Porsche Willhoit Anti Drain Back Valve - 356 Carrera 50-65 SMC-005-019 091012 91.012 Porsche Correct tire pressure can

Porsche Correct tire pressure can make a real difference

for 928 (1980-1983) models

Two needed per car- one per door

Porsche Emission Label for 911 models

964 and 993 models to be upholstered on your own

Porsche Willhoit Anti Drain Back Valve - 356 Carrera 50-65 SMC-005-019 091012 91.012 Porsche Correct tire pressure canPorsche Willhoit anti drain back valve for all 356 Carrera (1950 1965) models. Four cam cars, and all 911's up to 1989, have a dry sump oiling system. The oil for the engine is stored in a tank in the fender well and not in the crankcase as in a wet sump engine (like the 356). A dry sump system has several advantages: Since no oil is stored in the crankcase, the engine case can be made smaller and the engine can be mounted lower in the car, lowering