Sierra 118-7981 Marine Fuel Filter Element for Mercury Outboards

The Sierra 18-7981 is a replacement fuel filter cartridge designed for Mercury Optimax and Verado outboards as well as MerCruiser sterndrive engines that utilize a vapor separator with a top screw-in type filter. This filter element is engineered to provide ultimate water separation, fuel filtration, and maximum fuel flow required by high-performance marine engines.

Key Features:

• 21-micron filtration efficiently removes particulate contamination before it reaches your engine
• 90% efficient at removing particulate contamination while maintaining required fuel flow
• Engineered with premium grade materials that excel in the extreme marine environment
• Designed as a direct replacement for original cartridge elements installed on Mercury engines
• Tested to meet or exceed OEM specifications for filtration efficiencies and fitment
• Manufactured from quality materials to provide efficient filtration without flow restriction

OEM Cross-References:

• Mercury Marine: 35-884380T, 35-8M0020349, 35-8M0060041
• MerCruiser Stern Drive: 35-8M0060041, 35-8M0122423
• Mallory: 9-37970

Each Sierra product meets or exceeds the original equipment part it replaces. This filter should be inspected at regular recommended service intervals and replaced as needed to ensure optimal engine performance and protection.