PISTON KIT 77-78 YZ400 87.00, WOSSNER 8264D200 YAMAHA MX, 77-78 IT400
Wossner 87mm forged piston kit designed for high durability and optimised heat transfer. Features an elliptical design for even load distribution during thermal expansion, reducing localised pressure and preventing piston collapse. Made in Germany. Specifications: Bore Size 87mm (86.92mm), Display 398 cm³, Stroke 82.00 mm, Clearance 0.08 mm, Compression Height 40.00 mm, Compression Ratio 2-stroke (Wossner and OEM). Includes Piston Kit: 8264D200, Lock: CW18, Pin: WP042, Ring Set: RSC8700 x2. Part No.: 56-W550_2.00.WO.
- SKU
- 56-W550_2.00.WO
- Brand
- Wossner
- Availability
- Out of Stock
FULL DESCRIPTION
Wossner 87mm Piston Kit for Yamaha YZ400 and IT425
This Wossner piston kit features an 87mm bore size (86.92mm actual) and is designed for Yamaha YZ400 and IT425 models. Manufactured in Germany, this forged piston is engineered for high durability and optimised heat transfer. Its elliptical design supports even load distribution during thermal expansion, reducing localised pressure and preventing piston collapse.
Key Features:
- Forged construction for maximum strength.
- Elliptical design distributes thrust loads evenly under expansion.
- Engineered for efficient combustion chamber heat transfer.
- Made in Germany.
Specifications:
- Bore Size: 87mm (86.92mm actual)
- Stroke: 82.00 mm
- Clearance: 0.08 mm
- Compression Height: 40.00 mm
- Compression Ratio: 2-stroke (Wossner and OEM compatible)
Kit Components:
- Piston
- Lock: CW18
- Pin: WP042
- Ring Set: RSC8700 (x2)
