Sierra 18-7866 High Capacity Fuel Water Separator Filter 10 Micron

The Sierra 18-7866 is a high-capacity fuel water separator filter designed to remove over 99.8% of emulsified water from gasoline while filtering harmful particulates. This 10-micron filter is engineered for high-performance fuel-injected marine engines, including inboards, sterndrives, and 2-stroke and 4-stroke outboards.

Key Features:

• Over 90% efficient at removing particles as small as 10 micron
• 90 GPH flow rate to feed even the hungriest motor
• Independently tested to JIS, SAE J1839/J905 and ISO 4548-12 standards
• High capacity 6-inch (152.4mm) filter size
• Thread pitch: 11/16-16
• Approved for use with Yamaha HPDI engines
• Epoxy coated steel canister prevents corrosion

Ethanol-blended fuel absorbs more water and loosens more particulates than regular fuel, making proper filtration critical for protecting sensitive fuel injection systems. Pressure and leak tested to ABYC and USCG standards. Replaces Yamaha MAR-10MEL-00-00 and MAR-FUELF-IL-TR, Mallory 9-37807, and Mercury Marine 35-8M0154754.