WOSSNER Piston Kit with a 4.500 in stroke and 120 CID M8 CVO application. The piston crown is anodized to improve resistance to extreme heat, with testing showing improved thermal diffusivity of up to 10%. Hardcoat anodize treatment helps the piston manage heat and wear, while also improving ring groove resistance to sliding wear compared with untreated surfaces.
The kit includes the piston, piston rings, piston pin, and retaining clips. Valve pocket specifications include a 1.780 in intake diameter, 0.200 in intake depth, and 27.000° intake angle, along with a 1.780 in exhaust diameter, 0.200 in exhaust depth, and 27.000° exhaust angle. Distributor part number: K4083D478-2. Manufacturer part number: K4083D478-2.
Fits 2018, 2020, and 2021 Harley-Davidson FLHXSE CVO Street Glide; 2018, 2020, and 2021 Harley-Davidson FLTRXSE CVO Road Glide; 2022 Harley-Davidson FLTRKSE CVO Road Glide Limited; 2017 and 2021 Harley-Davidson FLHTKSE CVO Limited; and 2022 Harley-Davidson FLHTCUTGSE CVO Tri Glide.
Features:
- Anodized Crown: Improves resistance to extreme heat.
- Thermal Diffusivity: Tested and proven to improve thermal diffusivity by up to 10%.
- Hardcoat Anodize Treatment: Enhances the piston's ability to manage heat and wear.
- Ring Groove Wear Resistance: Improves resistance to sliding wear compared with untreated surfaces.
- Kit Contents: Includes piston, piston rings, piston pin, and retaining clips.
- Application: 4.500 in stroke, 120 CID M8 CVO piston kit.
- Manufacturer Part Number: K4083D478-2.
Fitment:
2017 Harley-Davidson FLHTKSE CVO Limited
2017 Harley-Davidson FLHXSE CVO Street Glide
2018 Harley-Davidson FLHTKSE CVO Limited
2018 Harley-Davidson FLHXSE CVO Street Glide
2018 Harley-Davidson FLTRXSE CVO Road Glide
2019 Harley-Davidson FLHTKSE CVO Limited
2019 Harley-Davidson FLHXSE CVO Street Glide
2019 Harley-Davidson FLTRXSE CVO Road Glide
2020 Harley-Davidson FLHTCUTGSE CVO Tri Glide
2020 Harley-Davidson FLHTKSE CVO Limited
2020 Harley-Davidson FLHXSE CVO Street Glide
2020 Harley-Davidson FLTRXSE CVO Road Glide
2021 Harley-Davidson FLHTCUTGSE CVO Tri Glide
2021 Harley-Davidson FLHTKSE CVO Limited
2021 Harley-Davidson FLHXSE CVO Street Glide
2021 Harley-Davidson FLTRXSE CVO Road Glide
2022 Harley-Davidson FLHTCUTGSE CVO Tri Glide
2022 Harley-Davidson FLHXSE CVO Street Glide
2022 Harley-Davidson FLTRKSE CVO Road Glide Limited
2022 Harley-Davidson FLTRXSE CVO Road Glide
2023 Harley-Davidson FLHXSE CVO Street Glide
2023 Harley-Davidson FLTRKSE CVO Road Glide Limited
2023 Harley-Davidson FLTRXSE CVO Road Glide
2024 Harley-Davidson FLHXSE CVO Street Glide
2024 Harley-Davidson FLTRXSE CVO Road Glide
2025 Harley-Davidson FLHXSE CVO Street Glide
2025 Harley-Davidson FLTRXSE CVO Road Glide