The fuel pump for a 4.3 Mercruiser is a marine-specific mechanical or electric pump designed to deliver fuel efficiently to the engine. It ensures reliable performance under harsh marine conditions, including corrosion resistance and durability. Compatible with Mercruiser 4.3L V6 engines, it meets marine safety and emissions standards.

Key specifications and technical properties of the Fuel Pump for a 4.3 Mercruiser, Marine Pumps:

- Size: Typically 2.5 to 3 inches in diameter, varies by model

- Grade: Marine-grade, corrosion-resistant

- Viscosity: Compatible with fuels up to 50-100 SUS (Saybolt Universal Seconds)

- Buoyancy: N/A (not applicable for fuel pumps)

- Material: Aluminum housing, stainless steel or nitrile rubber internals

- Pressure Rating: 4-7 PSI (pounds per square inch)

- Flow Rate: 30-40 gallons per hour (GPH)

- Voltage: 12V DC (standard marine electrical system)

- Compatibility: Ethanol-blended fuels (up to E10)

- Mounting: Bolt-on or bracket-mounted

- Inlet/Outlet Size: 3/8-inch or 5/16-inch fuel line fittings

- Weight: Approximately 1-2 lbs (varies by design)