Manufacturer & Distributor Part Numbers:  
Wossner Punctuated Part#:  K4081DA-2
Wossner NON-Punctuate Part #:  K4081DA2
Drag Specialties Punctuated Part#:  0910-6681
Drag Specialties NON-Punctuate Part#:  9106681

Piston Kit - 4.375" Stroke - 107 CID - M8

Features

• Crown is anodized to improve resistance to extreme heat
• Tested and proven to improve thermal diffusivity by up to 10%
• Hardcoat anodize treatment enhances the piston's abilities to manage heat and wear
• Ring groove wear is improved with anodize treatment ability to handle sliding wear as compared to non-treated surfaces
• Kit includes piston, piston rings, piston pin and retaining clips
• Valve Pocket Specifications:
• Intake Diameter: 1.780"
• Intake Depth: 0.200"
• Intake Angle: 27.000°
• Exhaust Diameter: 1.780"
• Exhaust Depth: 0.200"
• Exhaust Angle: 27.000°

Specs

Parts Notes:

Fitment Disclosure:
This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.