Fuel level sender petrol tank M38A1
5-bolt mounting
Reproduction fuel level sender for the Willys M38A1. The sender is mounted to the petrol tank with five bolts and transmits the fuel level to the fuel gauge in the dashboard. Fitted with a float that hangs in the tank for accurate measurement.
|
Voltage system 6V, 12V of 24V |
Mounting 5-schroefs montage |
|
Vehicle M38A1 (1952-1966) |
Included Montagepakking |
Features
- 5-bolt mounting on top of tank
- Float hangs in tank for accurate measurement
- Operates by resistance measurement
- Suitable for 6V, 12V or 24V systems
- Complete float arm for correct reading
★ The sender operates by variable resistance and is therefore compatible with 6V, 12V and 24V systems. However, the voltage setting of the fuel gauge in the dashboard must correspond to the electrical system of the vehicle.
⚠ Important
- Check that the fuel gauge in the dashboard corresponds to the vehicle voltage (6V, 12V or 24V)
- Ensure good earthing of the sender to body or chassis
- Do not allow metal particles to fall into the tank during installation — these can damage the fuel pump and carburettor
- In case of inaccurate reading: check earthing first before replacing the sender
- For M38A1 converted to 12V: arm length adjustment may be necessary for full scale reading
Application
Specific for Willys M38A1 (1952-1966). The M38A1 has a unique petrol tank with an additional sump at the bottom, meaning a small fuel reserve remains when the gauge indicates empty. For vehicles converted to 12V, arm length adjustment may be necessary for accurate reading.
Installation notes
Mounting is done with five bolts (B0305) on top of the petrol tank. The sender has one electrical connection that runs to the 'S' terminal of the fuel gauge. Good earthing is crucial — earth the sender via one of the mounting bolts to the body/chassis. During installation, do not allow metal particles to fall into the tank.
Compatibility
Note: the M38A1 uses a 5-bolt sender. This distinguishes it from the M38 (also 5-bolt but different arm) and the later CJ-5/CJ-6 models (6-bolt). For original 24V M38A1 systems, a 24V sender and 24V gauge are required. When converting to 12V, the gauge must also be replaced — the sender itself works universally on a resistance basis.
Historical context
The M38A1 (military designation MD/M170) was produced from 1952 to 1971 as successor to the M38, with a higher profile and revised fuel tank with built-in reserve sump for extended range in combat conditions.
This description was generated automatically. Unsure about fitment? Contact us at info@willys.be.
This part is intended for the restoration of historic military vehicles. Fitting, aligning, deburring or reworking is part of that work and is inherent to the nature of these goods. Dimensional variation also exists between original vehicles.
Installation requires technical knowledge of the vehicle. Unsure whether this part suits your version? Ask us before purchase at info@willys.be.
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| Willys M38 | 1950, 1951, 1952 |
| Willys M38A1 | 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971 |
📐 Diagrams & technical drawings
From the original Technical Manual CJ2A_PL_1949 — Parts List — only for Willys CJ-2A / CJ-3A (1949)
