Inline Fuel Filter – Fits Mercury 30–60 HP 4-Stroke EFI Outboards – Replaces OEM 35-879884T
Inline Fuel Filter – Fits Mercury 30–60 HP 4-Stroke EFI Outboards – Replaces OEM 35-879884T is backordered and will ship as soon as it is back in stock.
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Inline Fuel Filter – Fits Mercury 30–60 HP 4-Stroke EFI Outboards –...
Inline Fuel Filter – Fits Mercury 30–60 HP 4-Stroke EFI Outboards – Replaces OEM 35-879884T is backordered and will ship as soon as it is back in stock.
Product Details
This inline fuel filter is a replacement filter for selected Mercury 30–60 HP 4-stroke EFI outboards. It is identified in engine parts catalogs as a fuel filter installed in the fuel-pump system and is listed for multiple 3-cylinder and 4-cylinder applications. Confirm the engine's exact serial-number range and the original filter number before ordering.
This replacement is designed for applications using Mercury OEM part number 35-879884T. The same reference is also listed in aftermarket marine catalogs as REC35-879884T.
- Inline fuel-filter design for selected 4-stroke EFI outboards.
- Applicable to specific Mercury 30, 40, 50, and 60 HP engine applications.
- Verify the OEM number and serial-number range before installation.
Part Number Matrix
Use the following verified reference to compare the replacement with your existing filter and engine parts catalog.
| Reference Type | Part Number |
|---|---|
| Mercury OEM reference | 35-879884T |
| Aftermarket catalog reference | REC35-879884T |
Engine & Model Compatibility
The fitment information below reflects catalog occurrences for Mercury 4-stroke EFI engines. Serial-number ranges remain part of the fitment condition; horsepower and cylinder count alone do not confirm compatibility.
| Brand | Model | Rated HP | Stroke | Serial Number Range | Catalog Part No. |
|---|---|---|---|---|---|
| Mercury | 30 EFI, 3-cylinder | 30 | 4-Stroke | 0T409000 through 1B226999 | 35-879884T |
| Mercury | 30 EFI, 3-cylinder | 30 | 4-Stroke | 0P153500 through 0P400999 | 35-879884T |
| Mercury | 30 EFI, 3-cylinder | 30 | 4-Stroke | 1C109093 and up | 35-879884T |
| Mercury | 40 EFI, 3-cylinder | 40 | 4-Stroke | 0T409000 through 1B226999 | 35-879884T |
| Mercury | 40 EFI, 3-cylinder | 40 | 4-Stroke | 1B227000 through 1B344398 | 35-879884T |
| Mercury | 40 EFI, 3-cylinder | 40 | 4-Stroke | 1C000001 through 1C043416 | 35-879884T |
| Mercury | 40 EFI, 3-cylinder | 40 | 4-Stroke | 1C043417 and up | 35-879884T |
| Mercury | 40 EFI, 4-cylinder | 40 | 4-Stroke | 0P153500 through 0P400999 | 35-879884T |
| Mercury | 40 EFI, 4-cylinder | 40 | 4-Stroke | 0P401000 through 0P515896 | 35-879884T |
| Mercury | 40 EFI, 4-cylinder | 40 | 4-Stroke | 0T409000 through 1B344306 | 35-879884T |
| Mercury | 40 EFI, 4-cylinder | 40 | 4-Stroke | 1C000001 through 1C050251 | 35-879884T |
| Mercury | 40 EFI, 4-cylinder | 40 | 4-Stroke | 1C050252 and up | 35-879884T |
| Mercury | 40 EFI, 4-cylinder | 40 | 4-Stroke | 0P515897 and up | 35-879884T |
| Mercury | 40 EFI, 4-cylinder Jet | 40 | 4-Stroke | 1C051324 and up | 35-879884T |
| Mercury | 50 EFI, 4-cylinder | 50 | 4-Stroke | 0T409000 through 1B344306 | 35-879884T |
| Mercury | 50 EFI, 4-cylinder | 50 | 4-Stroke | 0P153500 through 0P400999 | 35-879884T |
| Mercury | 50 EFI, 4-cylinder | 50 | 4-Stroke | 0P401000 through 0P515896 | 35-879884T |
| Mercury | 50 EFI, 4-cylinder | 50 | 4-Stroke | 0P515897 and up | 35-879884T |
| Mercury | 50 EFI, 4-cylinder | 50 | 4-Stroke | 1C000001 through 1C050251 | 35-879884T |
| Mercury | 50 EFI, 4-cylinder | 50 | 4-Stroke | 1C050252 and up | 35-879884T |
| Mercury | 60 EFI, 4-cylinder | 60 | 4-Stroke | 0T409000 through 1B344306 | 35-879884T |
| Mercury | 60 EFI, 4-cylinder | 60 | 4-Stroke | 0P153500 through 0P400999 | 35-879884T |
| Mercury | 60 EFI, 4-cylinder | 60 | 4-Stroke | 0P401000 through 0P515896 | 35-879884T |
| Mercury | 60 EFI, 4-cylinder | 60 | 4-Stroke | 0P515897 and up | 35-879884T |
| Mercury | 60 EFI, 4-cylinder | 60 | 4-Stroke | 1C000001 through 1C050251 | 35-879884T |
| Mercury | 60 EFI, 4-cylinder | 60 | 4-Stroke | 1C050252 and up | 35-879884T |
Technical Specifications
- Product Type
- Inline fuel filter
- Application
- Selected Mercury 4-stroke EFI outboards
- Applicable Horsepower
- 30, 40, 50, and 60 HP applications listed above
- Fuel Type
- Gasoline
- Installation Location
- Fuel-pump/fuel-system installation; confirm the original configuration before fitting
- OEM Reference
- 35-879884T
- Product Status
- Aftermarket replacement
What’s in the Box
- 1 × Inline fuel filter
Package contents are limited to the filter unless otherwise stated on the order or packaging. Fuel lines, clamps, seals, brackets, and other service parts are not included unless separately specified.
Installation Notes
- Confirm the engine brand, model, stroke, serial number, and original filter number before beginning work.
- Turn the engine off, allow it to cool, and disconnect the battery where appropriate.
- Work in a well-ventilated area away from flames, sparks, and other ignition sources.
- Place an approved container or fuel-absorbent material beneath the filter to catch fuel.
- Mark the inlet and outlet hose positions before disconnecting the fuel lines.
- Remove the existing filter and install the replacement in the same flow direction and orientation.
- Reconnect the fuel lines securely using suitable clamps or retaining hardware.
- Prime the fuel system according to the engine service procedure.
- Before operating the engine, inspect all connections for fuel leakage. Stop immediately if a leak is found.
Troubleshooting & FAQ
How do I confirm that this filter fits my engine?
Match the original filter's OEM number to 35-879884T, then confirm the engine's exact model, stroke, and serial-number range against the compatibility table. Horsepower alone is not sufficient to confirm fitment.
Is this filter for 2-stroke engines?
The verified catalog occurrences for this listing identify 4-stroke EFI applications. Do not install it on a 2-stroke engine unless the engine manufacturer's parts information specifically confirms the same part number.
Is this an OEM Mercury filter?
No. This is an aftermarket replacement associated with Mercury OEM reference 35-879884T. Mercury and other brand names are used only to identify the compatible engine application and reference part number.
What symptoms can indicate a restricted fuel filter?
Possible symptoms include hard starting, hesitation, loss of power, rough running, or stalling. These symptoms can have several causes, so inspect the complete fuel system and follow the engine service manual before replacing parts.
Does the package include seals, hoses, or clamps?
The standard package contains one inline fuel filter only. Seals, hoses, clamps, brackets, and other installation parts are not included unless specifically listed with the order.
Can I use the listed fitment without checking the serial number?
No. Several horsepower ratings have multiple serial-number ranges with separate catalog entries. Always compare the complete model and serial information before ordering.
Safety & Important Information
- Fuel is flammable. Relieve fuel-system pressure and follow the engine manufacturer's service procedure before removal.
- Verify the original part number, flow direction, connections, and physical configuration before installation.
- Do not use this listing to confirm fitment for an engine outside the applications and serial-number ranges shown above.
- Professional installation is recommended when the fuel-system service procedure is unfamiliar.
About Sea Sierra
- Marine Parts Focus — Replacement components for selected outboard and marine applications.
- Application-Focused Listings — Product references and fitment conditions are provided to support careful part matching.
- Customer Support — Contact support with your engine model, serial number, and original part number if you need help confirming the application.
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