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) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Fuel Pump Assembly – Fits Mercury/Mariner 30-60HP 4-Stroke Outboard...
Fuel Pump Assembly – Fits Mercury/Mariner 30-60HP 4-Stroke Outboard (Replaces 8M0118177, 8M0141827) is backordered and will ship as soon as it is back in stock.
Product Details
This is a direct-replacement Fuel Pump Assembly for Mercury/Mariner 30-60HP 4-Stroke Outboard engines. It is designed to fit 30HP (3-cylinder) and 40-60HP (4-cylinder) EFI models manufactured from 2002 to the present, ensuring reliable fuel delivery for your engine.
This assembly is a direct interchange for Mercury part numbers 8M0118177, 8M0141827, 899106T01, 892874T01, 881862T08, 881862T, and Sierra 18-8866.
- Engineered for a direct OEM-replacement installation.
- Compatible with standard marine gasoline (for EFI systems only).
- Features OEM-style electrical connectors and fittings for a hassle-free setup.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 8M0118177 |
| Mercury | 8M0141827 |
| Mercury | 899106T01 |
| Mercury | 892874T01 |
| Mercury | 881862T08 |
| Mercury | 881862T |
| Sierra | 18-8866 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Mercury/Mariner owners, it is critical to verify your engine's serial number falls within the specified ranges for proper fitment.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury | 3-Cylinder EFI | 30 | 4-Stroke | 0P153500-present | 8M0118177 | |
| Mercury | 4-Cylinder EFI | 40 | 4-Stroke | 0P153500-present | 8M0118177 | Includes EFI Jet models |
| Mercury | 4-Cylinder EFI | 50 | 4-Stroke | 0P153500-present | 8M0118177 | |
| Mercury | 4-Cylinder EFI/SeaPro | 60 | 4-Stroke | 0P153500-present | 8M0118177 | Includes SeaPro models |
View 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 Specs
- Product Type
- Electric Fuel Pump Assembly
- Installation
- Direct OEM Replacement
- Fuel Type
- Gasoline
- Connection
- OEM Electrical Connector
- Housing Material
- Metal/Plastic Composite
- Housing Color
- Black
- Weight
- 430 g (0.95 lb)
- Fitting Type
- OEM-style fittings
- Warranty
- 1 Year (Aftermarket)
- Other Technical Attributes
- For EFI systems only
What’s in the Box
- 1 x Fuel Pump Assembly
- 1 x Mounting Hardware (54-816311T)
Installation Notes
- Disconnect the negative battery terminal to prevent electrical shorts.
- Carefully relieve the pressure from the fuel system according to your service manual.
- Disconnect the fuel lines and electrical connector from the old pump assembly.
- Remove the mounting hardware and take out the old pump.
- Position the new fuel pump assembly and secure it with the provided hardware.
- Reconnect the fuel lines and the electrical connector, ensuring a tight seal.
- Reconnect the battery, prime the fuel system by turning the key to the 'On' position a few times, and check for leaks before starting the engine.
Troubleshooting & FAQ
How do I confirm this fuel pump fits my engine?
The best way to ensure compatibility is to match your original part number to one of the cross-references in our Part Number Matrix. Additionally, check our Engine & Model Compatibility table to verify your boat's engine model, horsepower, and serial number range.
What are the common signs of a failing fuel pump?
Symptoms of a faulty fuel pump include the engine failing to start, sputtering or losing power under acceleration, whining noises from the fuel tank area, or stalling unexpectedly. A diagnostic check of fuel pressure can confirm failure.
Is this pump for EFI or carbureted models?
This is an electric fuel pump designed specifically for use in Electronic Fuel Injection (EFI) systems. It is not compatible with older, carbureted engine models.
When should I replace my fuel pump?
Fuel pumps do not have a fixed replacement interval and should be replaced when they fail a pressure test or show clear signs of malfunction. It is also good practice to inspect or replace your fuel filters during the installation.
Is this a complete assembly?
Yes, this is a complete fuel pump assembly that comes ready to install as a direct replacement for the original unit. It includes all integrated components as shown in the product photos.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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