Oil Pressure Relief Valve Piston for Porsche 356B/356C/356SC/912 (1960–1969)

This piston is the moving element in the engine oil-pressure relief valve. It works within its bore against the spring to control the valve opening as oil pressure changes. Choose it by the engine and valve reference, and check the condition of the mating spring and bore during the repair.

Technical Details

• Part reference: 61610751100
• Later Porsche reference: PCG10751100
• Component: oil-pressure relief valve piston
• System: engine lubrication
• The spring, retaining plug and seals are separate service components; confirm any additional parts needed for the repair.

Fitment & Compatibility

Use the table below for 356B, 356C, 356SC and 912 applications from 1960–1969. Check the engine number and actual valve arrangement, particularly on cars with a replacement crankcase or an engine conversion. Inspect the mating bore and spring during the repair.

PMB Performance has over 20 years of classic Porsche mechanical experience. Send your engine number if you need help matching the oil-pressure valve parts.