Mercruiser Inline Fuel Filter | Sierra 18-7721

Mercruiser Inline Fuel Filter | Sierra 18-7721

Sierra fuel filter fits Mercruiser MPI & EFI marine engines with boost pump.

• Mercruiser fuel filter
• Fits all MPI and EFI Mercruiser engines with boost pump
• 8.1L 496 cu. in.
• For 3/8 in. ID fuel lines
• Replaces Mercury 35-864572