Navistar MaxxPro
The MaxxPro is a Category I MRAP vehicle with a V-shape hull design coupled with armor and other survivability features. Like other MRAP vehicles, MaxxPro seeks to provide troops with an increased level of protection against small arms fire, RPGs, mineblasts, improvised explosive devices (IEDs), and other hazards when compared to the up-armored HMMWV. As the MRAP program has evolved, the Navistar MaxxPro vehicles, in multiple models, have become the volume production leader among all the MRAP variants.
MaxxPro is produced by International Military and Government LLC (IMG), also called Navistar Defense, LLC, wholly owned affiliates of Navistar International Corporation.
MaxxPro Dash, a smaller, lighter weight version of the MaxxPro optimized for Afghanistan operations. Photo: Navistar Defense, LLC
MaxxPro Mine Resistant Utility Vehicle (MRUV)
Under the accelerated MRAP program, in May and July 2007 Marine Corps Systems Command awarded contracts for a total of 1,944 MaxxPro vehicles, due by February 2008 at a cost of $1.045 billion. Although MaxxPro has not been tested in combat (as has the Joint EOD Rapid Response Vehicle (JERRV), Buffalo Mine Protected Clearance Vehicle, and others in the MRAP program), the MaxxPro order was the largest one placed up to that time, in recognition of the large production capacity of the vendor. MaxxPro maintained the leading position with additional orders in 2008 and 2010.
As is evident in the photos, the MaxxPro Category I vehicle was produced in several body styles during the prototype phase. MaxxPro prototype vehicles passed rigorous testing at Aberdeen Proving Ground, MD, prior to the 2007 orders. Orders increased to meet demand for IED protection in Iraq and Afghanistan leading to a dominant position for Navistar due to their capacity for large scale production. In addition to the original MaxPro model, these other models have been procured by the U.S. military:
- MaxxPro Plus: The MaxxPro Plus utilizes the best of the original MaxxPro MRAP vehicle and incorporates enhancements to performance and survivability, including increased payload and additional engine power. Many commonalities exist across the MaxxPro platform to maximize troop interface, training and maintenance.
- MaxxPro Dash: The MaxxPro Dash maintains the survivability system used on all MaxxPro MRAP variants while also allowing for greater mobility in a smaller, lighter weight vehicle optimized for Afghanistan operations. A smaller turning radius and higher torque to weight ratio are among the improvements to mobility. MaxxPro Dash is also capable of accommodating additional up-armoring. Supportability and maintainability are maximized with a high-degree of commonality of parts among all MaxxPro variants.
- MaxxPro Ambulance: The MaxxPro Ambulance vehicle utilizes all the features of the MaxxPro Plus. The interior of the vehicle is configured to accommodate wounded soldiers rather than carry troops and has the area to carry all the associated medical equipment necessary.
The MaxxPro Air Force is another model listed for procurement. MaxxPro MEAP (MRAP Expedient Armor Program ) offers increased protection among the MRAP vehicles.
MaxxPro Mine Resistant Utility Vehicle (MRUV) Specifications
The following tables refer to both the MaxxPro and MaxxPro XL MRAP vehicles:
| Length |
240" to 264" |
| Width |
99" |
| Height |
115" |
| Wheel Base |
153" to 176" |
| Ground Clearance (Center of Vehicle) |
16.5" |
| Ground Clearance (Differential Clearance) |
14.4" |
| Angle of Approach |
58° |
| Angle of Departure |
46° to 48° |
| Gradeability |
70% low range |
| Side Slope |
30% |
| Mass Tare (GVM) |
27,850 to 29,850 lbs. |
| Payload |
3,650 to 11,150 lbs. |
| GVWR |
31,500 to 39,000 lbs. |
| Seating |
2-man crew plus 4 to 10 passengers |
| Configuration |
4x4 |
| Turning Circle |
50' to 58' |
| Make |
International® I6 Diesel |
| Type |
Turbo inter-cooled, direct electronic injection, four stroke |
| Displacement |
8.7 L (530 ci) |
| Emission Standard |
EPA 2005 |
| Maximum Power |
330 hp @ 2,100 rpm |
| Power/Mass Ratio |
18.9 to 20 hp/US ton |
| Maximum Torque |
1,150 ft.-lbs. @ 2,100 rpm |
| Batteries |
2 x 12-volt Batteries |
| Alternator |
400 amps |
| Lighting |
Service headlamps and Blackout lights |
| Electrical System |
Diamond Logic® |
| Transmission |
Allison 3000 5-Speed Automatic |
| Transfer Case |
4 x 4 Two-Speed |
| Steering Type |
Hydraulically assisted recirculating ball |
| Front Axle |
16,000 lbs to 21,000 lbs Drive/Steer |
| Rear Axle |
21,000 lbs to 30,000 lbs Drive |
| Springs |
Semi-elliptical leaf springs |
| Shock Absorbers |
Double acting telescopic hydraulic |
| Service Brakes |
Full air brakes with ABS and traction control |
| Parking Brakes |
Air-activated, hand-operated, rear axle brakes |
| Fording Depth |
36" Without Preparation |
| Wheels and tires |
Rims: 10" x 20" Tires: 395/85R20 |
| Run Flats |
Optional |
Manuals for the MaxxPro MRAP vehicles include:
- TM 9-2355-106-10 MaxxPro CAT I
- TM 9-2355-318-10 MaxxPro
- TM 9-2355-324-10 MaxxPro Dash
MaxxPro Mine Resistant Utility Vehicle (MRUV)
MaxxPro Mine Resistant Utility Vehicle (MRUV). Photo courtesy International Military and Government LLC.
MaxxPro Mine Resistant Utility Vehicle (MRUV). Photo courtesy International Military and Government LLC.
MaxxPro Ambulance. Photo: Navistar Defense, LLC.
MaxxPro Plus. Photo: Navistar Defense, LLC.