M809 Series - 5 Ton 6X6 Truck

M809 Series 5 Ton 6X6 Truck

M809 Series

5 Ton 6X6 Truck

The M809 Family of 5-Ton 6x6 trucks were developed from 1969 to 1982, by Kaiser Jeep who later became AM General with about 92,000 units produced. The M809 series was a diesel engine upgrade to the M39 series of 5-ton 6x6 truck and had no engine or transmission upgrades throughout its service life. Designated as the G908 series by the U.S. Army Ordnance Corps Supply Catalog.

M809 Series - 10,000lb 6X6 Military Truck

Related Documents In Library


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M809 Specs

Crew

  • Driver
  • 1 Passenger

Mobility

  • Engine: Cummins NH250 240hp (180 kW)
  • Transmission: Dana Spicer 5 Speed Manual, 2 Range Transfer Case
  • Speed Limit: 52mph (84km/h)
  • Maximum Range: 350 mi (563.3 km)

Dimensions

  • Length: 319in (8.1m)
  • Height: 117in (2.9m)
  • Width: 98in (2.5m)
  • Weight: With Winch 21,020lbs (9534kg) empty
  • Weight: Without Winch 20,355lbs (9232kg) empty

Biography of the M809 Series of Trucks

The M809 5-ton, 6x6 trucks were manufactured between the years 1969 and 1982, by Kaiser Jeep, who later became AM General. By the end of production there were approximately 92,000 M809s designed. In the 1960s, the U.S. Army wanted to replace the standard multi-fuel engines with diesel engines. The M809 series was an upgraded version of the 5-ton M39 series, in turn had an upgraded version named the M939 series, and then eventually the M939 series were slowly replaced with the Medium Tactical Vehicles (MTV) starting in 1991. Even though, all the trucks were upgrades of each other, they were still mechanically similar in design. The M809 series and its variants were designated as G908 by the U.S. Army Ordnance Corps Supply Catalog. The main function of the M809 trucks were to transport troops, cargo and materials over any type of terrain, with up to 5-tons (10,000lbs (4,500 kg)) and in most cases doubling the load size.

The M809 series had 3 wheelbases: short, standard long and extra-long. At 14ft 11in (4.55m), the M809 was considered the “standard long wheeled”. The M810 was the “short wheeled” at 13ft 11in (4.24m). The M811 and M812 were the “extra-long wheeled” at 17ft 11in (5.46m). The M809 series had a ladder frame with 3 axles. The front axle was on semi elliptical leaf springs and the rear tandem on quarter elliptical leaf springs. The M809 was lengthened in the hood, frame and fenders compared to the M39. This was to make room for the only engine used in the M809s which was a 240hp Cummins NH250, naturally aspirated diesel engine. A Dana-Spicer manual, 5-speed, synchromesh transmission with a Rockwell-Standard 2-speed transfer case that engaged the front axle was used. The brakes were air over hydraulic with drum brakes on all the wheels. Variants that used a trailer, used air brake connections that were separate from the service brakes. The M809s had a redesigned grille and an air cleaner on the left front fender. They also had a rear pintle hitch which could tow 15,000lb (6,800kg) trailers and a front mounted 20,000lb (9,100kg) capacity winch.

Since this series did not have any engine upgrades or transmission upgrades all the M809 variants were based on the wheelbase lengths and main operation of the vehicle. The M813 & M814 were cargo trucks. The M815 was a bolster truck. The M816 and M819 were wrecker/recovery trucks. The M817 was a dump truck. The M818 was a tractor. The M820 had an expansible van body and the M821 was a bridge transporter.

M809 Variants

M809

M809 - Truck Chassis

NSN w/ winch 2320-00-050-8841
NSN w/o winch 2320-00-050-8842


The M809 is the standard long wheeled based truck chassis. It is 14ft 11in (4.55m) long and is the platform for other variants like cargo trucks and wreckers.

Modernized M809 Models:
M810

M810 - Truck Chassis

NSN w/ winch 2320-00-051-0585
NSN w/o winch 2320-00-051-0586


The M810 is the standard short wheeled based truck chassis. It is 13ft 11in (4.24m) long and is the platform for other variants like dump trucks and tractors.

M811

M811 - Truck Chassis

NSN w/ winch 2320-00-050-8985
NSN w/o winch 2320-00-050-8986


The M811 is the standard extra-long wheeled based truck chassis. It is 17ft 11in (5.46m) long and is the platform for other variants like wreckers, cargo trucks, and expansible van bodies.

Modernized M811 Models:
M812

M812 - Truck Chassis

NSN w/ winch 2320-00-050-9011


The M812 is another version of the extra-long wheeled based truck chassis. It is 17ft 11in (5.46m) long and is the platform for bridge transporters and rocket launchers.

Modernized M812 Models:
M813

M813 - Cargo Truck

NSN w/ winch 2320-00-050-8890
NSN w/o winch 2320-00-050-8902


The M813 was considered the standard cargo truck that used the M809 chassis. The main purpose of the cargo truck was to transport troops and materials. The cargo truck was equipped with side racks, troop seats and overhead bows with a canvas top. The cargo bed was 14ft (4.3m) long and 7ft wide. The truck was 26ft 7in long (8.10m) 8ft 2in wide (2.49m) and 9ft 9in (2.97m) in height.

Modernized M813 Models:
M814

M814 - Extra-Long Cargo Truck

NSN w/ winch 2320-00-050-8987


The M814 is a cargo truck that uses the M811 chassis. The cargo bed is 20ft (6.1m) long instead of the standard 14ft (4.3m). This model only has the standard dropped tailgate, and there were also no troop seats. The truck is 32ft 11in long (10.03m) 8ft 2in wide (2.49m) and 9ft 9in (2.97m) in height.

M815

M815 - Bolster Truck

NSN w/ winch 2320-00-050-8927


The M815 was a bolster truck on the M809 chassis and used a M796 bolster trailer. The truck was used to haul long loads such as pipes, bridge sections, logs and poles. The M815 had a cab protector and 2 winches, a front and a midship winch. It also had a bolster assembly and bolster trailer carrier. The carrier would be connected to the truck frame to support the M796 bolster trailer while in the loaded position, and ramps would be used to load and unload the trailer. When the truck was unloaded the trailer could be loaded onto it. The truck was 27ft 7in long (8.10m) 8ft 2in wide (2.49m) and 9ft 8in (2.95m) in height.

M816

M816 - Medium Wrecker Truck

NSN w/ winch 2320-00-051-0489


The M816 is a medium wrecker truck that uses the M809 chassis. Its primary function is to recover vehicles and lift large items. It comes equipped with a rotating hydraulic boom that can extend up to 18ft (5.48m) and carry 20,000lbs (9072kg). There is a rear mounted 45,000lb (20411kg) winch and a 20,000lb (9072kg) winch located in the front. The truck is 29ft 7in long (9.02m) 8ft 2in wide (2.49m) and 9ft 4in (2.84m) in height.

M817

M817 - Dump Truck

NSN w/ winch 2320-00-051-0589
NSN w/o winch 2320-00-050-8970


The M817 was a dump truck that used the M810 chassis. The dump truck was used to haul materials like sand, gravel, rubble, dirt, etc. It was equipped with a 5 cubic yard (3.8 m3) dump body, a cab protector and a tailgate that could hinge either at the top or bottom. They also had the ability to be equipped with overhead bows, a canvas top and troop seats, but the smaller sized body restricted the passenger or cargo load. The truck was 24ft 1in long (7.34m) 8ft 2in wide (2.49m) and 9ft 4in (2.84) in height.

M818

M818 - Tractor Truck

NSN w/ winch 2320-00-050-8978
NSN w/o winch 2320-00-050-8984


The M818 was considered a tractor truck that used the M809 chassis and was designed to tow semi-trailers on moderately flat roads. They were able to tow up to 37,500lbs (17,000kg) with 15,000lbs (6,800kg) on their 5th wheel. The truck was 23ft 4in long (7.11m) 8ft 2in wide (2.49m) and 9ft 4in (2.84) in height.

M819

M819 - Wrecker/Tractor Truck

NSN w/ winch 2320-00-050-9004


The M819 is a wrecker/tractor truck that uses the M811 chassis. The M819 is the extra-long version of the M816 wrecker. The M819 has a 5th wheel mounted instead of a rear winch like the M816. The truck comes equipped with a rotating hydraulic boom that can extend from 11 ½ft to 26ft (3.51m-7m) and carry 20,000lbs (9072kg) and a 20,000lb (9072kg) winch located in the front. The truck was 29ft 10in long (9.09m) 8ft 2in wide (2.49m) and 11ft (3.35m) in height.

M820

M820 - Expansible Van Truck

NSN w/ winch 2320-00-050-9006


The M820 was a truck with an expansible van body that was on the M811 chassis. The van body was 17ft (5.2m) long and 8ft (2.4m) wide and had the ability to hold 5,000lbs (2,300kg) of equipment. When the sides of the van were expanded, the width changed to 14ft (4.3m). The main function of the vans was to transport electronic base stations to the field that could be used for communication stations or electronic repair stations. The truck was 30ft 3in (9.22m) long 8ft 2in wide (2.49m) and 11ft 6in (3.51m) in height. The M820 van had a few variants of itself which mainly involved air conditioning and heating systems. The original M820 had windows, heating and air conditioning and used outside electrical power. The M820A1 did not have windows or air conditioning but had a heating system. The M820A2 was equipped with windows, heating and air condition systems, along with a hydraulic lift gate.

Modernized M820 Models:
M821

M821 - Expansible Van Truck

NSN w/o winch 2320-00-050-9015


The M821 was a truck modified to transport bridges using the M811 chassis. The stake body type was 20ft (6.1m) long and 7ft (2.14m) wide. The stakes could be removed, if needed, for extra wide loads. It had a roller on the back to help unload along with small winches on the sides to hold the cargo in place. The truck itself was 31ft 10in long (9.70m) 8ft 2in wide (2.49m) and 9ft 6in (2.90m) in height.



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