Sierra Fuel Pump Diaphragm for Yamaha Outboards

The Sierra fuel pump diaphragm for Yamaha outboards is a replacement part for the mechanical fuel pump on many Yamaha outboard engines. The diaphragm flexes with each stroke to move fuel from the tank to the carburetor. Over time it can harden, crack or leak, which can cause hard starting, fuel starvation, rough running or loss of power. Replacing a worn diaphragm helps restore steady fuel delivery.

Key Features:

• Replacement fuel pump diaphragm for Yamaha outboard motors
• Made for marine use, with materials intended to resist fuel and ethanol-blended gasoline
• Restores proper fuel pump pressure and flow
• Helps with starting, idle quality and throttle response
• Part of the Sierra marine engine parts line, which is aftermarket and designed to replace the original part

Sierra is a long-established supplier of marine engine parts, with a range that covers many outboard and sterndrive applications. Choose the child item that matches your engine. Replace the diaphragm as part of regular fuel system service or when you find fuel pump wear or leakage.