8M0073435 Aftermarket Mercruiser 3.0L Fuel Pump 861676A1 | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement 3.0L Mechanical Fuel Pump - Replaces Part Number: 8M0073435

New aftermarket mechanical/pulse-operated fuel pump replacing 8M0073435. It is configured for 3.0L inline four-cylinder MerCruiser petrol engines. The exact engine model, serial range, fuel pressure and connection layout must match the original installation.

⚙️ Key Features

• Direct replacement for the 8M0073435 service family

• Designed for MerCruiser 3.0L inline-four petrol engines

• Pulse- or engine-driven low-pressure fuel delivery

• Marine fuel-resistant diaphragm and valve materials

• Confirm the engine serial, pump pressure and port orientation before installation

🧰 Kit / Assembly Contents

• 1 × Complete mechanical/pulse fuel-pump assembly - Part Number: 8M0073435

• 1 × Integrated diaphragm and check-valve assembly

• 1 × Pump-to-engine mounting gasket - supplied where included by the selected manufacturer

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 8M0073435 → Supersedes 861676A1

OEM / Related Numbers:

• 861676A1

Aftermarket / Verified Equivalents:

• Recmar: REC8M0073435

• Aftermarket MerCruiser 3.0L mechanical fuel pump

🚤 Compatibility

Commonly used on:

• MerCruiser 3.0L inline-four petrol engines

Typically suits:

• Engine models:

• 3.0L inline four-cylinder MerCruiser petrol engines

• HP / Output Range: Approximately 135HP - 150HP

• Engine / System Type: MerCruiser 3.0L inline-four petrol engines

• Year Range: Later 3.0L production; serial-dependent

• Serial / Pump Identification: Match P/N 8M0073435 to the model-specific parts diagram and verify pressure, electrical connector, inlet/outlet orientation and mounting before ordering.

🔌 Function

The engine-driven diaphragm pump uses crankcase pulses or a cam-operated lever to draw fuel from the tank and deliver a regulated low-pressure supply to the carburettor, vapour separator or downstream high-pressure pump.

Common signs of failure:

• Hard starting after the engine has been standing

• Fuel starvation, hesitation or loss of power under load

• Failure to fill the carburettor bowls or vapour separator

• Fuel leaking from the pump body or ruptured diaphragm

• Engine-oil dilution or fuel entering the pulse passage on a failed pump

📦 Condition

• New aftermarket replacement part

• Brand new

• Supplied in original or equivalent packaging