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.