PROPELLER
Piston Kit STD for Yamaha V6 150HP 175HP 200HP 225HP 2-Stroke 6G5-11631-00
Engineered specifically for Yamaha's high-displacement V6 2-stroke outboard engines, this premium standard-bore (STD) piston kit restores original cylinder compression, engine output, and top-end throttle response. Precision-cast to meet strict marine OEM standards, it delivers superior wear resistance and low thermal expansion under extreme high-RPM operation.
Outboard Piston Kit STD for Yamaha V6 150HP 175HP 200HP 225HP 2-Stroke 6G5-11631-00
Engineered specifically for Yamaha's high-displacement V6 2-stroke outboard engines, this premium standard-bore (STD) piston kit restores original cylinder compression, engine output, and top-end throttle response. Precision-cast to meet strict marine OEM standards, it delivers superior wear resistance and low thermal expansion under extreme high-RPM operation.
Key Features & Highlights
- High-Silicon Aluminum Alloy Construction: Cast with superior high-silicon alloy for exceptional thermal stability, preventing piston expansion, cylinder wall scuffing, and power degradation.
- Precision CNC Machining: Manufactured to exact factory tolerances to guarantee optimal piston-to-wall clearances, balanced weight, and smooth power delivery across all 6 cylinders.
- Complete Overhaul Kit: Includes all essential components for a cylinder rebuild: 1x Piston, 1x Set of High-Performance Piston Rings, 1x Wrist Pin, and 2x Circlips.
- Coated Piston Crown & Skirt: Specially treated surface reduces friction, resists carbon buildup, and prolongs internal engine service life in severe marine conditions.
Technical Specifications
Parameter | Specification |
OEM Reference Part Number | 6G5-11631-00 / 6G5-11631-01 / 6G5-11631-02 / 6G5-11631-00-90 |
Bore Size | Standard Bore (STD) / 90.00 mm |
Engine Architecture | Yamaha V6 2.6L 2-Stroke Outboard Motors |
Horsepower Range | 150 HP, 175 HP, 200 HP, 225 HP (V6 Series) |
Condition | 100% Brand New Marine Aftermarket Replacement |
Package Contents | 1x Piston, 1x Ring Set, 1x Gudgeon Wrist Pin, 2x Circlips |
Engine & Model Fitment
Fits Yamaha 2-stroke V6 outboard engine models, including:
- Yamaha V6 150HP (150A / 150ET / L150)
- Yamaha V6 175HP (175A / 175ET)
- Yamaha V6 200HP (200A / 200ET / L200)
- Yamaha V6 225HP (225A / 225ET / Excel series)
Pro Mechanic Tip: When overhauling V6 outboard engines, always measure cylinder bores with a dial bore gauge to verify whether standard (STD) or oversize pistons are required. Replacing pistons in balanced sets is strongly recommended.
