Oil pressure indicator standard type NOS
New Old Stock
Original New Old Stock oil pressure indicator (oil pressure sending unit) for WWII jeeps. This unit mounts directly to the engine block and transmits the oil pressure signal to the oil pressure gauge on the dashboard. Essential component for reliable oil pressure monitoring.
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Type Standard mechanical version |
Condition New Old Stock (NOS) |
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Vehicle Willys MB, Ford GPW, Hotchkiss M201 |
Mounting Direct to engine block |
Features
- New Old Stock condition — never used
- Original military specification
- Direct fit for WWII jeeps
- Suitable for 6V and 12V systems
- Mechanical oil pressure measurement
★ This is an original NOS part from military stock — the highest quality for an authentic restoration.
Application
This oil pressure indicator fits Willys MB (1941-1945), Ford GPW (1941-1945) and Hotchkiss M201. The sending unit mounts to the rear of the engine block in the lower oil gallery and transmits the pressure signal via a flexible line to the oil pressure gauge in the dashboard.
Installation notes
The sending unit is mounted in the rear opening of the lower oil gallery on the driver's side of the engine block. Check the connection of the flexible oil line — the original Willys specification for the internal diameter of fittings is crucial for correct oil pressure and flow. When replacing the indicator, it is recommended to also replace the dashboard gauge for an accurate reading.
Compatibility
Suitable for both 6 volt and 12 volt systems. Note: when converting to 12V, a resistance adapter may be required for the dashboard gauge. This mechanical sending unit is not compatible with later electrical warning light systems used from the mid-1950s onwards on CJ-3B and later models.
Historical context
During WWII, mechanical oil pressure indicators were fitted as standard to all Willys MB and Ford GPW jeeps, with a measuring range up to 60 psi. Constant oil pressure monitoring was essential for the reliability of the L-134 'Go Devil' engine under extreme conditions.
This description was generated automatically. Unsure about fitment? Contact us at info@willys.be.
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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.
📐 Diagrams & technical drawings
From the original Technical Manual TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)
