The 1997 Mercruiser 4.3 fuel pump is a marine-specific mechanical pump designed for inboard engines.

It delivers fuel from the tank to the carburetor or fuel injection system at the required pressure.

Built to withstand harsh marine conditions, it ensures reliable performance in boating applications.

The 1997 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 marine standards for corrosion resistance and durability.

Viscosity: Compatible with gasoline fuels (87-93 octane) and marine-grade additives.

Buoyancy: Not applicable (non-submersible design).

Material: Housing typically made of cast aluminum or corrosion-resistant steel; internal diaphragm composed of nitrile rubber or similar fuel-resistant elastomer.

Pressure Rating: Operates at 4-6 psi, suitable for carbureted engines.

Mounting: Bolt-on installation, often engine-mounted.

Compatibility: Designed for Mercruiser 4.3L V6 engines (1997 model year).