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AD45 Underground Articulated Truck

The Cat® AD45 Underground Truck delivers all the power, performance and reliability you expect from the AD45 — but the latest model also offers an an advanced EU Stage V compliant engine and aftertreatment solution that meets the strictest emissions standards, lowers your carbon footprint and improves air quality in your mine. In addition, a retrofit solution is available that allows you to retrofit the previous model, the AD45B, to meet the same strict standards. This ultra-clean diesel machine delivers superior productivity thanks to its ideal match with the next generation Cat R1700 underground loader and is technology-enhanced with features that improve productivity, boost uptime and keep operators and personnel safer on the job.


Engine Model

Cat® C18

Engine Power - EU Stage V Engine - ISO 14396:2002


Engine Power - Tier 3 Engine - ISO 14396:2002


Engine Power - VR Engine - ISO 14396:2002








Note (1)

Power ratings apply at a rated speed of 2,000 rpm when tested under the reference conditions for the specified standard.

Note (2)

All rating conditions are based on ISO/TR14396:2002, inlet air standard conditions with a total barometric pressure of 100 kPa (29.5 in Hg), with a vapor pressure of 1 kPa (0.295 in Hg), and 25° C (77° F). Performance measured using fuel to EPA specificat

Note (3)

Minimal engine derating* required up to 3048 m (10,000 ft) @ rated speed for Stage V engines, 2700 m (8,858 ft) for Tier 3/Stage IIIA equivalent engines and 3505 m (11,500 ft) for Tier 2/Stage II equivalent VR engines.

Note (4)

Optional Ventilation Reduction Package available.

Note (5)

Optional engine with emissions equivalent to Tier 3 and Stage IIIA is also available.

Note (6)

Optional engine available that meets U.S. EPA Tier 4 Final and EU Stage V emission standards.

Note (7)

*<5 %

Operating Specifications

Nominal Payload Capacity


Gross Machine Mass


Shipping Mass (Stage V Engine Model)


Shipping Mass (Other Engine Models)


Body Capacities

18.0-25.1 m³ (23.5-32.8 yd³)

Weights (Stage V Engine Model)

Operating Mass


Operating Mass - Front Axle


Operating Mass - Rear Axle


Operating Mass + Rated Payload


Operating Mass + Rated Payload - Front Axle


Operating Mass + Rated Payload - Rear Axle


Weights (Other Engine Models)

Operating Mass


Operating Mass - Front Axle


Operating Mass - Rear Axle


Operating Mass + Rated Payload


Operating Mass + Rated Payload - Front Axle


Operating Mass + Rated Payload - Rear Axle


Weight Distribution (Stage V Engine Model)

Empty - Front Axle


Empty - Rear Axle


Loaded - Front Axle


Loaded - Rear Axle


Weight Distribution (Other Engine Models)

Empty - Front Axle


Empty - Rear Axle


Loaded - Front Axle


Loaded - Rear Axle


Body Hoist (Stage V Engine Model)


15 Seconds


21 Seconds

Total Cycle Time

36 Seconds

Body Hoist (Other Engine Models)


14 Seconds


21 Seconds

Total Cycle Time

35 Seconds

Body Capacities

Dump Body - 1


Dump Body - 2 - Standard


Dump Body - 3


Ejector Body



Heaped SAE 2:1.

Turning Dimensions

Outside Clearance Radius*


Inside Clearance Radius*


Frame Oscillation


Articulation Angle



*Clearance dimensions are for reference only.


Forward - 1


Forward - 2


Forward - 3


Forward - 4


Forward - 5


Forward - 6


Forward - 7


Reverse - 1


Reverse - 2



Maximum travel speeds with standard 29.5 × R29 tires.

Service Refill Capacities

Engine Crankcase - With Filter

16.9gal (US)


15.9gal (US)

Hydraulic Tank

70.3gal (US)

Cooling System

22.5gal (US)

Front Differential and Final Drives

20.3gal (US)

Rear Differential and Final Drives

21.9gal (US)

Fuel Tank

201.8gal (US)


Tire Size

29.5 × R29



ROPS/FOPS Certified Cab

Final Drives

Differential Ratio


Final Drive Ratio


Total Reduction Ratio


Standard Equipment:

  • Electrical
    • 12V power supply in cab
    • Alternator, 95-amp
    • Auxiliary start receptacle
    • Battery disconnect switch, ground level
    • Circuit breaker, 80-amp
    • Corrosive protection spray
    • Diagnostic connector
    • Electric starting, 24V
    • Engine shutdown switch, ground level
      – Front left hand side
    • Lighting
      – Headlights with dimmer switch, LED
      – Brake and tail lights
      – Rear work light (cab mounted), LED
      – Reversing lights, LED
    • Low maintenance batteries
    • Reversing alarm
    • Starting and charging system
  • Operator Environment
    • Cat Electronic Monitoring System (Cat EMS)
    • Electric horns
    • 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
    • Low hydraulic level warning
    • Open operator station ROPS/FOPS structure
    • Operator presence system (auto park brake)
    • Rearview mirrors
    • Suspension seat Cat Comfort TLV2 with retractable seat belt
    • Trainer/passenger seat and seat belt
    • Tilt/telescopic steering wheel
    • Turn signal indicators
  • Power Train
    • Cat C18 ATAAC diesel engine, 6-cylinder
    • Automatic brake retarder control
    • Auto shift transmission 7 speed forward/2 speed reverse
    • Control throttle shifting
    • Engine air intake precleaner
    • Electric fuel priming pump
    • Exhaust, turbo compartment shielding
    • Four wheel drive
    • Long life coolant
    • Programmable ground speed limiting
    • Programmable gear block out with tray up
    • Radiator cap manual release
    • Radiator, cross flow
    • SAFR full hydraulic enclosed wet, multiple-disc brakes, oil cooled
    • Torque converter, standard with automatic lockup
  • Other Standard Equipment
    • Body, dump, (21.3 m³, 27.9 yd³)
    • Catalytic exhaust purifier/muffler group
    • Centralized lubrication points
    • Decals, international picto graphics
    • Dual fuel tanks
    • Engine and transmission belly guards
    • Fenders, front, rear flaps
    • Fire wall
    • Fuel system manual shut off tap
    • Front axle suspension
    • Frame lifting lugs
    • Front and rear tow pin
    • Front rubber bumpers
    • Gauges, brake pressure
    • Hand hold (access on/off top deck)
    • Hitch, articulated and oscillated
    • Operation and Maintenance Manual – English and other applicable local languages to select
    • S·O·S port
      – Coolant
      – Engine oil
      – Hydraulic oil
      – Transmission oil
    • Swing out radiator grill
    • Tires and rims: A tire must be selected from the mandatory attachments section of the machine price list. Base machine price includes a standard tubeless rim allowance only.

Optional Equipment:

  • Optional Equipment
    • Battery shutdown
      – Ground level isolation, in cab isolation switch
      – Ground level isolation, engine shutdown switch
      – Ground level isolation, in cab isolation, engine shutdown switch
    • Body dump
      – Body (18.0 m³, 23.5 yd³)
      – Body (25.1 m³, 32.8 yd³)
    • Body ejector
      – Ejector (22.9 m³, 30.0 yd³)
    • Body liners, impact and/or wear
      – 10 mm (0.4"), body, dump (18.0 m³, 23.5 yd³)
      – 10 mm (0.4"), body, dump (21.3 m³, 27.9 yd³)
      – 10 mm (0.4"), body, dump (25.1 m³, 32.8 yd³)
      – 10 mm (0.4"), body, ejector (22.9 m³, 30.0 yd³)
    • Body wear plate, external
      – 16 mm (0.62"), body, dump (18.0 m³, 23.5 yd³)
      – 16 mm (0.62"), body, dump (21.3 m³, 27.9 yd³)
      – 16 mm (0.62"), body, dump (25.1 m³, 32.8 yd³)
    • Camera
      – Color rear facing
      – Color loading
    • Cover, anti vandalism for shipping
    • Engine options
      – Engine, Stage V
      – Engine, Ventilation Reduction (VR)
      – Equivalent to Tier 3
      – After-treatment options (for use with VR Engine only)
    • DPF (Flow Through) Filter
    • Fast fill system
      – Coolant
      – Engine oil
      – Fuel (dual tanks)
      – Hydraulic oil
      – Transmission oil
    • Fire suppression system
      – Ansul, wet
    • Fluids
      – Arctic fuel
      – Arctic coolant
    • Handrail Extension
    • Lubrication system
      – Automatic, dump or ejector body
      – Centralized, ejector body
    • Mine transfer
      – Mine transfer ready front frame (tack welded)
      – Mine transfer ready dump body (tack welded)
      – Mine transfer ready ejector body (tack welded)
    • Operators station ROPS/FOPS enclosed
      – Air conditioning
      – Cab pressurizer and filter
      – Dome light
      – Heater
      – Radio ready compartment for radio and speakers
      – Sun visor
      – Window, sliding cab door
    • Park brake switch engagement
      – Push to apply
      – Pull to apply
    • Payload
      – Truck Payload Measurement System (TPMS)
    • Reflective tape
    • Rims
      – Rim identification numbering
      – Spare, tubeless
    • Seat
      – Suspension seat Cat Comfort TLV2, vinyl
      – Suspension seat tee, mechanical
    • Seat cover
      – Tee and Cat Comfort TLV2
      – Seat cover, companion
    • Secondary steering system
    • Service tools
      – Collet jacking bolts, dump or ejector
      – Diagnostics box
      – Hoist cylinder supports (for body removal)
      – Brake wear gauge
      – Reference parts manual for additional tooling available
    • Switches
      – Engine shutdown, fire suppression activation
      – Idle timer
      – Engine shutdown, fire suppression activation/idle timer
    • Technology
      – Product Link Elite (PLE) system
    • Tire arrangements
      – Tire, 29.5 × R29 VSNT Bridgestone
      – Tire, 29.5 × R29 VSDL Bridgestone
    • Torque converter, high altitude, 3000 m (9,842 ft) and up
    • NOTE: Not all features are available in all regions. See your Cat dealer for more information.

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