Description
The Sierra 18-9079 Wave Washer Kit is designed for select Yamaha and Mercury outboard applications, providing essential components for proper assembly and reliable mechanical performance. It is compatible with Yamaha 2-stroke 115–300hp models from 1993 and up, Yamaha 4-stroke 115–225hp models from 2002 and up, and Mercury 4-stroke 225 EFI engines with serial number 0T653945 and up. This kit includes all necessary components for service, including a spacer, collar, wave washer, and two stainless steel washers. Engineered for dependable fitment and durability, it helps maintain proper alignment and function within the assembly for long-term reliability in marine environments.
Features
- Designed for Yamaha 2-stroke 115–300hp and 4-stroke 115–225hp outboards
- Compatible with Mercury 4-stroke 225 EFI engines (S/N 0T653945 & up)
- Includes spacer, collar, wave washer, and two stainless steel washers
- Supports proper assembly alignment and reliable mechanical function
- Engineered for durable performance in marine operating conditions
- Fits: Yamaha 2-Stroke 115-300hp 1993 & Up
- Fits: Yamaha 4-Stroke 115-225hp 2002-Up
- Fits: Mercury 4-Stroke 225 EFI S/N 0T653945 & Up
- Premium quality for longer life
- Meets or exceeds manufacturer specs
- Backed by Sierra’s limited lifetime warranty






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