Mercury Fuel Filter Kit – 40/50/60 HP EFI FourStroke | 8M0149607

Mercury Fuel Filter Kit – 8M0149607

Part Number: 8M0149607
Brand: Mercury Marine / Quicksilver
Official Product Type: Fuel Filter Kit – Cartridge Style, OEM
System: Fuel Delivery / Fuel Filtration
Superseded By: 8M0219171 – Mercury Fuel Filter Element (current replacement)

About This Kit

This is a genuine Mercury OEM fuel filter kit designed to remove dirt, debris, and contaminants from gasoline before it reaches the fuel injection system. The cartridge-style filter element mounts under the engine cowl and is a standard service item on Mercury EFI FourStroke outboards from the 2001–2012 production era. Keeping this filter fresh protects injectors, fuel rails, and downstream fuel system components from premature wear and clogging.

Compatible Applications

• Mercury 40 HP EFI FourStroke – Serial number 0T409000 and above
• Mercury 50 HP EFI FourStroke – 4-cylinder models
• Mercury 60 HP EFI FourStroke – 4-cylinder models
• Mariner 40/50/60 HP EFI FourStroke – equivalent model years

These engines were produced approximately 2001–2012 depending on configuration. Always verify fitment using your engine's serial number before ordering.

Serial Number / Fitment Note

Fuel system components vary by engine serial number range. Confirm your engine serial number against the Mercury parts diagram for your specific model before ordering. The serial number is located on the engine's transom bracket plate.

Supersedes / Replaced By

Part number 8M0149607 has been superseded by 8M0219171 as the current Mercury replacement. If your engine accepts the updated element, the 8M0219171 is the preferred in-production part. Check your parts diagram to confirm which version applies to your serial range.

Service Interval

Replace the fuel filter element annually or every 100 hours of operation, whichever comes first — or sooner if you notice rough running, hard starting, or reduced fuel flow. More frequent replacement is recommended when operating in areas with lower fuel quality or ethanol-blended fuels above E10.

Kit Contents

Includes the OEM fuel filter cartridge element and any associated seals or components as packaged by Mercury Marine. Confirm exact kit contents on the Mercury parts diagram for your engine model.

Technical FAQ

How do I know if my engine uses 8M0149607 or the newer 8M0219171?
Check your engine's serial number against the Mercury parts diagram. Both part numbers serve the same filter location; the 8M0219171 is the current production replacement. If your dealer or diagram shows 8M0219171, order that one.

Can I use an aftermarket fuel filter instead?
Mercury recommends OEM filtration to maintain fuel system integrity and warranty compliance. Aftermarket filters may not meet the same micron rating or seal specifications.

What happens if I skip this service item?
A clogged or degraded fuel filter restricts fuel flow to the injectors, causing lean running conditions, hard starting, rough idle, and in severe cases, injector damage. It is one of the lowest-cost, highest-impact service items on EFI outboards.

Parts Desk Insights

Best use case: This kit is the right call for customers doing annual or 100-hour service on Mercury 40–60 HP EFI FourStroke outboards from the 2001–2012 era. It's a straightforward service item that pairs well with an oil change and spark plug replacement at the same interval.

Common mistakes: The most frequent error is ordering this part without checking whether the engine has already been updated to the 8M0219171 filter style — the two are not always interchangeable without confirming the serial range. Also watch for customers confusing this with the inline fuel filter (the external canister-style filter on the fuel line) — this is the under-cowl cartridge element, not the inline filter.