Fuel Pump Assembly for Mercury/Mariner 25–60 HP 4-Stroke EFI Outboards — Replaces 8M0141844, 8M0118176 and 881862T1
Fuel Pump Assembly for Mercury/Mariner 25–60 HP 4-Stroke EFI Outboards — Replaces 8M0141844, 8M0118176 and 881862T1 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Fuel Pump Assembly for Mercury/Mariner 25–60 HP 4-Stroke EFI Outboa...
Fuel Pump Assembly for Mercury/Mariner 25–60 HP 4-Stroke EFI Outboards — Replaces 8M0141844, 8M0118176 and 881862T1 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket fuel pump assembly is intended as a replacement for selected Mercury and Mariner 4-stroke EFI outboard applications. The referenced applications cover Mercury 25–60 HP engines, including 3-cylinder 30/40 HP EFI configurations and 4-cylinder 40/50/60 HP EFI configurations. Exact fitment depends on the engine configuration and serial-number range.
Use the original pump number, engine model, cylinder configuration and serial number to confirm compatibility before ordering. The assembly replaces the listed Mercury reference numbers where the application catalog identifies the same pump.
- Replacement fuel pump assembly for selected 4-stroke EFI outboards.
- Designed for direct replacement when the original part number and application conditions match.
- Sold as one fuel pump assembly; mounting hardware and other engine-specific components are not included unless separately stated.
Verified Reference Numbers
The following manufacturer reference numbers are associated with this pump application in the available catalog material. Reference numbers alone do not replace model and serial-number verification.
| Manufacturer | Reference Number |
|---|---|
| Mercury | 8M0141844 |
| Mercury | 8M0118176 |
| Mercury | 881862T1 |
| Mercury | 881862T07 |
| Mercury | 892874T |
| Mercury | 899106T |
Engine Compatibility
The application references available for this fuel pump include the following Mercury 4-stroke EFI configurations. Because Mercury fitment changes by serial-number range and production configuration, treat this table as an application guide rather than a universal fitment statement.
| Brand | Configuration | Rated HP | Stroke | Fitment Conditions |
|---|---|---|---|---|
| Mercury | 3-cylinder EFI | 30–40 HP | 4-Stroke | Confirm the engine serial-number range and original pump number. |
| Mercury | 4-cylinder EFI | 40–60 HP | 4-Stroke | Confirm the engine serial-number range and original pump number. |
| Mercury | 25 HP application | 25 HP | 4-Stroke | Catalog occurrences exist for specific serial ranges; verify the exact serial number before purchase. |
| Mariner | Equivalent 4-stroke EFI platforms | 25–60 HP | 4-Stroke | Only applicable where the original pump reference and engine serial-number conditions match. |
Do not rely on horsepower alone. Compare the pump's connections, mounting arrangement, original reference number and complete engine serial number with the service information for your outboard.
Technical Specifications
- Product Type
- Fuel pump assembly
- Application
- Selected Mercury and Mariner 4-stroke EFI outboards
- Rated Engine Range
- 25–60 HP applications, subject to model and serial-number conditions
- Replacement Type
- Aftermarket replacement
- Package Quantity
- 1 fuel pump assembly
What's in the Box
- 1 × Fuel pump assembly
Reuse only the original hardware and ancillary components that are in serviceable condition and specified for your engine. Any gaskets, fasteners, hoses, clamps or wiring components not shown above are not confirmed as included.
Installation Notes
- Disconnect the battery and relieve fuel-system pressure according to the engine service manual.
- Before removal, identify the fuel-line routing and electrical connections.
- Disconnect the fuel lines and electrical connector, taking appropriate precautions to prevent fuel spills.
- Remove the original pump and compare the replacement's mounting points, connections and reference number.
- Install the replacement using the correct engine-specific hardware and any required serviceable seals.
- Reconnect the fuel lines and electrical connector securely and confirm correct routing.
- Prime the fuel system according to the manufacturer's procedure.
- Inspect all connections for leaks before operating the engine and recheck them after the engine reaches operating temperature.
Fuel-system work should be performed by a qualified technician or by a person familiar with marine fuel-system safety procedures.
Troubleshooting & FAQ
How do I confirm that this pump fits my engine?
Match the original pump reference number, engine brand, model, horsepower, stroke, cylinder configuration and complete serial number. The 25–60 HP range by itself is not sufficient to confirm fitment.
Which reference numbers are associated with this replacement?
The available application information associates this replacement with 8M0141844, 8M0118176, 881862T1, 881862T07, 892874T and 899106T. Verify the number on your original pump and the engine serial-number range before ordering.
Is this an OEM part?
No. This listing is for an aftermarket replacement assembly. Mercury reference numbers are shown only for application and cross-reference purposes.
Does the package include mounting hardware or a cable tie?
The confirmed package content is one fuel pump assembly. Mounting hardware, cable ties, seals and other installation items are not confirmed as included unless specifically shown in the package contents.
Can I install it myself?
Installation involves fuel, electrical connections and possible fuel pressure. Follow the engine service manual and applicable marine safety procedures, or use a qualified marine technician.
What are common symptoms of a failing fuel pump?
Possible symptoms include hard starting, stalling, hesitation, loss of power under load and inadequate fuel pressure. These symptoms can also result from restricted filters, damaged wiring, injector problems or other fuel-system faults, so diagnosis should be completed before replacement.
Is programming required after installation?
A fuel pump replacement normally does not require electronic programming, but the installation and fuel-system priming procedure specified for the particular engine must be followed.
Safety & Important Information
- Verify the complete engine serial number and original pump reference before purchase.
- Do not install the part if the connections, mounting arrangement or original reference do not match.
- Relieve fuel pressure, avoid ignition sources and work in a properly ventilated area.
- This is an aftermarket replacement and is not manufactured by Mercury or Mariner.
About Sea Sierra
- Marine replacement parts selected for practical repair and maintenance applications.
- Clear reference-number and fitment guidance to help customers compare replacement parts.
- Support for customers who need help matching a part to a marine engine application.
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