Description
When your 2-stroke 250cc engine shows signs of wear—loss of compression, sluggish throttle response, or visible carbon buildup—a complete rebuild is the most cost-effective path to restoring full performance. The Wiseco PWR179-100 kit eliminates the guesswork of sourcing individual components by bundling everything you need for a proper top and bottom-end overhaul. Whether you’re preparing for race season or bringing a tired machine back to life, this kit ensures reliability and consistent power delivery without compromises.
Built for serious riders who demand precision engineering, this Wiseco rebuild kit pairs Pro-Lite® piston technology with OEM-quality bearings and seals—the combination that separates a proper rebuild from a temporary fix. You get the exact specifications KTM designed the 250 SX for, meaning no guesswork on fitment or compression ratios.
- Fits: 2006 KTM 250 SX
- Bore: 66.40mm
- MPN: PWR179-100
- Includes piston assembly
- Crankshaft assembly included
- Main bearings + seals
- Complete gasket set
- Cam chain included
- Hour meter + bracket
- Top and bottom-end
- Pro-Lite® piston design
- OEM compression ratio
