The 1993 Mercruiser 4.3 fuel pump is a marine-specific mechanical pump designed for V6 engines.

It delivers fuel from the tank to the carburetor at the required pressure for optimal performance.

Built to withstand harsh marine conditions, it ensures reliable operation in boating environments.

The 1993 Mercruiser 4.3 fuel pump is a mechanical diaphragm-type pump designed for marine applications. Key specifications include:

Size: Approximately 4.5 inches in diameter and 3 inches in height.

Grade: Meets OEM standards for marine fuel delivery systems.

Viscosity: Compatible with gasoline fuels (87-93 octane) and ethanol blends up to E10.

Buoyancy: Not applicable (non-submersible design).

Material: Housing made of corrosion-resistant aluminum or zinc alloy; diaphragm typically constructed from nitrile rubber or similar fuel-resistant elastomer.

Pressure Rating: Operates at 4-7 psi (pounds per square inch).

Flow Rate: Approximately 28-32 gallons per hour (GPH).

Mounting: Bolt-on installation to the engine block.

Compatibility: Designed for Mercruiser 4.3L V6 engines (1993 model year).