PISTON KIT 1983 &85 YZ125 58mm, WOSSNER 8119D200 YAMAHA
This Wossner forged piston kit has a 58mm bore size (57.94mm) and is designed for Yamaha YZ125 models. Manufactured in Germany, this piston offers improved strength, durability, and efficient heat transfer. Its elliptical design promotes even pressure distribution under thermal expansion, reducing localized stress and helping prevent piston collapse. Specifications include a display volume of 83 cm³, stroke of 84.00 mm, clearance of 0.06 mm, compression height of 30.80 mm, and a 2-stroke compression ratio. Cross-reference OEM part numbers include Piston: 8119D200, Lock: CW16, Pin: WP036, and Ring Set: RSB5800.
- SKU
- 56-W503+200.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Forged Piston Kit 58mm for Yamaha YZ125
This Wossner forged piston kit features a 58mm bore (57.94mm) and is designed for Yamaha YZ125 models. Made in Germany, this piston offers enhanced durability and efficient heat transfer. Its elliptical design promotes even pressure distribution under thermal expansion, reducing localized stress and helping prevent piston collapse.
Key Features:
- Forged piston construction for superior strength and longevity.
- Optimized design for efficient heat transfer to cylinder walls.
- Elliptical shape ensures uniform bearing surface during thermal expansion.
- Precision manufactured in Germany.
Specifications:
- Bore Size: 58mm (57.94mm)
- Display Volume: 83 cm³
- Stroke: 84.00 mm
- Clearance: 0.06 mm
- Compression Height: 30.80 mm
- Compression Ratio: 2-stroke (Wossner and OEM)
Included Components:
- Piston: 8119D200
- Lock: CW16
- Pin: WP036
- Ring Set: RSB5800


