Where is the oil pressure sending unit on a 250 6 cylinder?

The location of the oil pressure sending unit on a 250 6-cylinder engine depends heavily on the year and make of the vehicle. There's no single answer. 250 6-cylinder engines were used in various vehicles across different decades by different manufacturers (e.g., Mercedes-Benz, International Harvester).

To find it, you'll need to:

1. Identify the exact year, make, and model of your vehicle. This is crucial.

2. Consult a repair manual specific to your vehicle. A Haynes or Chilton manual, or a factory service manual, will have diagrams and instructions showing the location of the oil pressure sending unit. These manuals are your best resource.

3. Search online forums. Search online forums specific to your vehicle's make and model. Someone might have already asked the same question and pictures are often included.

Generally, the oil pressure sending unit is located on the engine block, near the oil filter or the oil pan, but its exact position varies significantly. Expect it to be a relatively small sensor with one or two wires connected to it. Always be cautious when working on your engine and disconnect the negative battery terminal before beginning any work.