PISTON KIT 05-18 KTM 250 66.40, WOSSNER PISTON KIT 8169DB
Available from Supplier — dispatched directly
This item is dispatched directly to you by our supplier. Supplier stock is separate from stock held at BTP.
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PISTON KIT 05-18 KTM 250 66.40, WOSSNER PISTON KIT 8169DB is available to order. Please contact us to confirm availability and lead time.
Pickup currently unavailable at Braydon Trailers HQ
BTP – Your Trusted Trailer & ATV Specialists in the South West
Authorised dealer for top brands, including CFMOTO, Brian James, Debon, Cheval Liberté, Tiki, Woodford, Erde, and more.
Description
Description
Wossner forged piston kit designed for KTM SX250 (2005-2018), EXC250 (2006-2018), Freeride 250R (2014-2015), Husqvarna TC250 (2014-2015), and Betamotor RR250 (2013-2015) models. Engineered for superior strength and optimal heat transfer, these pistons feature an elliptical design to ensure uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse. Includes a hard Teflon skirt coating for an optimal fit and improved conformability to the cylinder bore.
Features
- Forged piston for increased strength and durability
- Optimized heat transfer for efficient combustion chamber performance
- Elliptical design for even thrust load distribution and reduced piston collapse
- Hard Teflon skirt coating for improved fit and wear resistance
Specifications
- Bore Size: 66.41mm
- Actual Bore Diameter: 66.35mm
- Displacement: 249 cm³
- Stroke: 72.00mm
- Clearance: 0.06mm
- Wossner Compression Ratio: 2-stroke
- OEM Compression Ratio: 2-stroke
- Compression Height: 38.00mm
- Lock Part Number: CW18
- Pin Part Number: WP033
- Ring Set Part Number: RSB6640 x 2
- Rod Part Number: P2023
Cross-Reference OEM Part Numbers
- 54830007300 II
Vehicle Fitments
- KTM SX250 (2005-2018)
- KTM EXC250 (2006-2018)
- KTM Freeride 250R (2014-2015)
- Husqvarna TC250 (2014-2015)
- Betamotor RR250 (2013-2015)



