Hydrofoil Stabilizer – Fits Outboard Motors & Stern Drives 40-300 HP (Replaces UANOFCN FO2003, SeaSierra 300, SE Sport 300) 55HP Sierra 18-2772-1 Aftermarket Cross-Reference Mallory

Sierra 18-2772-1 Aftermarket Cross-Reference Mallory 9-72931 Aftermarket Cross-Reference JLM Marine 17400-87L00 Aftermarket Cross-Reference

this groove catches the keel and guides it into the center

Brand Part Number STIFFIE Shift SH03 QuickMarine Alpha-Numeric Registration Kit UanofCn 3" Boat Registration Numbers and Letters NorthBoat 3" Boat Letters Numbers Stickers

Some third-party sellers

5 mm max Thread Size N/A (cartridge-style insertion) Warranty 1 Year (aftermarket)

Hydrofoil Stabilizer – Fits Outboard Motors & Stern Drives 40-300 HP (Replaces UANOFCN FO2003, SeaSierra 300, SE Sport 300) 55HP Sierra 18-2772-1 Aftermarket Cross-Reference MalloryProduct Details This marine grade reinforced nylon PA66 Whale Tail Hydrofoil Stabilizer (FO2003) is engineered to significantly improve boat handling, reduce bow lift, shorten planing time, and increase fuel economy. It is designed for universal fitment on most outboard motors and stern drives ranging from 40 to 300 horsepower. It serves as a direct replacement for interchange part numbers including UANOFCN FO2003, SeaSierra 300 Whale Tail, SE Sport