Description
Sierra 10 Micron High-Capacity Fuel/Water Separating Filter – 18-7866
A 10-micron spin-on fuel/water separating filter for the listed marine engine and filter-head applications.
- Marine fuel/water separator construction
- Corrosion-resistant coated filter canister
- Designed for ethanol-blended gasoline service
- High-pleat filter media provides contaminant capacity
- Direct replacement by listed OEM/interchange numbers
Specifications
- Part number: 18-7866
- Product type: Spin-on fuel/water separating filter
- Micron rating: 10 micron
- Thread: 11/16-16
- Height: 6 in.
- Flow rating: 90 GPH
Interchange / Replaces
- Mallory: 9-37807
- Mercury Marine: 35-8M0154754
- Yamaha: MAR-10MEL-00-00, MAR-FUELF-IL-TR
Application / Fitment Notes
High-capacity filter for high-horsepower two-stroke and four-stroke Yamaha applications using the listed replacement numbers.

Ivan Pilgrim –