0280170402 Used Bosch Cold Start Valve Fits Porsche 911S New cold start valve All valves are thoroughly tested

All valves are thoroughly tested on our Lambda Closed-Loop tester to ensure accuracy in Lambda and Duty Cycle measurements

Before replacement

15 degrees c +- 3*c  Temp at which switch opens

helping your Mercedes run smoothly under varying conditions

0Si      1975-78

0280170402 Used Bosch Cold Start Valve Fits Porsche 911S New cold start valve All valves are thoroughly tested0280170402 Used Bosch Cold Start Valve fits Porsche 911S A working cold start valve plays an important role in fuel injection performance during startup, especially in cooler conditions. When this part fails, the engine may be harder to start and may run unevenly until it warms up. Replacing a worn valve with the correct Bosch unit can help restore smoother cold starts and improve overall reliability. The 0280170402 Used Bosch cold start valve is a