The PROX 01.6358.A Forged Piston Kit is designed for select KTM and Husqvarna 300 two-stroke motorcycles equipped with Nikasil-plated cylinders. Built as a direct interchange for the corresponding OEM piston assembly, this kit provides a practical replacement solution for engine rebuilding and routine top-end service. The piston kit includes the forged piston, piston rings, wrist pin, and circlips required for installation.
Fitment includes the 2018 KTM 300 XC, 2018 KTM 300 XC-W, 2018 Husqvarna TX 300, and 2018 Husqvarna TE 300. It also fits the 2019 KTM 300 XC-W TPi, 2019 KTM 300 XC, 2019 Husqvarna TE 300i, 2019 Husqvarna TX 300, 2020 Husqvarna TX 300i, and 2020 KTM 300 XC-W TPi. Verify the existing cylinder, piston specification, and manufacturer application before installation to ensure proper fit and clearance.
Manufactured by PROX, this forged piston kit is engineered for dependable service in high-performance two-stroke applications while offering an alternative to OEM replacement pricing. The 71.94 mm piston size is intended for compatible Nikasil cylinder applications. Vendor part number 19-6358A and manufacturer part number 01.6358.A identify this specific PROX piston kit.
Features:
- Value: Provides an economical alternative to OEM replacement parts.
- Interchange: Directly interchanges with compatible OEM piston assemblies.
- Complete Kit: Includes forged piston, piston rings, wrist pin, and circlips.
- Application: Designed for select KTM and Husqvarna 300 two-stroke models with Nikasil-plated cylinders.
- Fitment: Fits specified 2018-2020 KTM and Husqvarna 300 XC, XC-W, TX, TE, TPi, and 300i models.
Fitment:
2018 Husqvarna TE 300
2018 Husqvarna TE 300i
2018 Husqvarna TX 300
2018 KTM 300 EXC TPi
2018 KTM 300 XC
2018 KTM 300 XC-W
2019 Husqvarna TE 300i
2019 Husqvarna TX 300
2019 KTM 300 EXC TPi
2019 KTM 300 XC
2019 KTM 300 XC-W TPi
2020 Husqvarna TE 300i
2020 Husqvarna TX 300i
2020 KTM 300 EXC TPi
2020 KTM 300 XC TPi
2020 KTM 300 XC-W TPi
2021 Gas-Gas EC 300
2021 Gas-Gas EX 300
2021 Husqvarna TE 300i
2021 Husqvarna TX 300i
2021 KTM 300 EXC TPi
2021 KTM 300 XC TPi
2021 KTM 300 XC-W TPi
2022 Gas-Gas EC 300
2022 Gas-Gas EX 300
2022 Husqvarna TE 300i
2022 Husqvarna TX 300i
2022 KTM 300 EXC
2022 KTM 300 EXC TPi
2022 KTM 300 XC TPi
2022 KTM 300 XC-W TPi
2023 Gas-Gas EC 300
2023 Gas-Gas EX 300
2023 Husqvarna TE 300
2023 Husqvarna TE 300i
2023 Husqvarna TX 300
2023 Husqvarna TX 300i
2023 KTM 300 EXC
2023 KTM 300 SX
2023 KTM 300 XC
2023 KTM 300 XC-W
2024 Gas-Gas EC 300
2024 Gas-Gas EX 300
2024 Husqvarna TE 300
2024 Husqvarna TE 300i
2024 Husqvarna TX 300
2024 Husqvarna TX 300i
2024 KTM 300 EXC
2024 KTM 300 SX
2024 KTM 300 XC
2024 KTM 300 XC-W
2025 Gas-Gas EC 300
2025 Gas-Gas EX 300
2025 Husqvarna TE 300
2025 Husqvarna TE 300i
2025 Husqvarna TX 300
2025 Husqvarna TX 300i
2025 KTM 300 EXC
2025 KTM 300 SX
2025 KTM 300 XC
2025 KTM 300 XC-W