859428 Aftermarket Volvo Penta Fuel Pump | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement Fuel Pump Assembly - Replaces Part Number: 859428

New aftermarket mechanical/pulse-operated fuel pump replacing 859428. It is configured for Volvo Penta marine engines whose parts catalogue specifies 859428. The exact engine model, serial range, fuel pressure and connection layout must match the original installation.

⚙️ Key Features

• Direct replacement for the 859428 service family

• Designed for Volvo Penta fuel-system applications

• 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: 859428

• 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:

• 859428 (Volvo Penta reference)

OEM / Related Numbers:

• 859428

Aftermarket / Verified Equivalents:

• Recmar: REC859428

🚤 Compatibility

Commonly used on:

• Volvo Penta fuel-system applications

Typically suits:

• Engine models:

• Volvo Penta marine engines whose parts catalogue specifies 859428

• HP / Output Range: Engine-model dependent

• Engine / System Type: Volvo Penta fuel-system applications

• Year Range: Model- and serial-dependent

• Serial / Pump Identification: Match P/N 859428 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