903 Compact Wheel Loader

Overview

The Cat^® 903 is compact, yet powerful, delivering high performance with outstanding versatility. The all new C1.7 engine provides better all-around performance. Features such as engine and ground speed control, provides customizable control when running hydromechanical work tools. With an ergonomic cab, multi-function joystick, and optional ride control, the 903 allows the operator to enjoy all day comfort.

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Specifications

Maximum Gross Power	48 hp
Engine Model	Cat C1.7*
Net Power @ 2,200 rpm - SAE J1349:2011	45 hp
Net Power @ 2,200 rpm - ISO 9249:2007	45 hp
Bore	3.3 in
Stroke	3.9 in
Displacement	104 in²
Note (1)	Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2)	Net power advertised is the power available at the flywheel.
Note	*Engine meets U.S. EPA Tier 4 Final emission standards.

Operating Weight	9200 lb

Bucket Capacities	0.6-1.0 m3 (0.8-1.3 yd3)
Bucket Capacities - General Purpose	0.6 m3 (0.8 yd3)
Bucket Capacities - Light Material	1.0 m3 (1.3 yd3)

Travel Speed	12.4 mile/h

Main Relief	3336 psi
3rd Auxiliary Flow	14.1 gpm
Hydraulic Cycle Time - Lift	4.5 s
Hydraulic Cycle Time - Dump	0.7 s
Hydraulic Cycle Time - Lower, Float	2.3 s

ROPS	ISO 3471:2008
FOPS	ISO 3449:2005 Level I

Cooling System	3 gal (US)
Fuel Tank	11.4 gal (US)
Hydraulic System	6.3 gal (US)
Engine Oil	1.6 gal (US)

Cab Height	8.25 ft
Ground Clearance	10 in
Wheel Base	6.42 ft
Overall Length - With Bucket*	15.4 ft
Reach at Maximum Dump Height*	2.33 ft
Dig Depth	5 in
Maximum Dump Height*	7.75 ft
Load Over Height	9.25 ft
Hinge Pin at Maximum Height	10.08 ft
Departure Angle - Degrees	30°
Overall Length - With Forks	16.83 ft
Reach - Ground Level	2.5 ft
Maximum Reach	4.33 ft
Fork Depth Above Ground	3 in
Fork Height at Maximum Reach	4.75 ft
Maximum Fork Height	9.9 ft
Fork Reach at Maximum Height	1.75 ft
Turning Radius - Over Bucket*	12.75 ft
Turning Radius - Inside Tire**	6 ft
Width - Over Bucket*	5.83 ft
Tire Gauge	4.33 ft
Machine Width**	5.58 ft
Articulation Angle	40°
Steering Angle	80°
Dump Angle at Maximum Height	40°
Note (1)	*Vary with bucket size.
Note (2)	**Vary with tire size.
Note (3)	Dimensions listed are based on a machine configured with cab, air conditioning, remote quick coupler, general purpose bucket or 1067 mm (42 in) forks, 75 kg (165 lb) operator, 33 × 15.5-16.5, 12 PR tires, without ride control, without precleaner.

Cab Height	8.25 ft
Ground Clearance	10 in
Wheel Base	6.42 ft
Overall Length - With Bucket*	16.03 ft
Reach at Maximum Dump Height*	2.33 ft
Dig Depth	6 in
Maximum Dump Height*	8.16 ft
Load Over Height	9.75 ft
Hinge Pin at Maximum Height	10.58 ft
Departure Angle - Degrees	30°
Overall Length - With Forks	17.25 ft
Reach - Ground Level	2.9 ft
Maximum Reach	4.66 ft
Fork Depth Above Ground	2 in
Fork Height at Maximum Reach	4.66 ft
Maximum Fork Height	10.4 ft
Fork Reach at Maximum Height	1.8 ft
Turning Radius - Over Bucket*	13.4 ft
Turning Radius - Inside Tire**	6 ft
Width - Over Bucket*	5.83 ft
Tire Gauge	4.33 ft
Machine Width**	5.58 ft
Articulation Angle	40°
Steering Angle	80°
Dump Angle at Maximum Height	40°
Note (1)	*Vary with bucket size.
Note (2)	**Vary with tire size.
Note (3)	Dimensions listed are based on a machine configured with cab, air conditioning, remote quick coupler, general purpose bucket or 1067 mm (42 in) forks, 75 kg (165 lb) operator, 33 × 15.5-16.5, 12 PR tires, without ride control, without precleaner.

Tire Size	33 × 15.5-16.5, 12 PR
Rated Bucket Capacity	0.8 yd³
Breakout Force	6294 lbf
Operating Weight	9200 lb
Rated Operating Load at Full Turn - Bucket***	2756 lb
Straight Tipping Load - Bucket***	6415 lb
Full Turn Static Tipping Load - Bucket (ISO 14397-1)**	5516 lb
Full Turn Static Tipping Load - Bucket (Rigid Tire)*	5626 lb
Rack Back - Transport Position	51°
Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Firm and Level Ground, 500 mm [20 in] Load Center) (80% FTSTL)***	3393 lb
Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Rough Terrain, 500 mm [20 in] Load Center) (60% FTSTL)***	2544 lb
Note (1)	*Full compliance to ISO 14397-1 (2007) Sections 1 thru 6, which requires 2% verification be-tween calculation and testing.
Note (2)	**Compliance to ISO 14397-1 (2007) Sections 1 thru 5.
Note (3)	***Manual quick coupler, precleaner hood.
Note (4)	Operating specifications shown are based on machine equipped with enclosed ROPS cab with air conditioning, remote quick coupler, 75 kg (165 lb) operator and general purpose bucket (GP), without ride control, without precleaner unless otherwise noted.

Tire Size	33 × 15.5-16.5, 12 PR
Rated Bucket Capacity	0.8 yd³
Breakout Force	6519 lbf
Operating Weight	9231 lb
Rated Operating Load at Full Turn - Bucket***	2553 lb
Straight Tipping Load - Bucket***	5975 lb
Full Turn Static Tipping Load - Bucket (ISO 14397-1)**	5108 lb
Full Turn Static Tipping Load - Bucket (Rigid Tire)*	5238 lb
Rack Back - Transport Position	51°
Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Firm and Level Ground, 500 mm [20 in] Load Center) (80% FTSTL)***	3175 lb
Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Rough Terrain, 500 mm [20 in] Load Center) (60% FTSTL)***	2381 lb
Note (1)	*Full compliance to ISO 14397-1 (2007) Sections 1 thru 6, which requires 2% verification be-tween calculation and testing.
Note (2)	**Compliance to ISO 14397-1 (2007) Sections 1 thru 5.
Note (3)	***Manual quick coupler, precleaner hood.
Note (4)	Operating specifications shown are based on machine equipped with enclosed ROPS cab with air conditioning, remote quick coupler, 75 kg (165 lb) operator and general purpose bucket (GP), without ride control, without precleaner unless otherwise noted.

Bucket Type	General Purpose
Rated Capacity	0.8 yd³
Dump Height	93 in
Maximum Material Density	3169 lb/yd³
Bucket Width	70 in
Note	Based on ISO 7546:1983 and rated operating loads at full turn and standard linkage.

Bucket Type	Light Material
Rated Capacity	1.3 yd³
Dump Height	88 in
Maximum Material Density	1989 lb/yd³
Bucket Width	74 in
Note	Based on ISO 7546:1983 and rated operating loads at full turn and standard linkage.