866169A01 Aftermarket Mercruiser Gen 3 High-Pressure Fuel Cooler Pump | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement Gen III Cool Fuel High-Pressure Pump - Replaces Part Number: 866169A01

New aftermarket high-pressure electric EFI fuel pump replacing 866169A01. It is configured for 5.0L MPI, 5.7L/350 Mag MPI, 6.2L/377 MPI. The exact engine model, serial range, fuel pressure and connection layout must match the original installation.

⚙️ Key Features

• Direct replacement for the 866169A01 service family

• Designed for MerCruiser Gen III Cool Fuel MPI engines

• EFI high-pressure electric-pump construction

• Designed for vapour-separator, VST or cooled fuel-module installation

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

🧰 Kit / Assembly Contents

• 1 × Complete electric fuel-pump assembly/cartridge - Part Number: 866169A01

• 1 × Integrated electrical connector or terminals

• 1 × Inlet screen/strainer - supplied where included by the selected manufacturer

• Seals, module O-rings and mounting hardware are renewed separately unless included

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 866169T01 → Service-kit form associated with 866169A01

OEM / Related Numbers:

• 866169T01

Aftermarket / Verified Equivalents:

• Sierra: 18-8864

• Recmar: REC866169A01

• Aftermarket Gen III high-pressure pump

🚤 Compatibility

Commonly used on:

• MerCruiser Gen III Cool Fuel MPI engines

Typically suits:

• Engine models:

• 5.0L MPI

• 5.7L/350 Mag MPI

• 6.2L/377 MPI

• 8.1L/496 and 8.2L/502 applications with Gen III Cool Fuel

• HP / Output Range: Approximately 260HP - 425HP

• Engine / System Type: MerCruiser Gen III Cool Fuel MPI engines

• Year Range: Gen III Cool Fuel production; serial-dependent

• Serial / Pump Identification: Match P/N 866169A01 to the model-specific parts diagram and verify pressure, electrical connector, inlet/outlet orientation and mounting before ordering.

🔌 Function

The high-pressure electric pump supplies the pressure and flow required by the EFI fuel rail and injectors. It normally operates inside a vapour separator or cooled fuel module.

Common signs of failure:

• Low or unstable fuel-rail pressure

• Crank/no-start or difficult hot starting

• Engine hesitation, lean surging or loss of power

• Pump noise, excessive current draw or blown fuse

• Intermittent stalling as the pump or fuel module heats up

📦 Condition

• New aftermarket replacement part

• Brand new

• Supplied in original or equivalent packaging