438556 18-7352 Fuel Pump with Gasket

Key Features

• Direct replacement mechanical fuel pump assembly.
• Engineered to meet original manufacturer specifications for fit and performance.
• Provides consistent fuel flow at a nominal pressure of 6-8 PSI.
• Includes new mounting gasket for a complete and proper seal.

Replaces / Cross-Reference Part Numbers

• OMC / Johnson Evinrude: 438556, 433390, 388268, 385784, 385781
• Sierra: 18-7352
• EMP: 1399-07352, 167352

Compatibility & Fitment

• Fits a wide range of Johnson and Evinrude outboard engines from approximately 20 HP to 140 HP.
• Designed for engines without a variable-ratio oiling system.
• Commonly used on 2-cylinder models manufactured between 1976 and 1989.
• Specific engine fitments include:
• 20 HP (1985-1989)
• 25 HP (1976-1988)
• 28 HP (1985-1989)
• 30-55 HP (1976-1989)

When to Replace

• Engine is difficult to start or will not start.
• Noticeable loss of engine power, especially at high RPM.
• Engine sputters, surges, or stalls during operation.
• Visible fuel leakage from the pump body or connections.

Installation Tips

• Always disconnect the battery before starting installation.
• Carefully disconnect fuel lines to minimize spillage.
• Ensure the engine block mounting surface is clean and free of old gasket material.
• Install with the new, included gasket to prevent leaks.
• After installation, check all connections for tightness and leaks before running the engine.