Contents
Dimensions
| CAT AD45B | 307-1156 Dump Body |
267-5319 Dump Body |
351-1482 Ejector Body |
|---|---|---|---|
| 1. Height to Top of Empty Body | 111.5 in (2831 mm) | 119.5 in (3036 mm) | 136.3 in (3463 mm) |
| 2. Height to Top of ROPS | 110.9 in (2817 mm) | 110.9 in (2817 mm) | 110.9 in (2817 mm) |
| 3. Body Loading Height | 107.1 in (2720 mm) | 115.2 in (2925 mm) | 125.2 in (3179 mm) |
| 4. Dump Clearance | 26.2 in (665 mm) | 26.2 in (665 mm) | 39.4 in (1001 mm) |
| 5. Height to Top of Raised Body | 236.7 in (6012 mm) | 250.3 in (6357 mm) | — |
| 6. Ground Clearance | 17.4 in (441 mm) | 17.4 in (441 mm) | 17.4 in (441 mm) |
| 7. Height to Top of Load (SAE 2:1) | 142.1 in (3610 mm) | 143.9 in (3655 mm) | 145.9 in (3705 mm) |
| 8. Maximum Overall Length | 455.2 in (11561 mm) | 457.6 in (11622 mm) | 455.2 in (11561 mm) |
| 9. Overall Body Down Length | 440.7 in (11194 mm) | 440.7 in (11194 mm) | 440.7 in (11194 mm) |
| 10. Front Axle to Front Bumper | 146.4 in (3718 mm) | 146.4 in (3718 mm) | 146.4 in (3718 mm) |
| 11. Front Axle to Hitch | 75.6 in (1920 mm) | 75.6 in (1920 mm) | 75.6 in (1920 mm) |
| 12. Wheelbase | 219.3 in (5570 mm) | 219.3 in (5570 mm) | 219.3 in (5570 mm) |
| 13. Rear Axle to Tail | 75.0 in (1906 mm) | 75.0 in (1906 mm) | 79.4 in (2017 mm) |
| 14. Rear Wheel to Raised Body | 49.9 in (1268 mm) | 49.9 in (1268 mm) | 37.2 in (946 mm) |
| 15. Overall Width over Tires | 118.1 in (3000 mm) | 118.1 in (3000 mm) | 118.1 in (3000 mm) |
| 16. Machine Width with Body | 118.1 in (3000 mm) | 118.1 in (3000 mm) | 126.0 in (3200 mm) |
| 17. Machine Width without Body | 118.1 in (3000 mm) | 118.1 in (3000 mm) | 118.1 in (3000 mm) |
| 18. Recommended Clearance Width | 177.2 in (4500 mm) | 177.2 in (4500 mm) | 177.2 in (4500 mm) |
| 19. Recommended Clearance Height | 177.2 in (4500 mm) | 177.2 in (4500 mm) | 177.2 in (4500 mm) |

Turning Dimensions
| Outside Clearance Radius | 365.8 in (9291 mm) |
| Inside Clearance Radius | 209 in (5310 mm) |
| Frame Oscillation | 10º |
| Articulation Angle | 42.5º |

Dump System
| Nominal Payload Capacity | 99208 lb (45000 kg) |
| Body Capacity, Heaped (Cat 307-1156) | 23.5 yd3 (18.0 m3) |
| Body Capacity, Heaped (Cat 267-5319 Standard) | 27.9 yd3 (21.3 m3) |
| Body Capacity, Heaped (Cat 275-0710) | 32.8 yd3 (25.1 m3) |
| Body Capacity, Heaped (Cat 351-1482 Ejector) | 29.9 yd3 (22.9 m3) |
| Body Hoist Raise Time | 16 sec |
| Body Hoist Lower Time | 21 sec |
| Body Hoist Total Cycle | 37 sec |

Weights
| CAT AD45B | Empty | Loaded |
|---|---|---|
| Operating Weight | 88184 lb (40000 kg) | 187393 lb (85000 kg) |
| Front Axle Load | 60847 lb (27600 kg) | 85451 lb (38760 kg) |
| Rear Axle Load | 27337 lb (12400 kg) | 101942 lb (46240 kg) |
| Front Axle Weight Distribution | 69% | 45.6% |
| Rear Axle Weight Distribution | 31% | 54.4% |
Engine Details
| Number of Cylinders | 6 |
| Engine Make | Caterpillar |
| Engine Model | CAT C18 ACERT |
| Displacement | 1104.6 cu in (18.1 L) |
| Bore | 5.7 in (145 mm) |
| Stroke | 7.2 in (183 mm) |
| Gross Power (VR Engine) | 587 hp (438 kw) |
| Power Measured @ (VR Engine) | 1800 rpm |
| Gross Power (Tier 3 Engine) | 556 hp (408 kw) |
| Power Measured @ (Tier 3 Engine) | 2000 rpm |
| Aspiration | Turbocharged Aftercooled (ATAAC) |
| Emission Standards | US EPA Tier 3 + EU Stage IIIA + China Nonroad III |

Transmission
| Type | Auto shift transmission |
| Number of Gears | 7F / 2R |
| Max Travel Speed | 32.3 mph (52 km/h) |
| Differential Ratio | 3.46:1 |
| Final Drive Ratio | 5.65:1 |
| Total Reduction Ratio | 19.55:1 |
| Service Brakes | SAFR full hydraulic enclosed wet, oil cooled, multiple-disc brakes |
| Parking Brake | Automatically engages parking brake, neutralizes steering, implement and transmission control |

Operational Specs
| Max Operating Weight | 187393 lb (85000 kg) |
| Nominal Payload Capacity | 99208 lb (45000 kg) |
| Operating Voltage | 24 V |
| Alternator | 95 amps |
| Battery | 2x 12 V, 200 Ah, CCA 1400, 4D BCI heavy-duty |
| Tire Size | 29.5 x R29 |

Cab
| FOPS | ISO 3449, SAE J231, AS2294.3, EN13627 |
| ROPS | ISO 3471, SAE J1040, AS2294.2, EN13510 |
| Operator Seat | Suspension seat Cat Comfort TLV2 with retractable seat belt |
| Gauges | Engine coolant temperature; Transmission coolant temperature; Hydraulic oil temperature; Fuel level; Speedometer; Tachometer |
| Indicator Lights | Alert warning light; Body up position warning; High beam; Residual brake pressure warning; Retarder application; Turn signal |
| Lighting | Brake and tail light, LED; Headlights with dimmer switch, halogen; Rear work light (cab mounted), halogen; Reversing lights, halogen |

Service Refill Capacities
| Fuel Tank Capacity | 201.8 gal (764 L) |
| Engine Oil Capacity | 16.9 gal (64 L) |
| Cooling System Capacity | 22.5 gal (85 L) |
| Transmission Oil Capacity | 15.9 gal (60 L) |
| Front Differentials and Final Drives | 20.3 gal (77 L) |
| Rear Differentials and Final Drives | 21.9 gal (83 L) |
| Hydraulic Tank Capacity | 70.3 gal (266 L) |
The CAT AD45B Underground Truck is a high-performance hauling solution engineered specifically for demanding underground mining applications. Designed with power, durability, and operator safety in mind, the AD45B combines a robust Cat powertrain with advanced ergonomics and serviceability features. Its 45-ton (99208 lb) payload capacity, low-profile design, and superior maneuverability make it ideal for high-production underground environments with tight tunnel constraints. With efficient fuel usage, rugged structural integrity, and compatibility with a range of Cat underground loaders and support equipment, the AD45B delivers reliable productivity and cost-effective performance shift after shift.