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You may return most new, unopened items within 30 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.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
This inline fuel filter fits a range of Yamaha 4-9.9 HP 2-Stroke (1989-2002) and specific 4-Stroke models, including the F4A, F8A, F8B, and F9.9A/FT9.9A series. It is also used for the remote oil tanks on all Yamaha 2-Stroke and HPDI models. Additionally, this filter is compatible with Mercury 9.9 HP 2-Stroke outboards (1995-1998).
It serves as a direct replacement for multiple OEM and aftermarket parts, ensuring broad compatibility for routine maintenance and repairs.
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
Brand | Part Number | Superseded By |
---|---|---|
Yamaha | 646-24251-00-00 | 646-24251-01-00 |
Yamaha | 646-24251-01-00 | 646-24251-02-00 |
Yamaha | 646-24251-02-00 | |
Mercury | 35-80365M | |
Sierra | 18-7713 | |
Mallory | 9-37969 | |
Recmar | PAF4-05000300 |
Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.
Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.
Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
---|---|---|---|---|---|---|
Yamaha | 4A, 4B | 4 | 2-Stroke | 1989-1999 | 646-24251-01-00/646-24251-02-00 | |
Yamaha | 5C | 5 | 2-Stroke | 1997-2002 | 646-24251-01-00/646-24251-02-00 | |
Yamaha | 6C, 6D | 6 | 2-Stroke | 1986-2000 | 646-24251-01-00/646-24251-02-00 | |
Yamaha | 8C | 8 | 2-Stroke | 1989-2001 | 646-24251-01-00/646-24251-02-00 | |
Yamaha | F4A | 4 | 4-Stroke | 1999-2008 | 646-24251-01-00/646-24251-02-00 | |
Yamaha | F8A, F8B | 8 | 4-Stroke | 1999-2002 | 646-24251-01-00/646-24251-02-00 | |
Yamaha | F9.9A, F9.9BA | 9.9 | 4-Stroke | 1989-2002 | 646-24251-01-00/646-24251-02-00 | |
Yamaha | FT9.9A | 9.9 | 4-Stroke | 1988-1990 | 646-24251-01-00/646-24251-02-00 | High thrust model |
Yamaha | All Two-Stroke Models | Various | 2-Stroke | Various | 646-24251-01-00/646-24251-02-00 | Used on remote oil tanks |
Yamaha | HPDI Models | Various | 2-Stroke | Various | 646-24251-01-00/646-24251-02-00 | Used on remote oil tanks |
Mercury | 9.9 | 9.9 | 2-Stroke | 1995-1998 | 35-80365M |
Specification | Value |
---|---|
Product Type | Inline Fuel Filter |
Installation | Inline (under cowl) |
Fuel Type | Gasoline (including ethanol blends) |
Connection | Inline fuel line connection |
Housing Material | Marine-grade plastic |
Housing Color | Translucent |
Fitting Type | Barbed hose connectors |
Thread Size | N/A (press-fit) |
Other Technical Attributes | Directional flow (arrow must point toward fuel pump) |
Q: How do I confirm this filter fits my specific engine?
A: First, review the "Compatible Engine Models" table to see if your model and year range are listed. Then, cross-reference your existing part number with our "Part Number Cross-Reference" table. For added confidence, use the serial number guides for Yamaha and Mercury linked above to pinpoint your exact engine details.
Q: What are the symptoms of a clogged or failing fuel filter?
A: Common signs include difficulty starting, engine sputtering or stalling at low speeds, rough idling, hesitation during acceleration, and an overall loss of engine power. The translucent housing on this filter allows for a quick visual check for water or debris.
Q: How often should I replace my outboard's fuel filter?
A: For preventative maintenance, it is best practice to replace the fuel filter annually or every 100 hours of use, whichever comes first. Refer to your engine’s service manual for the manufacturer-recommended interval.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
We can ship to virtually any address in the world with free shipping available for most regions.
For our typical US and Canadian customers , our shipping timeframes are as follows:
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.
As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.
We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.
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