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Medium Tactical Vehicle Replacement (MTVR) 7 ton 6x6

Today in WW II: 16 Sep 1940 Parse error: syntax error, unexpected T_NS_SEPARATOR in /big/dom/xolive_drab/www/od2/od2_support_functions.php(242) : eval()'d code on line 1 signed by Pres. Roosevelt, beginning the military draft of US men aged 21-36.  More 
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US Navy & USMC Medium Tactical Vehicle Replacement (MTVR) 7 ton 6x6

Beginning in 2001, the U.S. Navy and Marine Corps Medium Tactical Vehicle Replacement (MTVR) program superseded the M-939 and M-809 5-ton trucks with a fleet of state-of-the art, commercially based, medium trucks with greater mobility, lift, and reliability. The MTVR has an increased payload of 7.1 tons cross-country and 15 tons on hard surface roads and can simultaneously tow an 11 ton load. The MTVR has a 70 percent off road and 30 percent on road mission profile and is capable of sustained speeds of 30 mph cross-country.

The USMC Medium Tactical Vehicle Replacement (MTVR) Cargo Trailer (MK105) and Water Trailer (MK149) are matched to the MTVR truck.

Commercial components include:

  • 425 horse power electronically controlled engine
  • seven speed, continuous power, automatic transmission
  • 6-wheel independent suspension
  • anti-lock brakes
  • engine retarder (“jake brake”)
  • automatic traction control
  • central tire inflation system

MTVR Series of Vehicles

The self-recovery winch is rated at 20,000 lbs. for all MTVR models.

Find additional photos and hi-res versions of the Medium Tactical Vehicle Replacement (MTVR) at the Olive-Drab Military Mashup:

Truck, Dump, 7-ton, MK29/30, MK29A1/MK30A1.  The MK29/MK30 7-ton Dump variant of the MTVR family replaced the M817, M929, M929A1 and the M930.
US Navy Seaman Ashlee Harper, assigned to deck department, signals halt to the 60-ton crane operator while lifting an MK23 MTVR (medium tactical vehicle replacement) truck out of the well deck of the dock landing ship USS Tortuga (LSD 46) while under way in the Pacific Ocean, 18 Feb 2012.
Medium Tactical Vehicle Replacement (MTVR) 7-ton 6x6 with MTVR Armor System (MAS) accompanies US Marines as they conduct combat operations during Operation Cobras Anger in Now Zad, Afghanistan, 4 December 2009. The Marines are assigned to the 3rd Battalion, 4th Marine Regiment.
MK23/MK25 Cargo variant of the MTVR family.  The MK25 has a 20,000-pound capacity self-recovery winch.
A marshalling yard is filled with MK-23 trucks, High-Mobility Multipurpose Wheeled Vehicles (HMMWV) and 5-Ton cargo trucks, in support of Operation ENDURING FREEDOM.
US Navy Seabees assigned to Alpha Company, Naval Mobile Construction Battalion 74 and Alpha Company, NMCB-7 inspect a Medium Tactical Vehicle Replacement tractor (Tractor, MK31 MTVR) and flatbed trailer for the Battalion Equipment Evaluation Program (BEEP) at Camp Mitchell, Rota, Spain, 11 December 2010.  Trailer appears to be civilian, similar to M871.

MTVR Armor System (MAS)

MK23 MTVR with MTVR Armor System (MAS)
MK23 MTVR with MTVR Armor System (MAS).

Experience in Iraq generated the need to armor the MTVR vehicles. The MTVR Armor System (MAS) is designed specifically for the Medium Tactical Vehicle Replacement (MTVR) vehicles and was developed through the Engineering Change Proposal (ECP) process. The kit provides complete 360-degree protection as well as overhead and underbody protection for the crew compartment utilizing Mil-A-46100 High Hard Steel and Metal Composite. The MAS is intended as a permanent modification to the vehicle, and includes an upgraded front suspension and cab rebuild. The kit includes a removable personnel carrier (with ballistic glass), air conditioning system, and machine gun mount. Each MAS kit for sn MTVR variant is specific to that vehicle. MAS is also produced in reducible or non-reducible models to meet all mission requirements. The MTVR Dump Truck and MTVR Tractor MAS Variants began fielding in December 2006.

To accept the armor kit, the standard MVTR requires modifications. After such modifications, the suffix "A1" is added to the model number, e.g. MK31A1. Modified vehicles are referred to as “ready to accept armor” (RTAA).

When armored, the prefix "A" is added to the model number, e.g. AMK31 Tractor.

Medium Tactical Vehicle Replacement (MTVR) Photo Gallery

Convoy of MK23 MTVR trucks from Battery F, Battalion Landing Team, 2nd Battalion, 2nd Marines, 24th MEU SOC, Iraq, 31 March 2003
Convoy of MK23 MTVR trucks from Battery F, Battalion Landing Team, 2nd Battalion, 2nd Marines, 24th MEU SOC, Iraq, 31 March 2003. Mark 19 Mod 3, 40mm grenade machine gun is mounted on top, and the truck is towing a M198 155mm howitzer.

MK23 MTVR from 24th Marine Service Support Group, Transportation Support Detachment, with a M-2 HB .50 Caliber machine gun, Al Rifa, Iraq, 17 April 2003.
MK23 MTVR from 24th Marine Service Support Group, Transportation Support Detachment, with a M-2 HB .50 Caliber machine gun, Al Rifa, Iraq, 17 April 2003.

MK23 MTVR with 2nd Battalion, 11th Marine Regiment, during Convoy Operations training, 29 Palms, CA, 24 April 2004.
MK23 MTVR with 2nd Battalion, 11th Marine Regiment, during Convoy Operations training, 29 Palms, CA, 24 April 2004.

MK23 MTVR with 3rd Battalion, 8th Marines (3/8), India Company, 3rd Squad, Al Anbar Province, Iraq, 20 April 2005
MK23 MTVR with 3rd Battalion, 8th Marines (3/8), India Company, 3rd Squad, Al Anbar Province, Iraq, 20 April 2005. The vehicle is configured with Medium Armor and using an MK 19 Mod 3 40 mm grenade machine gun system on the cab turret.

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