Fuel Filter Element – Fits MerCruiser 5.0L, 5.7L, 6.2L, 8.1L, 8.2L Engines (Replaces 35-866171A01, 8M0093688)
Fuel Filter Element – Fits MerCruiser 5.0L, 5.7L, 6.2L, 8.1L, 8.2L Engines (Replaces 35-866171A01, 8M0093688) 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
Fuel Filter Element – Fits MerCruiser 5.0L, 5.7L, 6.2L, 8.1L, 8.2L ...
Product Details
This replacement Fuel Filter Element – Fits MerCruiser 5.0L, 5.7L, 6.2L, 8.1L, 8.2L Engines is designed for optimal filtration and engine protection. It is specifically engineered for Mercury MerCruiser 5.0L to 8.2L V8 engines (2004 and newer) equipped with the GEN III Cool Fuel System, ensuring clean fuel delivery for reliable performance.
This part directly replaces Mercury/Quicksilver part numbers 35-866171A01 and 8M0093688, along with Sierra 18-7977 and JLM Marine AM35-866171A01.
- Protects fuel injectors from damaging contaminants.
- Installs internally within the GEN III Cool Fuel module housing.
- Engineered for gasoline-fueled marine environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury / Quicksilver | 35-866171A01 |
| Mercury / Quicksilver | 8M0093688 |
| Sierra | 18-7977 |
| JLM Marine | AM35-866171A01 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For MerCruiser models, this filter fits V8 engines from 2004 onwards that use the Generation 3 Cool Fuel system.
| Brand | Model | Stroke | Years |
|---|---|---|---|
| Mercury MerCruiser | 5.0L, 5.7L, 6.2L, 8.1L, & 8.2L V8 Engines with GEN III Cool Fuel System | 4-Stroke | 2004–Newer |
Technical Specs
- Product Type
- Fuel Filter Element
- Installation
- Internal (within GEN III Cool Fuel module housing)
- Fuel Type
- Gasoline
- Connection
- Direct fit to Cool Fuel Module housing
- Housing Material
- Filter paper with plastic/metal endcaps
- Product Dimensions
- 9.0" L x 6.0" W x 6.0" H
What’s in the Box
- 1x Fuel Filter Element
Installation Notes
- Shut off the engine and disconnect the battery.
- Relieve the fuel system pressure following your manufacturer's service manual procedures.
- Locate the GEN III Cool Fuel module and carefully remove its housing cover.
- Remove the old fuel filter element, noting its orientation. Be prepared for some fuel spillage.
- Clean the inside of the housing and inspect the O-ring seals for any damage; replace if necessary.
- Install the new filter element in the correct position.
- Securely reinstall the housing cover.
- Reconnect the battery, prime the fuel system, and start the engine.
- Carefully check the module and fuel lines for any leaks.
Troubleshooting & FAQ
How do I know if this fuel filter fits my engine?
This filter is for MerCruiser 5.0L–8.2L V8 engines from 2004 and newer that have a GEN III Cool Fuel System. Please verify your engine has this specific fuel module before ordering.
What are the signs of a clogged fuel filter?
Common symptoms include engine hesitation, loss of power, difficulty starting, rough idling, or stalling, especially under load.
How often should I replace my fuel filter?
For preventative maintenance, it's recommended to replace the fuel filter annually or every 100 hours of operation, whichever comes first. Refer to your engine's service manual for specific intervals.
Can I clean and reuse this fuel filter?
No. This is a disposable filter element. Attempting to clean it can damage the filter media and introduce contaminants into your fuel system, leading to engine damage.
Is any special tool required for installation?
Basic hand tools are typically sufficient to access and open the Cool Fuel module. However, a fuel pressure gauge is recommended to safely relieve system pressure before service.
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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