Features of Mack Defense’s Granite Wrecker
The Mack® Granite® Wrecker is a rugged and reliable truck. It features a fuel-efficient, 13-liter Mack MP8 engine that delivers plenty of horsepowers (440 HP), plus great low-end torque (up to 1,660 lb.-ft.) to provide you with the muscle to conquer any challenge and the endurance to work all day long. It is built on the proven Mack Cornerstone™ chassis that delivers rock-solid performance as it provides a constant frame rail height and sits high off the ground for maximum ground clearance over rough terrain.
WEIGHTS / DIMENSIONS
- GVW: 72,000 lbs
Wheel Configuration: 6×4 - Frame: 11.1 mm x 300 mm x 90 mm with steel reinforcement section
- Wheelbase: 241″
- Platform: 257″
- Overhang: 82″
POWERTRAIN
- Type: 13 Liter, MP8 440 MaxiCruise®
- Max Power: 440 HP (330 kW)
- Max Torque: 1,660 lb.-ft. (2250 Nm)
- Engine Brake: Mack® PowerLeash™
Fan Drive: Behr electronic modulating - Air System: Meritor/Wabco air dryer
- Starter: 12V, gear reduction
- Batteries (3): Mack 12V, 650 cold cranking amps (CCA)
- Alternator: 12V, 160A, brush type
DRIVELINE / TRANSMISSION
- Driveline: Meritor® Heavy Duty
- Transmission: Allison® 4500 RDS Gen4 with prognostics, 6-speed
- Clutch: Eaton-Fuller CL7981, 15.5″ (39.4 cm), manual adjust
- Brakes: Meritor “S” Cam Q-Plus, 16.5×6 Cam-front, Meritor Heavy Duty Q-Plus, 16.5×7 Cam-rear
- ABS System: Bendix® 4S/4M
Front/rear Tires: Michelin® XZUS, 315/80R22.5 (all position)
AXLES/SUSPENSION
- Front Axle: Mack FXL20 (wide pivot center)
- Axle Rating: 20,000 lb. (9,100 kg) rating
- Front Suspension: Taperleaf spring suspension, axle-back position
Rear Axle: Raydan AL520 Air Link™, 52,000 lb. (23,587 kg) rating - Carrier Ratio: 5.95
- Rear Suspension: Air Ride Walking Beam™
CAB/CHASSIS
- Driver Seat: Air Bostrom® Talladega 915 (mid-back)
- Passenger Seat: Mack Fixed (mid-back)
- Mirrors (side): Aerodynamic body colored, heated, motorized
- Spare Tire: Spare tire/carrier on RH frame rail
- Left Side Fuel Capacity: 50 gal. (189 L), steel
- Right Side Fuel Capacity: 50 gal. (189 L), steel
- Electronics: V-MAC® IV routine maintenance monitoring system, BodyLink™ II interface
Source: Mack Defense, 18th May 2023
