861156A1 Aftermarket Mercruiser High-Pressure Fuel Pump 8M0116357 | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement High-Pressure Electric Fuel Pump - Replaces Part Number: 861156A1

New aftermarket high-pressure electric EFI fuel pump replacing 861156A1. It is configured for MerCruiser EFI/MPI V6 and V8 engines using the 861156 high-pressure pump family. The exact engine model, serial range, fuel pressure and connection layout must match the original installation.

⚙️ Key Features

• Direct replacement for the 861156A1 service family

• Designed for MerCruiser EFI/MPI petrol 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: 861156A1

• 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:

• 8M0116357 → Supersedes 861156A1

OEM / Related Numbers:

• 8M0116357

Aftermarket / Verified Equivalents:

• MerCruiser: 8M0116357

• Recmar: REC861156A1

• Aftermarket high-pressure pump matched to 861156A1

🚤 Compatibility

Commonly used on:

• MerCruiser EFI/MPI petrol engines

Typically suits:

• Engine models:

• MerCruiser EFI/MPI V6 and V8 engines using the 861156 high-pressure pump family

• HP / Output Range: Engine-model dependent

• Engine / System Type: MerCruiser EFI/MPI petrol engines

• Year Range: Model- and serial-dependent

• Serial / Pump Identification: Match P/N 861156A1 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