Fuel Pump Assembly for Selected Mercury/Mariner 25–60 HP 4-Stroke EFI Outboards — Replaces 881862T1, 892874T01 and 899106T01
Fuel Pump Assembly for Selected Mercury/Mariner 25–60 HP 4-Stroke EFI Outboards — Replaces 881862T1, 892874T01 and 899106T01 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 Selected Mercury/Mariner 25–60 HP 4-Stroke E...
Fuel Pump Assembly for Selected Mercury/Mariner 25–60 HP 4-Stroke EFI Outboards — Replaces 881862T1, 892874T01 and 899106T01 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 in the 25–60 HP range. Catalog references identify applications including 30 and 40 HP 3-cylinder EFI models and 40, 50 and 60 HP 4-cylinder EFI models. Fitment depends on the exact engine model, serial-number range and original pump configuration.
Use the reference numbers and compatibility information below as a starting point, then compare the original pump, connector and mounting arrangement before ordering.
- Replacement fuel-pump assembly for selected Mercury and Mariner 4-stroke EFI outboards.
- Designed for a replacement installation when the pump configuration and connections match the original component.
- Aftermarket replacement; Mercury and Mariner names and part numbers are used only to identify application and cross-reference references.
Part Number Matrix
The following references are associated with this fuel-pump application in the available aftermarket catalog material. Part-number references do not replace model and serial-number verification.
| Brand or Source | Reference | Use |
|---|---|---|
| Mercury | 881862T1 | OEM reference |
| Mercury | 881862T07 | OEM reference |
| Mercury | 892874T | OEM reference |
| Mercury | 892874T01 | OEM reference |
| Mercury | 899106T | OEM reference |
| Mercury | 899106T01 | OEM reference |
| Mercury | 8M0118176 | Catalog reference |
| Mercury | 8M0141844 | Catalog reference |
| Sierra | 18-8866 | Aftermarket cross-reference |
Engine & Model Compatibility
Available catalog information supports the application groups below. The ranges are not a substitute for checking the complete engine model and serial number, because similar horsepower and cylinder-count configurations can use different components.
| Brand | Engine Configuration | Rated HP | Stroke | Application Note |
|---|---|---|---|---|
| Mercury | 3-cylinder EFI | 30 | 4-Stroke | Catalog-listed application group |
| Mercury | 3-cylinder EFI | 40 | 4-Stroke | Catalog-listed application group |
| Mercury | 4-cylinder EFI | 40 | 4-Stroke | Catalog-listed application group |
| Mercury | 4-cylinder EFI | 50 | 4-Stroke | Catalog-listed application group |
| Mercury | 4-cylinder EFI | 60 | 4-Stroke | Catalog-listed application group |
| Mariner | 3-cylinder EFI | 30 | 4-Stroke | Verify the exact model and serial number |
| Mariner | 3-cylinder EFI | 40 | 4-Stroke | Verify the exact model and serial number |
| Mariner | 4-cylinder EFI | 40 | 4-Stroke | Verify the exact model and serial number |
| Mariner | 4-cylinder EFI | 50 | 4-Stroke | Verify the exact model and serial number |
| Mariner | 4-cylinder EFI | 60 | 4-Stroke | Verify the exact model and serial number |
Technical Specs
- Product Type
- Fuel pump assembly
- Application
- Selected Mercury and Mariner 4-stroke EFI outboard engines
- Horsepower Range
- 25–60 HP application range; confirm the specific engine configuration
- Stroke
- 4-Stroke
- Fuel System
- EFI outboard fuel system
- Installation
- Replacement component; compare the original pump, fittings, connector and mounting points before installation
- Part Type
- Single fuel pump assembly, not a multi-part service kit
- Manufacturer Status
- Aftermarket replacement, not a genuine Mercury OEM component
What's in the Box
- 1 × aftermarket fuel pump assembly
Additional fittings, seals, wiring components or mounting hardware are not confirmed as included unless specifically shown in the product package or order details. Reuse original hardware only when it is serviceable and appropriate for the installation.
Installation Notes
- Confirm the engine brand, complete model designation, horsepower, stroke, cylinder count and serial-number range before beginning work.
- Disconnect the battery and follow the engine service manual's fuel-system safety procedures.
- Relieve fuel-system pressure before disconnecting fuel lines to reduce the risk of fuel spray.
- Compare the replacement pump with the original for connector style, hose connections, mounting points and physical orientation.
- Remove the original pump and install the replacement using appropriate serviceable hardware and the service manual's procedures.
- Reconnect the fuel lines and electrical connector securely. Replace damaged clamps, hoses or seals as required by the service manual.
- Reconnect the battery, prime the fuel system according to the manufacturer's procedure and inspect all connections for leaks.
- Do not operate the engine if fuel leakage, an incorrect connection or an abnormal pump condition is found.
Troubleshooting & FAQ
How do I confirm whether this pump fits my outboard?
Match the original pump's OEM reference, engine brand, complete model designation, horsepower, stroke, cylinder count and serial-number range. Also compare the connector, hose arrangement and mounting points. Horsepower alone is not sufficient to confirm fitment.
Is this a genuine Mercury OEM part?
No. This listing is for an aftermarket replacement. Mercury and Mariner references are provided only for application identification and cross-reference purposes.
Does the package include a cable tie, fittings or installation hardware?
The confirmed package item is one fuel pump assembly. Extra fittings, cable ties, seals and hardware should not be assumed to be included unless they are expressly listed with the order.
Can I install the pump without checking the fuel system?
No. Fuel-system work requires pressure relief, electrical isolation and leak inspection. Follow the applicable factory service manual, and use qualified marine service assistance if you are not familiar with fuel-system repairs.
What should I do if the engine still has a fuel problem after replacement?
Check fuel pressure, fuel delivery, wiring, filters, hoses, tank ventilation and related EFI components according to the service manual. A no-start or power-loss condition is not always caused by the fuel pump.
How can I verify an unlisted part number?
Contact support with a clear photo of the original pump and the complete engine model and serial information. Do not rely on a similar-looking pump or a partial part number alone.
Safety & Important Information
- Verify fitment against the complete engine model and serial number before purchase.
- Compare the replacement pump with the original component before installation.
- Work in a well-ventilated area away from ignition sources and properly contain spilled fuel.
- This is an aftermarket replacement, not a genuine Mercury OEM component.
- Professional installation is recommended for fuel-system work.
About Sea Sierra
- Marine Replacement Parts — We provide aftermarket components for marine repair and maintenance applications.
- Application-Focused Listings — Product references and compatibility information are provided to help you compare the replacement with your original part.
- Fitment First — Always verify the complete engine identification and component configuration before installation.
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