Inline Fuel Filter Assembly – Fits Mercury/Mariner 30-60HP (Replaces 35-879884T, 879884T)
Inline Fuel Filter Assembly – Fits Mercury/Mariner 30-60HP (Replaces 35-879884T, 879884T) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Free standard shipping on all orders under 1 KG
Inline Fuel Filter Assembly – Fits Mercury/Mariner 30-60HP (Replace...
Product Details
This Inline Fuel Filter Assembly – Fits Mercury/Mariner Outboard 30-60HP (Replaces 35-879884T, 879884T) is designed to protect your engine by filtering out harmful contaminants from your fuel supply. It is engineered for Mercury/Mariner 30-60HP, 4-Stroke, EFI outboard engines from 2000 and newer with serial numbers 0T409000 and above.
It serves as a direct replacement for Mercury Marine part numbers 35-879884T and 879884T, Quicksilver 879884T, and Sierra 18-79965.
- Installs inline under the engine cowl for easy access.
- Features a 20-micron filter element to trap fine particles.
- The translucent bowl allows for quick visual inspection of fuel condition and contaminants.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury Marine | 35-879884T |
| Mercury Marine | 879884T |
| Quicksilver | 879884T |
| Sierra | 18-79965 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This part is designed for specific Mercury and Mariner outboard models. Please verify your engine's serial number against the ranges provided to ensure an exact match.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury | Outboard | 30HP | 4-Stroke | 2014 and up (1C456300 & Up) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 30HP | 4-Stroke | 2000–2014 (0T409000 THRU 1B226999) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 30HP | 4-Stroke | 2000–2014 (0P153500 THRU 0P400999) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 30HP | 4-Stroke | 2000–2014 (1C109093 THRU 1C456299) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI JET | 35HP | 4-Stroke | 2014 and up (1C453840 & Up) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2000–2014 (0T409000 THRU 1B226999) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2000–2014 (1B227000 THRU 1B355027) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2000–2014 (0P153500 THRU 0P400999) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2000–2014 (0P401000 THRU 0P515896) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2000–2014 (0P515897 THRU 0P580772) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2000–2014 (0P515897 THRU 1C453839) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2000–2014 (1C000001 THRU 1C043416) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2000–2014 (1C000001 THRU 1C049738) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2000–2014 (1C000001 THRU 1C050251) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2000–2014 (1C043417 THRU 1C456299) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2000–2014 (1C049739 & Up) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2000–2014 (1C050252 THRU 1C453839) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 40HP | 4-Stroke | 2014 and up (1C456300 & Up) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI JET | 40HP | 4-Stroke | 2000–2014 (1C051324 THRU 1C453839) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI Sea Pro | 40HP | 4-Stroke | 2014 and up (1C453840 & Up) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 50HP | 4-Stroke | 2000–2014 (0T409000 THRU 1B355222) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 50HP | 4-Stroke | 2000–2014 (0P153500 THRU 0P400999) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 50HP | 4-Stroke | 2000–2014 (0P401000 THRU 0P515896) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 50HP | 4-Stroke | 2000–2014 (0P515897 THRU 0P580772) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 50HP | 4-Stroke | 2000–2014 (1C000001 THRU 1C050251) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 50HP | 4-Stroke | 2000–2014 (1C050252 THRU 1C453839) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 50HP | 4-Stroke | 2014 and up (1C453840 & Up) | 879884T | FUEL PUMP |
| Mariner | Outboard | 50HP | 4-Stroke | 2010 (7E51413VZ) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 60HP | 4-Stroke | 2000–2014 (0T409000 THRU 1B355222) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 60HP | 4-Stroke | 2000–2014 (0P153500 THRU 0P400999) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 60HP | 4-Stroke | 2000–2014 (0P401000 THRU 0P515896) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 60HP | 4-Stroke | 2000–2014 (0P515897 THRU 0P580772) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 60HP | 4-Stroke | 2000–2014 (1C000001 THRU 1C050251) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 60HP | 4-Stroke | 2000–2014 (1C050252 THRU 1C453839) | 879884T | FUEL PUMP |
| Mercury | Outboard EFI | 60HP | 4-Stroke | 2014 and up (1C453840 & Up) | 879884T | FUEL PUMP |
| Mariner | Outboard | 60HP | 4-Stroke | 2007 (7E60452IZ) | 879884T | FUEL PUMP |
| Mariner | Outboard | 60HP | 4-Stroke | 2010 (7E60413VZ) | 879884T | FUEL PUMP |
| Mercury | Outboard Formula | 60HP | 4-Stroke | 2014 and up (1C104574 & Up) | 879884T | FUEL PUMP |
| Mercury | Outboard Racing | 60R | 4-Stroke | 2014 and up (1C615064 & Up) | 879884T | FUEL PUMP |
| Mercury | Outboard Sea Pro | 60HP | 4-Stroke | 2014 and up (1C453840 & Up) | 879884T | FUEL PUMP |
Technical Specs
- Product Type
- Inline Cartridge Fuel Filter Assembly
- Installation
- Under-cowl, inline
- Filtration Rating
- 20 micron
- Fuel Type
- Gasoline
- Connection
- Inline
- Housing Material
- Plastic with translucent bowl
- Housing Color
- Clear (bowl), Black (top)
- Fitting Type
- Screw-on type filter bowl
- Other Technical Attributes
- Translucent bowl allows for visual inspection of fuel condition
- Warranty
- Varies by manufacturer: Genuine Mercury (1 year), Aftermarket (typically 90 days)
What’s in the Box
- 1 x Cartridge Type Fuel Filter Assembly (879884T)
Installation Notes
- Ensure the engine is off and cool. Disconnect the battery for safety.
- Work in a well-ventilated area and have a fire extinguisher nearby.
- Place a rag or container under the old filter to catch any spilled fuel.
- Locate the existing fuel filter assembly under the engine cowl.
- Carefully disconnect the fuel lines from both ends of the old filter. Note their orientation.
- Remove the old filter from its mounting bracket, if applicable.
- Install the new filter assembly, ensuring the fuel flow direction (often marked with an arrow) is correct.
- Securely reconnect the fuel lines to the new filter.
- Hand-tighten the clear bowl. Do not overtighten.
- Prime the fuel system according to your engine's manual.
- Check thoroughly for any leaks at the connections.
- Reconnect the battery, start the engine, and check for leaks again while it idles.
Troubleshooting & FAQ
How do I confirm this filter fits my engine?
First, check the Part Number Matrix to see if your old filter's number is listed. Second, review the Engine & Model Compatibility table to find your engine's model, HP, and year. Pay close attention to serial number ranges, as they are crucial for a correct fit.
What are the signs of a clogged or failing fuel filter?
Common symptoms include the engine struggling to start, stalling at low speeds, rough idling, misfiring, or a general loss of power, especially under acceleration. You may also see debris or water collected in the clear viewing bowl.
How often should this fuel filter be replaced?
Replacement intervals can vary based on fuel quality and usage. A good practice is to visually inspect the filter bowl regularly for water or sediment and replace the assembly at least once a year or every 100 hours of operation, whichever comes first.
Can I just clean the filter element instead of replacing the whole assembly?
No, this is a cartridge-style assembly designed for complete replacement. The filter element is not sold separately and attempting to clean it is not effective and can damage the filter media, risking engine damage.
Why does the compatibility table list so many entries for the same HP engine?
Manufacturers often use different parts for the same model and horsepower based on the production year, serial number range, or specific sub-model (like EFI, JET, or Sea Pro). Each entry represents a unique factory configuration where this part is applicable.
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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