Rostra 50-1258
Single-terminal factory oil-pressure gauge sender with a 1/8"-27 NPT thread and male blade connection.
Rostra 50-1258 is a single-terminal oil-pressure sender for the factory gauge, corresponding to the Standard PS-155 family. It installs in the engine oil gallery and supplies an electrical signal to the gauge.
Application / fitment
- selected Buick, Cadillac, Chevrolet, GMC, Oldsmobile and Pontiac vehicles with a factory oil-pressure gauge
- selected Jeep applications using 2.5 and 4.0 engines with a PS-155-compatible circuit
- selected passenger and light commercial vehicles from the 1970s through the early 1990s
- single-terminal systems using a 1/8"-27 NPT thread
This is not a universal sender for every aftermarket gauge or a multi-terminal fuel-pump safety switch. Confirm the OE number, thread, connector and gauge electrical characteristics.
Technical information
- type: oil-pressure gauge sender / switch
- terminal count: 1
- terminal type: male blade
- mounting thread: 1/8"-27 NPT
- cross-references: Standard PS-155, Rostra 501258, BWD S768, Airtex 1S6563
- selected GM numbers: 10030966, 14040816, 14078917, 14078954, 15591103, 22522707
- selected Jeep numbers: 53000834, 53005218
- sales unit: 1 piece
Clean the port before installation and use thread sealant compatible with electrical senders. Excess tape or sealant can interfere with the electrical ground path or enter the oil gallery.