Fuel Pump Assembly – Fits Mercury/Mariner 30-60HP 4-Stroke Outboard (Replaces 8M0118177, 8M0141827)

Fuel Pump Assembly – Fits Mercury/Mariner 30-60HP 4-Stroke Outboard (Replaces 8M0118177, 8M0141827)

This fuel pump assembly is designed for Mercury/Mariner 30HP (3-cylinder) and 40-60HP (4-cylinder) 4-stroke EFI outboard engines from 2002 to the present. It ensures reliable fuel delivery for consistent engine performance.

This component is a direct replacement for multiple OEM part numbers, including Mercury 8M0118177, 8M0141827, 899106T01, 892874T01, 881862T08, 881862T, and Sierra 18-8866.

• Engineered for a direct OEM fit, simplifying installation.
• Compatible with standard gasoline for EFI systems only.
• Includes the complete fuel pump assembly and necessary mounting hardware.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Detailed Serial Number Applications:

• 30HP EFI (3-cylinder): 0P153500-0P400999, 0T409000-1B226999, 1C109093-present
• 40HP EFI (3-cylinder): 0P153500-0P515896, 0T409000-1B355027, 1C000001-present
• 40HP EFI (4-cylinder): 0P153500-0P580772, 0T409000-1B355222, 1C000001-present
• 40HP EFI Jet: 1C051324-present
• 50HP EFI (4-cylinder): 0P153500-0P580772, 0T409000-1B355222, 1C000001-present
• 60HP EFI (4-cylinder): 0P153500-0P580772, 0T409000-1B355222, 1C000001-present
• 60HP SeaPro: 1C453840-present
• 60HP Formula: 1C104574-present
• 60HP Racing: 1C615064-present

Technical Specifications

Package Contents

• 1 x Fuel Pump Assembly (8M0118177/8M0141827/899106T01/892874T01/881862T08/881862T)
• 1 x Mounting Hardware (54-816311T)

Explosion Diagram

Installation Guide

1. Safety First: Disconnect the battery and carefully relieve any pressure from the fuel system.
2. Access the Pump: Locate the old fuel pump assembly. Disconnect the electrical connector and fuel lines, noting their positions.
3. Remove Old Pump: Unscrew the mounting bolts holding the old pump in place and carefully remove it from the engine.
4. Verify Fitment: Before installing, compare the new pump with your original part to ensure all components and connections match perfectly.
5. Install New Pump: Secure the new fuel pump assembly using the original or supplied hardware. Do not overtighten.
6. Reconnect Lines: Re-attach the fuel lines and the electrical connector to the new pump, ensuring they are snug and secure.
7. Prime the System: Reconnect the battery. Turn the ignition key to the "ON" position (without starting the engine) 2-3 times to allow the pump to prime the fuel system.
8. Final Check: Start the engine and carefully inspect for any fuel leaks around the pump and its connections.

Troubleshooting & FAQ

How do I confirm this fuel pump fits my Mercury outboard?
Start by checking that your engine is a 30, 40, 50, or 60HP 4-stroke EFI model manufactured from 2002 onwards. Most importantly, verify your engine's serial number against the detailed application list in the "Compatible Engine Models" section to ensure an exact match.

What are common signs of a failing fuel pump?
A faulty fuel pump can cause engine hesitation, sputtering at high speeds, a loss of power, difficulty starting, or complete engine stall. You may also hear a distinct whining sound from the fuel pump area during operation.

Is this designed for a specific fuel system?
Yes, this is a high-pressure electric fuel pump assembly built specifically for Electronic Fuel Injection (EFI) systems. It is not suitable for older, carbureted engines, which use low-pressure fuel systems.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.