel loader
Where the 903 ranks in Cat's list — Scope of the captured comparison
BrandEquipment groupCompared entrySort order
Catwheel loader903Descending quantity; 1 is largest
Figure903RankLowest in lineHighest in line
Engine power48.0 hp52 of 5440.0 hp1,870.0 hp
Listed weight9,200 lb52 of 539,150 lb417,430 lb
Fuel capacity11.4 gal53 (tied) of 5411.4 gal1,505.0 gal
Horsepower per 1,000 lb5.2 hp18 of 502.8 hp6.7 hp
The 903 beside its neighbours
Base version903C903904H
Engine power40 hp48 hp52 hp
Weight9,150 lb9,200 lb9,899 lb
Pump flow903C: 14 gpm; 904H: 22 gpm
Fuel capacity11.4 gal11.4 gal (US)22 gal
Wheelbase5.9 ft6.42 ft6.24 ft
903: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment Forumswheel loaderCat and the 903. That is too few titles to say what owners mostly ask about, so the most recent are listed instead2
Used market for the 903 — Dated first-page listing snapshot
Observation dateListing sourceEquipment searchListings
2026-09-24MachineryTraderCat wheel loader25
ModelListedModel yearsLowest askingHighest askingMedian askingMedian hours
903252012 to 2025$20,000$85,000$65,9001,555
903: recall reference — Dated CPSC search
Search dateDatabaseNames queriedSearch result
2026-09-24U.S. Consumer Product Safety CommissionCat together with the wheel loader 903No matching recall in this search

Sources for this page

Evidence classDocument, classification and recorded date
Manufacturer
  • Manufacturer: Cat 903 — Caterpillar Inc.. Observed 2026-09-24.
Forum threads
Used-market listings
Federal agency data

Cat 903: Configuration records

903
SpecificationSource figure
Engine
Engine ModelCat C1.7*
Maximum Gross Power48 hp
Net Power @ 2,200 rpm - SAE J1349:201145 hp
Net Power @ 2,200 rpm - ISO 9249:200745 hp
Transmission and speeds
Travel Speed12.4 mph
Buckets
Bucket Capacities0.6-1 m3 (0.8-1.3 yd3)
Bucket Capacities - General Purpose0.6 m3 (0.8 yd3)
Bucket Capacities - Light Material1 m3 (1.3 yd3)
Hydraulic System
Main Relief3,336 psi
Hydraulic Cycle Time - Lower, Float2.3 s
Service Refill Capacities
Cooling System3 gal (US)
Fuel Tank11.4 gal (US)
Engine Oil1.6 gal (US)
Cab
ROPSISO 3471:2008
FOPSISO 3449:2005 Level I
Dimensions (Approximate) Standard Lift
Turning Radius - Inside Tire**6 ft
Width - Over Bucket*5.83 ft
Machine Width**5.58 ft
Steering Angle80°
Sound Levels
Interior Sound80.8 dB(A)
Exterior Sound99.8 dB(A)
Sustainability
Recyclability95%
Additional specifications
Displacement104 in²
Bore3.3 in
Stroke3.9 in
Operating Weight9,200 lb
Hydraulic Cycle Time - Dump0.7 s
Hydraulic Cycle Time - Lift4.5 s
Hydraulic System6.3 gal (US)
Cab Height8.25 ft
Ground Clearance10 in
Wheel Base6.42 ft
Overall Length - With Bucket*15.4 ft
Reach at Maximum Dump Height*2.33 ft
Dig Depth5 in
Maximum Dump Height*7.75 ft
Load Over Height9.25 ft
Hinge Pin at Maximum Height10.08 ft
Departure Angle - Degrees30°
Overall Length - With Forks16.83 ft
Reach - Ground Level2.5 ft
Maximum Reach4.33 ft
Fork Depth Above Ground3 in
Fork Height at Maximum Reach4.75 ft
Maximum Fork Height9.9 ft
Fork Reach at Maximum Height1.75 ft
Turning Radius - Over Bucket*12.75 ft
Tire Gauge4.33 ft
Articulation Angle40°
Dump Angle at Maximum Height40°
Tire Size33 × 15.5-16.5, 12 PR
Rated Bucket Capacity0.8 yd³ / 0.6 m³
Breakout Force6294 lbf
Rated Operating Load at Full Turn - Bucket***2,756 lb
Straight Tipping Load - Bucket***6,415 lb
Full Turn Static Tipping Load - Bucket (ISO 14397-1*)***5,516 lb
Full Turn Static Tipping Load - Bucket (Rigid Tire**)***5,626 lb
Rack Back - Transport Position51°
Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Firm and Level Ground, 500 mm [20 in] Load Center) (80% FTSTL)***3,393 lb
Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Rough Terrain, 500 mm [20 in] Load Center) (60% FTSTL)***2,544 lb
Bucket TypeGeneral Purpose
Rated Capacity0.8 yd³ / 0.6 m³
Dump Height93 in
Maximum Material Density3,169 lb/yd³ / 1880 kg/m³
Bucket Width70 in

Source

More in Cat: 904H, 902/904B, 906H/906H2/908H.