Fuel Pump Assembly – Fits Mercury/Mariner 25-60 HP 4-Stroke Outboards (Replaces 881862T1, 892874T01, 899106T01)
Fuel Pump Assembly – Fits Mercury/Mariner 25-60 HP 4-Stroke Outboards (Replaces 881862T1, 892874T01, 899106T01) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
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Fuel Pump Assembly – Fits Mercury/Mariner 25-60 HP 4-Stroke Outboar...
Fuel Pump Assembly – Fits Mercury/Mariner 25-60 HP 4-Stroke Outboards (Replaces 881862T1, 892874T01, 899106T01) is backordered and will ship as soon as it is back in stock.
Product Details
This high-quality Fuel Pump Assembly fits Mercury/Mariner 25-60 HP 4-Stroke Outboards manufactured between 2000–2021. It is designed for both 3-cylinder and 4-cylinder EFI models, ensuring reliable fuel delivery for a wide range of engines.
It serves as a direct replacement for multiple OEM part numbers, including Mercury 881862T1, 892874T01, and 899106T01, along with various aftermarket equivalents.
- Installation is straightforward with a direct plug-and-play electrical connection.
- Built to meet or exceed original factory specifications using high-grade materials.
- Compatible with standard gasoline and E10 ethanol blends.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 881862T1, 881862T07, 881862T08 |
| Mercury | 892874T, 892874T01 |
| Mercury | 899106T, 899106T01 |
| Mercury | 8M0118176, 8M0118177, 8M0141827, 8M0141844 |
| Sierra | 18-8866 |
| WSM | 600-092 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Mercury Engines: This pump fits a range of 3-cylinder and 4-cylinder EFI models from 30 HP to 60 HP, covering years 2002 through 2021.
For Mariner Engines: Compatibility includes various 3-cylinder and 4-cylinder EFI outboards from 30 HP to 60 HP, also covering years 2002 through 2021.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury | 3 Cylinder EFI | 30 | 4-Stroke | 2002–2021 | 8M0118176/8M0141844 | |
| Mercury | 3 Cylinder EFI | 35 | 4-Stroke | 2009–2014 | 8M0118176/8M0141844 | |
| Mercury | 3 Cylinder EFI | 40 | 4-Stroke | 2002–2013 | 8M0118176/8M0141844 | |
| Mercury | 4 Cylinder EFI | 40 | 4-Stroke | 2002–2012 | 8M0118176/8M0141844 | |
| Mercury | 4 Cylinder EFI | 45 | 4-Stroke | 2002–2012 | 8M0118176/8M0141844 | |
| Mercury | 4 Cylinder EFI | 50 | 4-Stroke | 2002–2021 | 8M0118176/8M0141844 | |
| Mercury | 4 Cylinder EFI | 55 | 4-Stroke | 2002–2021 | 8M0118176/8M0141844 | |
| Mercury | 4 Cylinder EFI | 60 | 4-Stroke | 2002–2021 | 8M0118176/8M0141844 | |
| Mariner | 3 Cylinder EFI | 30 | 4-Stroke | 2002–2021 | 8M0118176/8M0141844 | |
| Mariner | 3 Cylinder EFI | 40 | 4-Stroke | 2002–2013 | 8M0118176/8M0141844 | |
| Mariner | 4 Cylinder EFI | 40 | 4-Stroke | 2002–2012 | 8M0118176/8M0141844 | |
| Mariner | 4 Cylinder EFI | 50 | 4-Stroke | 2002–2021 | 8M0118176/8M0141844 | |
| Mariner | 4 Cylinder EFI | 60 | 4-Stroke | 2002–2021 | 8M0118176/8M0141844 |
Technical Specs
- Product Type
- Fuel Pump Assembly
- Installation
- Direct Replacement
- Fuel Type
- Gasoline/Petrol (including E10)
- Connection
- Direct Plug & Play
- Housing Material
- High-Grade Plastic
- Housing Color
- Black
- Dimensions
- 120 × 100 × 85 mm (4.72 × 3.94 × 3.35 in)
- Weight
- 0.432 kg (0.95 lb)
- Fitting Type
- OEM Compatible Connections
- Other Attributes
- Manufactured to OEM specifications using same materials as originals
- Warranty
- Manufacturer dependent - typically 1 year
What’s in the Box
- 1 x Fuel pump assembly (8M0118176/8M0141844)
- 1 x Cable tie (54-816311T)
Installation Notes
- Disconnect the negative battery terminal and ensure the work area is well-ventilated.
- Safely relieve pressure from the fuel system according to your engine's service manual.
- Place absorbent rags below the fuel pump to catch any residual fuel.
- Carefully disconnect the fuel lines and the main electrical connector from the old pump assembly.
- Remove the mounting bolts or hardware securing the old assembly and remove it from the engine.
- Clean the mounting surface before installing the new pump.
- Position the new fuel pump assembly, ensuring it is seated correctly, and secure it with the original hardware.
- Reconnect the fuel lines and electrical connector, making sure all connections are tight.
- Reconnect the negative battery terminal.
- Prime the fuel system by cycling the ignition key to the 'on' position a few times, waiting a few seconds between cycles.
- Start the engine and carefully inspect for any fuel leaks around the pump and its connections before resuming operation.
Troubleshooting & FAQ
How can I confirm this pump fits my specific engine?
Check your engine's model, horsepower, and year against the "Engine & Model Compatibility" table above. You can also verify that your existing part number is listed in our "Part Number Matrix" to ensure it is a correct cross-reference.
What are common symptoms of a failing fuel pump?
Signs of a bad fuel pump include difficulty starting the engine, sputtering or hesitation at high speeds, a noticeable loss of power, or a constant whining noise coming from the fuel pump's location.
Is this pump compatible with E10 fuel?
Yes, this fuel pump is designed to safely handle both standard unleaded gasoline and gasoline blends containing up to 10% ethanol (E10).
Is any calibration required after installing this new pump?
No, this is a direct-fit replacement component. No special programming or calibration is needed. It is designed to work with your engine's existing systems via a simple plug-and-play electrical connection.
What typically causes a marine fuel pump to fail?
Common causes of premature failure include regularly running the engine on a low fuel tank (the pump uses fuel for cooling), contaminated fuel containing water or debris, and underlying electrical issues in the boat's wiring.
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.
Payment & Security
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