Dimensions
Overall Length |
449.4 in (11429 mm) |
Standard Wheel Base (SWB) |
180.7 in (4590 mm) |
Long Wheel Base (LWB) |
228.4 in (5801 mm) |
Height to Top of Cab w/ ROPS |
147.4 in (3746 mm) |
Height to Top of Exhaust |
159.1 in (4041 mm) |
Ground Clearance |
22.8 in (579 mm) |
Width over Tire Bulge |
139.0 in (3530 mm) |
Track Width |
105.7 in (2687 mm) |
Front Axle Center to Machine Front, SWB |
133.9 in (3415 mm) |
Rear Axle Center to Body Rear, SWB |
56.9 in (1458 mm) |
Mid Axle to Rear Axle Center, SWB |
77.4 in (1966 mm) |

CAT 745C OEM articulated truck bare chassis (SWB or LWB) are rugged and reliable platforms:
- Water truck applications in both mining and construction projects. Using an articulated truck bare chassis provides a flexible solution that is ideal for dust suppression, road construction, fire protection, and other applications.
- Rugged and reliable platforms for forestry applications. Using an articulated truck bare chassis provides a flexible solution that is ideal for hauling logs and other forestry applications.
- Using an OEM bare chassis provides a flexible solution that is ideal for hauling coal or waste, container trucks or hooklifts, cable reel trucks, and other applications.
- Service truck applications in both mining and construction projects for delivering fuel and preventive maintenance lubrication to your site’s machine fleet.
Caterpillar works with OEMs worldwide to match various size service tanks with our bare chassis machines, all through your local Cat dealer, to provide the best solution for your business.

Steering System
Steer Angle (left/right) |
45° |
Lock to Lock Steering |
4.8 sec @ 60 rpm |
Steering Standard |
ISO 5010 2007 |
Secondary Steering |
Electro-hydraulic secondary steering system automatically activates in forward/reverse or when stationary if low pressure is sensed |
Steering Wheel |
Tilt and telescopic steering wheel |
Clearance Radius |
358 in (9082 mm) |
SAE Turning Radius |
340 in (8624 mm) |
Inside Radius |
174 in (4413 mm) |
Aisle Width |
235 in (5961 mm) |
Articulating Hitch |
The articulating hitch provides the truck with steering articulation, and the oscillation ensures all-wheel ground contact in rough terrain |
Tire Size (Standard) |
29.5R25 |
Tire Size (Optional) |
29.5R29 or 875/65R29 |
Engine Details
Engine Model |
Cat C18 ACERT Tier 2 |
Cat C18 ACERT Tier 4F |
Number of Cylinders |
6 |
6 |
Displacement |
1104.5 cu in (18.1 L) |
1104.5 cu in (18.1 L) |
Bore |
5.7 in (145 mm) |
5.7 in (145 mm) |
Stroke |
7.2 in (183 mm) |
7.2 in (183 mm) |
Gross Power |
511 hp (381 kw) |
511 hp (381 kw) |
Net Power |
496 hp (370 kw) |
496 hp (370 kw) |
Power Measured @ |
1700 rpm |
1700 rpm |
Peak Torque |
1931 lb ft (2618 Nm) |
1931 lb ft (2618 Nm) |
Torque Measured @ |
1200 rpm |
1200 rpm |
Fuel System |
MEUI injection |
Direct injection (MEUI-C Injector) |
Aspiration |
Turbocharged Aftercooled |
Turbocharged Aftercooled |
Aftertreatment |
N/A |
DEF, NRS, SCR |
Emission Standards |
US EPA Tier 2 + EU Stage II |
US EPA Tier 4 Final + EU Stage IV |

Operational Specs
Rated Payload |
90389 lb (41000 kg) |
Operating Voltage |
24 V |
Alternator |
105 amps |
Battery |
2x 12 V, 90 Ah, CCA 1000, RC: 170 min, 31 BCI |
Starter |
24 V, Pinion Teeth: 11/12 |
Lighting System |
Cab interior, front, width marker, side, rear, 2x reversing/work light, 2x stop/tail lights, front and rear direction indicators |

Operator Environment
Operator Station |
2-Person Cab with air conditioning system |
Operator Seat |
Fully adjustable, air suspension seat with adjustable lumbar settings |
Passenger Seat |
Adjustable passenger seat |
Seat Belt |
3 in (76.2 mm) wide seat belts for operator/trainer and passenger |
HVAC |
Air conditioning + Heater and defroster with 4-speed fan + Adjustable air vents |
FOPS |
ISO 3449 2005 Level II |
ROPS |
ISO 3471 1994 |
Display |
The dash mounted Color Multi Purpose Display (CMPD) |
Sound Level (Interior) |
79 dB(A) |
Transmission
Type |
High Density Power Shift transmission (HDPS) |
Number of Gears |
9F / 2 R |
Max Forward Speed |
34 mph (54.8 km/h) |
Max Reverse Speed |
9.1 mph (14.6 km/h) |
Torque Converter |
Larger diameter torque converter, configured for off highway applications |
Drive |
Three axle, 6-wheel drive |
Service Brakes |
Dual-circuit, all wheel braking system. The full power hydraulic system actuates enclosed, oil immersed, multi plate brakes with independent front and rear circuits and accumulators |
Parking Brake |
Located on the center axle in an elevated position, it is spring applied and hydraulically released |

Service Refill Capacities
Fuel Tank Capacity |
145.3 gal (550 L) |
DEF Tank Capacity (Tier 4 engine only) |
6.6 gal (25 L) |
Engine Oil Capacity (w/ filter) |
13.7 gal (52 L) |
Cooling System Capacity |
23.7 gal (90 L) |
Transmission Oil Capacity |
19.8 gal (75 L) |
Hydraulic System Capacity |
36.9 gal (140 L) |
Axle Fluid Capacity (each) |
15.8 gal (60 L) |
Final Drives Capacity (each) |
1.3 gal (5 L) |
Brake Cooling Tank Capacity |
17.7 gal (67 L) |