Mercruiser Fuel Filter REC981911 – Fits Mercruiser Engines (Replaces 981911)
Mercruiser Fuel Filter REC981911 – Fits Mercruiser Engines (Replaces 981911) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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.).
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.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Mercruiser Fuel Filter REC981911 – Fits Mercruiser Engines (Replace...
Product Details
This Mercruiser Fuel Filter REC981911 is designed for Mercruiser sterndrive and inboard engines, serving as a high-quality contaminant removal component for your marine fuel system. It ensures clean fuel reaches the engine, protecting critical components and maintaining performance.
It is a direct replacement for Mercruiser 981911, Quicksilver 35-981911, and Sierra 18-7979.
- Features an in-line installation design for straightforward setup.
- Incorporates a water-separating design to protect the engine from moisture.
- Engineered for use with gasoline fuel systems.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercruiser | 981911 |
| Quicksilver | 35-981911 |
| Sierra | 18-7979 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This filter fits select Mercruiser engines. Note that some engine models, particularly the 4.3L series, may use different filters depending on the year and specific configuration. Always verify your existing part number.
| Brand | Model | OEM Part No. | Notes |
|---|---|---|---|
| Mercruiser | 2.5L | 981911 | Mentioned in related filters |
| Mercruiser | 3.0L | 981911 | Mentioned in related filters |
| Mercruiser | 3.7L | 981911 | Mentioned in related filters |
| Mercruiser | 4.3L (Some models) | 981911 | Some 4.3L models use different filters |
Technical Specs
- Product Type
- Fuel Filter
- Installation
- In-line
- Fuel Type
- Gasoline
- Other Technical Attributes
- Water-separating design
- Dimensions
- Height: 50 mm (5.0 cm), Width: 91.3 mm (9.13 cm), Length: 30 mm (3.0 cm)
- Weight
- 0.14 kg (0.31 lbs)
What’s in the Box
- 1 x Fuel Filter (REC981911/981911)
Installation Notes
- Shut off the fuel supply to the engine.
- Place an absorbent rag under the old filter to catch any fuel spills.
- Carefully loosen and disconnect the fuel lines from the old filter.
- Remove the old filter from its mounting bracket.
- Install the new filter, ensuring the fuel flow direction is correct.
- Securely reconnect the fuel lines.
- Turn the fuel supply back on and prime the system if necessary.
- Start the engine and check thoroughly for any leaks around the filter and connections.
Troubleshooting & FAQ
How do I know if this filter fits my engine?
The best way to ensure fitment is to match the part number from your old filter to the ones listed in our Part Number Matrix (Mercruiser 981911, Quicksilver 35-981911, Sierra 18-7979). While this filter fits many 2.5L, 3.0L, 3.7L, and 4.3L Mercruiser engines, it's critical to verify because some models use different parts.
What is the recommended replacement interval?
For optimal engine protection, it is recommended to replace your fuel filter annually or every 100 hours of operation, whichever comes first. This is a standard marine maintenance practice.
What are the signs of a failing or clogged fuel filter?
Common symptoms include engine sputtering, difficulty starting, rough idling, reduced power, or stalling, especially under load. If you experience these issues, a clogged fuel filter is a likely cause.
How is this aftermarket filter different from the OEM part?
Our filter is engineered to meet or exceed OEM specifications for fit, form, and function. It provides the same level of filtration and water-separation performance using comparable materials but at a more competitive price point.
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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