PISTON KIT 88-91 DT200 66.40, WOSSNER 8070D040 YAMAHA DIRT

Wossner Forged Piston Kit 66.40mm Bore. This Wossner forged piston kit is designed for 2-stroke engines, offering a 66.40 mm bore and piston diameter of 66.34 mm (+0.40 mm oversize). The piston features forged construction and an elliptical profile to ensure optimal heat transfer and structural stability during high thermal expansion. Manufactured in Germany for consistent quality and performance. Features include forged piston for superior durability and strength, optimised heat transfer from combustion chamber to cylinder walls, elliptical design promotes even pressure distribution and reduces thrust stress, and made in Germany for precision engineering. Specifications include Bore Size: 66.40 mm, Piston Diameter: 66.34 mm, Engine Displacement: 195 cm³, Stroke: 57.00 mm, Clearance: 0.06 mm, Compression Height: 29.90 mm, Compression Ratio: 2-stroke (Wossner and OEM). Cross-reference Wossner part numbers: Piston Kit: 8070D040, Lock: CW16, Pin: WP027, Ring Set: RSB6640 x 2. Weight: 296g.