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The M809 Series of diesel 5 Ton trucks is available through the
Federal Excess Property Program
(FEPP). All M39 Series trucks have a 5-speed manual transmission and
multi-fuel engines converted to diesel only, capable of carrying
payloads ranging from 10,000 to 55,000 pounds. Vehicle Models
M52A1/A2 Tractor
M54A1/A2 Cargo
M55A1/A2 Cargo XLWB
Engine and Transmission
Multifuel, converted to diesel only
LDS-465-1A 210 HP @ 2600 RPM
Governed RPM: 2650
Idle RPM: 650 to 700
Mack
ENDT-673 210 HP @ 2100 RPM
Governed RPM: 2600
Idle RPM: 550 to 600
5 Speed Manual O/D
Drive Axles: 3
Transfer: 2 Speed, manually shifted, automatically engaged front
drive (Sprag)
Dimensions
Length, Height of M52A1/A2: 273" with winch, 257½"
without, height of 103"
Length, Height of M54A1/A2: 314¼" with winch,
298¾"
without, height of 116"
Length, Height of M55A1/A2: 386" with winch,
379¼"
without, height of 117½"
Width: 97", all models
Ground Clearance: 10½", all models
Weights With Cargo Bed*
M52A1/A2: 19,300 pounds with winch, 18,560 without
M54A1/A2: 20,220 pounds with winch, 19,480 without
M55A1/A2: 21,346 pounds with winch, 20,606 without
Payloads
Cross Country Payload: 10,000 pounds, all models**
Highway Payload: 20,000 pounds, all models**
Towed Load Cross Country, M52A1/A2: 30,000 pounds, 15,000 on 5th
wheel***
Towed Load Cross Country, M54/M55: 15,000 pounds on pintle
Towed Load Highway, M52A1/A2: 55,000 pounds, 25,000 on 5th wheel***
Towed Load Highway, M813/M814: 30,000 pounds on pintle
Fluids
Cooling System: 44 quarts
Crankcase, Multifuel: 22 quarts
Crankcase, Mack: 18 quarts
Differentials: 12 quarts
Fuel Tank, M52A1/A2: 110 gallons (duel tank)
Fuel Tank, M54/M55: 78 gallons
Transmission: 9 quarts without power takeoff
Transfer: 5¼ quarts
Tire Pressure
11:00x20, Highway: 70 PSI
11:00x20, Cross Country: 35 PSI
11:00x20, Mud, Sand, and Snow: 25 PSI
Maximum Speeds At Governed RPM
Multifuel
| Gear |
Hi |
Low |
| 1st |
7 mph |
3½ mph |
| 2nd |
13 mph |
6 mph |
| 3rd |
21 mph |
10 mph |
| 4th |
36 mph |
18 mph |
| 5th |
56 mph |
25 mph |
Diesel
| Gear |
Hi |
Low |
| 1st |
6 mph |
3 mph |
| 2nd |
11 mph |
5 mph |
| 3rd |
22 mph |
10 mph |
| 4th |
39 mph |
19 mph |
| 5th |
50 mph |
25 mph |
* Verify weight on scale before building. DO NOT exceed
maximum weight depending on usage.
** Weights using military bed. DO NOT exceed maximum weights depending on usage.
***5th wheel removed carries same as cargo truck, but length makes
weight distribution critical.
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