PISTON KIT 09-18 SX50 39.5mm B, WOSSNER 8262DB KTM MX

This Wossner forged piston kit with a 39.51mm bore (+0.01mm oversize) is designed for KTM SX50 models from 2009 to 2018. Engineered for enhanced strength and consistent performance in small-displacement two-stroke engines, this piston is manufactured in Germany and features advanced geometry for efficient heat dissipation and balanced thrust load distribution.

Features

• Forged for maximum durability and strength

• Engineered to optimise heat transfer to the cylinder walls

• Elliptical design provides a uniform bearing surface, reducing localised stress

• Made in Germany

Specifications

• Bore: 39.51mm

• Actual Bore: 39.46mm

• Engine Displacement: 50 cm³

• Stroke: 40.00mm

• Clearance: 0.04mm

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

• Compression Height: 21.60mm

• Lock Part Number: CW12

• Pin Part Number: WP101

• Ring Set Part Number: RSB2950

• Rod Part Number: P2053

Cross-Reference OEM Part Numbers

• 45230007000 I

Vehicle Fitments

• 2009 KTM SX50

• 2010 KTM SX50

• 2011 KTM SX50

• 2012 KTM SX50

• 2013 KTM SX50

• 2014 KTM SX50

• 2015 KTM SX50

• 2016 KTM SX50

• 2017 KTM SX50

• 2018 KTM SX50