105582-52010 Aftermarket Yanmar Fuel Pump 1GM, 2QM20, 3QM, SB, SBF | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement Mechanical Fuel Feed/Lift Pump - Replaces Part Number: 105582-52010

New aftermarket mechanical/pulse-operated fuel pump replacing 105582-52010. It is configured for 1GM and 1GM10/1GM10C/1GM10VE, 2QM20, 3QM and 3QM30. The exact engine model, serial range, fuel pressure and connection layout must match the original installation.

⚙️ Key Features

• Direct replacement for the 105582-52010 service family

• Designed for Yanmar small mechanically injected marine diesel 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: 105582-52010

• 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:

• 105582-52010 (Yanmar OEM fuel-feed-pump reference)

OEM / Related Numbers:

• 10558252010

Aftermarket / Verified Equivalents:

• Parts4Engines: Yanmar 1GM10 lift-pump equivalent

• NEK/aftermarket: 105582-52010 mechanical pump

• Recmar: REC105582-52010

🚤 Compatibility

Commonly used on:

• Yanmar small mechanically injected marine diesel engines

Typically suits:

• Engine models:

• 1GM and 1GM10/1GM10C/1GM10VE

• 2QM20

• 3QM and 3QM30

• SB and SBF single-cylinder marine diesels

• HP / Output Range: Approximately 7HP - 30HP

• Engine / System Type: Yanmar small mechanically injected marine diesel engines

• Year Range: Classic Yanmar GM/QM/SB production

• Serial / Pump Identification: Match P/N 105582-52010 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