The WOSSNER Piston Kit, 88.97 mm, is designed for specified Beta and KTM applications. Manufacturer part number 8581DB, this kit includes a piston, rings, wrist pin and pin locks for the listed fitments.
The piston features enhanced piston pin oiling slots, radial boss machining and annular grooves to support wrist pin lubrication. Its lightweight design uses tight piston wall clearance for quieter engine operation. A coated skirt helps reduce friction and support break-in performance, while ring land treatment is intended to improve ring seal and oil control. A double bridged forging design is used where noted.
Vehicle fitment includes the 2005 Beta 450 RR; 2003, 2004, 2005 and 2006 KTM 450 EXC Racing 4-Stroke; 2009 KTM 450 XC; 2009 Beta 450 RR; 2005 KTM 450 MXC-G; and 2004 KTM 450 EXC-G.
Features:
- Size: 88.97 mm piston kit
- Kit contents: Includes piston, rings, wrist pin and pin locks
- Lubrication design: Enhanced piston pin oiling slots, radial boss machining and annular grooves
- Piston construction: Lightweight piston with tight piston wall clearance for quieter engine operation
- Skirt coating: Coated skirt helps reduce friction and support break-in performance
- Ring land treatment: Designed to improve ring seal and oil control
- Forging design: Double bridged forging design where noted
- Fitment: Fits specified Beta 450 RR, KTM 450 EXC Racing 4-Stroke, KTM 450 XC, KTM 450 MXC-G and KTM 450 EXC-G applications
Fitment:
2003 KTM 450 EXC Racing 4-Stroke
2004 KTM 450 EXC Racing 4-Stroke
2004 KTM 450 EXC-G
2004 KTM 450 MXC-G
2005 Beta 450 RR
2005 KTM 450 EXC Racing 4-Stroke
2005 KTM 450 EXC-G
2005 KTM 450 MXC-G
2006 Beta 450 RR
2006 KTM 450 EXC Racing 4-Stroke
2006 KTM 450 EXC-G
2007 Beta 450 RR
2007 KTM 450 EXC Racing 4-Stroke
2007 KTM 450 XC-W
2008 Beta 450 RR
2008 KTM 450 XC
2009 Beta 450 RR
2009 KTM 450 XC