Fuel Filter – Fits Mercury/Mercruiser 25HP–60HP EFI 4-Stroke (Replaces 35-8M0149607)
Fuel Filter – Fits Mercury/Mercruiser 25HP–60HP EFI 4-Stroke (Replaces 35-8M0149607) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Fuel Filter – Fits Mercury/Mercruiser 25HP–60HP EFI 4-Stroke (Repla...
Product Details
This is a cartridge-type Fuel Filter for Mercury/Mercruiser 25HP–60HP EFI 4-Stroke outboard engines (2001–2023). It is designed as an OEM-quality replacement for models with serial numbers 0T409000 and above, installing inline under the cowl to protect your EFI system from contaminants.
This component directly interchanges with Mercury part numbers 35-8M0149607, 8M0219171, and WSM 600-295K.
- Easy under-cowl inline installation.
- Vital part of the complete Mercury inline fuel filter assembly (35-879884T).
- Engineered for modern 4-stroke EFI gasoline fuel systems.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Mercury | 35-8M0149607 | Original part, superseded by 8M0219171 |
| Mercury | 8M0219171 | Current OEM replacement |
| WSM | 600-295K | Aftermarket cross-reference |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This filter fits specific Mercury EFI 4-Stroke models. Always verify your engine's serial number (must be 0T409000 or newer) and model details before ordering.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury | 4-Cyl EFI | 40 | 4-Stroke | 2001–2012 | 35-8M0149607 | Superseded by 8M0219171 |
| Mercury | 4-Cyl EFI | 50 | 4-Stroke | 2002–2012 | 35-8M0149607 | Superseded by 8M0219171 |
| Mercury | 4-Cyl EFI | 60 | 4-Stroke | 2002–2012 | 35-8M0149607 | Superseded by 8M0219171 |
| Mercury | EFI | 25 | 4-Stroke | 2006–2023 | 35-8M0149607 | Superseded by 8M0219171 |
| Mercury | EFI | 30 | 4-Stroke | 2006–2023 | 35-8M0149607 | Superseded by 8M0219171 |
| Mercury | EFI | 40 | 4-Stroke | 2013–2023 | 35-8M0149607 | Superseded by 8M0219171 |
| Mercury | EFI | 50 | 4-Stroke | 2013–2023 | 35-8M0149607 | Superseded by 8M0219171 |
| Mercury | EFI | 60 | 4-Stroke | 2013–2023 | 35-8M0149607 | Superseded by 8M0219171 |
Technical Specs
- Product Type
- Cartridge Fuel Filter Element
- Installation
- Under cowl, inline
- Fuel Type
- Gasoline (EFI systems)
- Dimensions
- Height: 3.5 cm, Width: 11.0 cm, Length: 15.0 cm
- Weight
- 0.01 kg (0.022 lbs)
- Other Technical Attributes
- Included in Mercury inline fuel filter assembly part #35-879884T
What’s in the Box
- 1 x Filter kit-fuel (35-8M0149607/8M0219171)
Installation Notes
- Release pressure from the fuel system following your engine's service manual procedures.
- Locate the fuel filter assembly under the engine cowl. Note the direction of the fuel flow arrow.
- Place a shop towel or container underneath the filter to catch any fuel spillage.
- Carefully disconnect the fuel lines from both ends of the old filter.
- Remove the old filter from its mounting bracket or clips.
- Install the new filter, making sure the flow arrow points in the correct direction (towards the engine).
- Securely reconnect the fuel lines and ensure all connections are tight.
- Prime the fuel system according to your manual's instructions and check for any leaks before starting the engine.
Troubleshooting & FAQ
How do I know if this filter fits my specific Mercury outboard?
This filter is for Mercury 25–60 HP EFI 4-Stroke outboards (2001–2023) with serial numbers 0T409000 and above. The best way to confirm is by checking your engine model and year in the compatibility table above or cross-referencing your existing part number.
What is the difference between part number 35-8M0149607 and 8M0219171?
Part number 35-8M0149607 was officially superseded by Mercury to part number 8M0219171. They are functionally identical and completely interchangeable. This part serves as a direct replacement for both.
How often should I replace this fuel filter?
For best results and to prevent fuel system issues, we recommend replacing the fuel filter annually or every 100 hours of engine operation, whichever comes first. Refer to your engine’s owner manual for manufacturer-specific service intervals.
What are the common signs of a dirty or clogged fuel filter?
Symptoms of a failing fuel filter include engine hesitation under acceleration, loss of power, rough idling, difficulty starting, or stalling. If you experience these issues, a clogged filter is a likely cause.
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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