The Truck, Tank, Gasoline, 1200 gallon, 6x6 Fuel Servicing M-49 is part of the G-742 (or M-44) series of 2 1/2 ton trucks. The many models of the very successful G-742 trucks were in Army inventory from the mid-1950s into the 1990s.
Details of the history, model numbers, and configurations of the M35-series of 6x6 cargo trucks are on the linked page. The M49 Fuel Servicing truck has these models:
NSN w/o Winch
REO/Continental OA331 Gas
REO/Continental OA331 Gas
LD-465, LDT-465 Multifuel
Fuel Servicing truck M49 has a 1200-gallon tank body mounted on the M45 chassis (dual rear wheels). The tank body has 200-, 400-, and 600-gallon internal sections. Side skirts and running board on each side of the tank body are provided with sockets for mounting top bows and a top paulin with end covers for camouflage, when necessary. Tank body sections can be filled or emptied by a delivery pump mounted in the rear compartment. The pump is driven from the power takeoff mounted on the transfer case. The wiring harness for this truck is made in two sections. The chassis section of the chassis wiring harness is insulated against gasoline fumes. The front or cab section of the harness is of normal waterproof construction. No trailer connections or pintle is provided. A 35-foot length of 1 1/2-inch reinforced hose (with a standard 1 1/2-inch, automotive-type nozzle equipped with 100-mesh nozzle screen) is mounted on the roadside of the tank.
Fuel Servicing trucks M49C and M49A1C are similar to the M49 except that a separator and filter are mounted at the side and/or rear of the tank body to filter water and other impurities from aviation fuel. The dispensing pump has been relocated to accomodate the filter and metering equipment. The M49C and M49A1C are the same except for engines (see charts).
The M49A2C is based on the drop-side cargo truck. This difference means that the earlier models have a rectangular wheel well while the M49A2C has a straight base on the rear body (see photos). The exhaust system on M49A2C fuel tanker includes a spark-arrestor-type muffler, which traps exhaust sparks from the engine. M49A2C fuel trucks are equipped with two 600-gallon internal tanks, rather than the three tank system of the earlier models.
With the body changes, the M49A2C overaall height is increased by 4 1/2 inches while ground clearance is reduced by 1 9/16 inches.
The suffix "C" on the model number indicates the installation of an aviation gas filter/seperator kit.
Thanks to MSG J. Durham for help with this page.
M49 2 1/2 ton 6x6 Fuel Servicing Truck, reference photo from TM 9-2320-209-20 (April 1965).
M49C 2 1/2 ton 6x6 Fuel Servicing Truck, reference photo from TM 9-2320-209-20 (April 1965).
M49-series Fuel Servicing Trucks, POL Convoy At Pleiku, Vietnam. The closest truck is M49A2C while the two trucks further ahead appear to be earlier models.
A US Army soldier holds the dispensing nozzle of a Truck, Tank, 6x6, Fuel Servicing M49A2C, August 1976.
Detail of photo above showing markings that indicate two 600-gallon tanks, characteristic of the M49A2C Fuel Servicing Truck.
U.S. Navy construction battalion M-49A2C Truck, Tank, 6x6, Fuel Servicing during Operation Desert Storm, April 1991.
M49A2C Truck, Tank, 6x6, Fuel Servicing, w/o winch. Photo: Courtesy of Shane Deemer, Military Rails Online.