WOSSNER 67.5mm FORGED PISTON KIT B, KTM 250 2T 1990-1994

Wossner Forged Piston Kit 67.51mm Bore – KTM GS250 / SX250 (1990–1994)
This Wossner forged piston kit is made for KTM GS250 and SX250 models from 1990 to 1994. With a bore size of 67.51 mm and a piston diameter of 67.45 mm (+0.01 mm oversize), it is suited for 2-stroke engine applications requiring high strength and optimal thermal efficiency. The forged construction and elliptical design ensure even thrust load distribution, minimising wear and stress under expansion. Manufactured in Germany to precise engineering standards.

Features

• Forged piston design for superior durability and performance

• Enhanced heat transfer for combustion chamber cooling

• Elliptical geometry provides even load distribution and reduced localised pressure

• Manufactured in Germany

Specifications

• Bore Size: 67.51 mm

• Piston Diameter: 67.45 mm

• Engine Displacement: 249 cm³

• Stroke: 69.50 mm

• Clearance: 0.06 mm

• Compression Height: 29.70 mm

• Compression Ratio: 2-stroke (Wossner and OEM)

Cross-Reference Wossner Part Numbers

• Piston Kit: 8005DB

• Lock: CW18

• Pin: WP033

• Ring Set: RSB6750 x 2

Vehicle Fitments

• KTM GS250 (1990–1994)

• KTM SX250 (1990–1994)

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.