FASWORX Powerhead Gasket Set for Johnson Evinrude OMC 3-Cylinder 50 60 65 70 HP Outboard Motors (1986-2001) - Replaces OEM 0438904 398047 777421, Sierra 18-4321 - Marine Engine Rebuild Seal Kit

Key features

• DIRECT REPLACEMENT FIT: Compatible with Johnson, Evinrude, and OMC 3-Cylinder (913 cc) outboard motors. Explicitly fits 50 HP (1995–2001), 60 HP (1986–2001), 65 HP Commercial (1987–2001), and 70 HP (1986–2001).
• EXACT OEM MATCH: Seamlessly replaces original equipment part numbers 0438904, 438904, 398047, 0398047, and 777421. Also replaces standard aftermarket cross-references including Sierra 18-4321, GLM 39390, and Mallory 9-64101.
• COMPLETE REBUILD SET: This powerhead gasket kit provides everything required for a secure assembly. It typically includes the cylinder head gasket, intake and exhaust gaskets, carburetor gaskets, air silencer gasket, and thermostat cover gasket.
• PREMIUM DURABILITY: Manufactured to meet or exceed strict OEM marine specifications. The FASWORX gasket set delivers a reliable, leak-proof seal that restores maximum engine compression and withstands harsh saltwater and freshwater environments.
• CRITICAL FITMENT NOTE: Designed strictly for 3-Cylinder engines. This kit will NOT fit 2-Cylinder 50 HP or 60 HP outboards. Please verify your exact engine year, horsepower, and cylinder count before purchasing to prevent return hassles.

Restore Your Outboard’s Peak Performance with FASWORX Whether you are doing routine maintenance or a complete engine overhaul, the FASWORX Powerhead Gasket Set is engineered to get your boat back on the water with confidence. Designed as a direct drop-in replacement for Johnson, Evinrude, OMC, and BRP 3-cylinder outboards (913 cc), this comprehensive kit contains the critical seals needed for a complete and reliable powerhead rebuild. Built to endure extreme marine conditions, our gaskets are manufactured to meet or exceed OEM specifications, ensuring a tight, leak-free fit that restores factory compression and prevents moisture intrusion. Replaces the Following Part Numbers: OEM: 0438904, 438904, 398047, 0398047, 777421 Sierra Marine: 18-4321 GLM: 39390 Mallory: 9-64101 Compatibility & Fitment Guide: (Fits 913 cc 3-Cylinder blocks only) 50 HP: 1995 – 2001 60 HP: 1986 – 2001 65 HP: 1987 – 2001 (Commercial models) 70 HP: 1986 – 2001 Important Installation & Purchase Notes: Count Your Cylinders: Outboard part compatibility can be highly specific. This set is strictly for 3-Cylinder engines. If you have a 2-Cylinder 50 HP or 60 HP model, this kit will not fit. Best Practices: For opti

Free shipping included. 30-day hassle-free returns.