WSM 200-295 Piston Ring Set Yamaha 3.3L HPDI V6 Outboard Standard Bore

The WSM 200-295 is a standard bore piston ring set designed for Yamaha 3.3-liter HPDI (High Pressure Direct Injection) V6 two-stroke outboard engines. This ring set is a direct aftermarket replacement for OEM part numbers 6D0-11603-00-00 and 6D0-11603-01-00, covering the full range of 200–300 HP HPDI V6 outboard applications.

WSM rings are manufactured to meet or exceed OEM specifications, delivering reliable sealing performance and durability during powerhead rebuilds or top-end service intervals. The standard bore size accommodates the factory 3.660" cylinder bore without any cylinder machining required—a light hone is sufficient for proper ring seating.

Key Features:

• Standard bore size: 3.660"
• Designed for Yamaha 76-degree V6 2-stroke HPDI powerheads
• Direct replacement for OEM ring set — no modification required
• Compatible with 200 HP, 225 HP, 250 HP, and 300 HP HPDI V6 models
• Replaces OEM part numbers: 6D0-11603-00-00 and 6D0-11603-01-00
• WSM quality construction for long-lasting engine performance

This ring set is sold as a single-cylinder kit. Verify your engine's cylinder bore size before ordering. For complete powerhead rebuilds, refer to WSM's full powerhead rebuild kit lineup for the 3.3L HPDI platform.