Fuel Pump Assembly for Mercury/Mariner 30–60 HP 4-Stroke EFI Outboards — Replaces 8M0141827, 899106T01 and 892874T
Fuel Pump Assembly for Mercury/Mariner 30–60 HP 4-Stroke EFI Outboards — Replaces 8M0141827, 899106T01 and 892874T 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.
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Fuel Pump Assembly for Mercury/Mariner 30–60 HP 4-Stroke EFI Outboa...
Fuel Pump Assembly for Mercury/Mariner 30–60 HP 4-Stroke EFI Outboards — Replaces 8M0141827, 899106T01 and 892874T is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket fuel pump assembly is intended for selected Mercury and Mariner 4-stroke EFI outboard applications rated from 30 HP to 60 HP. It is an engine-mounted, low-pressure fuel pump designed to deliver fuel from the tank to the vapor separator tank (VST) as part of the outboard fuel system.
Use the reference numbers and serial-number conditions below to verify compatibility before ordering. This is a replacement component, not a Mercury-branded OEM part.
- Engine-mounted low-pressure fuel pump assembly
- For selected gasoline-fueled 4-stroke EFI applications
- Direct-fit style replacement for the listed applications
- Single pump assembly; not a multi-piece kit
Part Number Matrix
The following manufacturer and aftermarket reference numbers are associated with this replacement listing. Confirm the number on your original pump and your engine serial number before purchase.
| Brand | Reference Part Number |
|---|---|
| Mercury | 8M0141827 |
| Mercury | 8M0118177 |
| Mercury | 899106T01 |
| Mercury | 892874T |
| Mercury | 881862T08 |
| Mercury | 881862T |
| Mercury | 8M4504411 |
| Sierra | 18-8866 |
Engine & Model Compatibility
Compatibility depends on the exact engine configuration and serial-number range. Match all applicable conditions rather than relying on horsepower alone.
| Brand | Model / Configuration | Rated HP | Stroke | Serial or Application Condition | Reference Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury/Mariner | 3-cylinder carbureted | 40 | 4-Stroke | USA 1B036614–1B344306; China 1C000001 and above | 8M0141827 | Verify the complete engine model and serial number. |
| Mercury/Mariner | 3-cylinder EFI | 40 | 4-Stroke | USA 0T409000 and above; China 1C000001 and above | 8M0141827 | Verify the complete engine model and serial number. |
| Mercury/Mariner | 4-cylinder EFI | 40/50/60 | 4-Stroke | USA 0T409000 and above; China 1C000001 and above | 8M0141827 | Verify the complete engine model and serial number. |
| Mercury/Mariner | 4-cylinder EFI | 30/40/50/60 | 4-Stroke | USA 1C000001–1C050251 | 899106T01 / 8M0118177 / 8M0141827 | Reference numbers may reflect supersession history. |
Technical Specifications
- Product Type
- Electric fuel pump assembly
- Installation
- Engine-mounted
- Fuel Type
- Gasoline
- Housing Material
- Metal and polymer composite
- Housing Color
- Black
- Dimensions
- 155 × 104 × 94 mm (6.1 × 4.1 × 3.7 in)
- Weight
- 0.43 kg (0.95 lb)
- Application
- Low-pressure fuel delivery for selected 4-stroke EFI outboards
What's in the Box
- 1 × Fuel pump assembly
Installation Notes
- Disconnect the boat battery and observe all marine fuel-system safety procedures.
- Relieve fuel-system pressure according to the applicable service manual.
- Disconnect the electrical connector and fuel lines from the original pump. Mark their positions and orientation before removal.
- Remove the fasteners and take the original pump assembly off the engine.
- Clean the mounting surface and install the replacement pump using the applicable manufacturer's torque specifications.
- Reconnect the fuel lines and electrical connector securely.
- Reconnect the battery, prime the fuel system as specified in the engine manual, and inspect carefully for leaks before starting the engine.
Troubleshooting & FAQ
How can I confirm that this is the correct fuel pump?
Compare the number on your original pump with the reference numbers in the Part Number Matrix, then confirm the engine brand, model configuration, stroke, horsepower and serial-number range in the compatibility table. If any of these details differ, verify the application with an appropriate service manual before ordering.
Is this a high-pressure or low-pressure pump?
This is a low-pressure lift pump. On applicable EFI systems, it moves fuel from the tank to the vapor separator tank (VST). A separate high-pressure pump supplies fuel from the VST to the injectors.
What are common symptoms of a failing low-pressure fuel pump?
Possible symptoms include hard starting, stalling at low speed, hesitation or bogging during acceleration, reduced power, rough running and failure to start. Fuel restrictions, wiring faults and other fuel-system problems can produce similar symptoms, so diagnose the complete system before replacing the pump.
How often should the fuel pump be replaced?
There is no universal replacement interval for this type of pump. Replacement is normally based on testing, failure symptoms or visible damage. Keeping the fuel system clean and using appropriate fuel storage practices can help reduce contamination-related problems.
Can I install this part myself?
Installation may be possible for an experienced technician with the correct tools and service information. Because the work involves gasoline and pressurized fuel-system components, professional installation is recommended if you are not familiar with marine fuel systems.
Is this an OEM part?
No. This listing is for an aftermarket replacement fuel pump assembly. The reference numbers are provided for application and comparison purposes and should not be interpreted as a claim that the replacement is manufactured by Mercury or Sierra.
Safety & Important Information
- Verify the original part, engine model, configuration and serial number before ordering.
- Do not install the pump if the connectors, mounting points or fuel-line connections do not match your original assembly.
- Inspect all fuel connections after installation and check for leaks before operating the engine.
- This is an aftermarket replacement component, not an OEM-branded component.
- Professional installation is recommended for fuel-system work.
About Sea Sierra
- Marine Replacement Parts — Replacement components for common marine repair and maintenance applications.
- Application-Focused Listings — Reference numbers and fitment conditions are provided to help customers compare parts before ordering.
- Support for Installation Planning — Always use the applicable engine service information for safety procedures and installation specifications.
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