To find it, you'll need to:
1. Identify your engine: Know the exact engine model (e.g., Cummins 6BT, ISB, etc.). This information is usually found on a sticker on the engine itself or in your vehicle's documentation.
2. Consult a repair manual: A repair manual specific to your year, make, and model vehicle will show you a diagram of the engine and the location of the oil pressure sending unit. These are available online or from auto parts stores.
3. Look for a small sensor near the oil filter: The sending unit is often located near the oil filter or oil cooler, usually on the engine block itself. It's typically a small sensor with one or two wires connected to it. It might have a single wire for just a gauge, or two wires for a gauge and a warning light.
Caution: Working on your engine requires some mechanical knowledge. If you're not comfortable doing this yourself, it's best to take your vehicle to a qualified mechanic.
