Restore reliable brake caliper performance with the All Balls Brake Caliper Piston Kit, manufacturer part number 18-9003 and vendor part number 21-89003. Precision machined from high-grade 304 stainless steel, this replacement piston kit is designed to rebuild one brake caliper on select KTM and Husqvarna motorcycles. Its stainless steel construction helps reduce heat transfer compared with aluminum pistons, supporting consistent braking performance under demanding riding conditions.
The All Balls 18-9003 kit replaces vulnerable plastic composite pistons that can become brittle with age, as well as OEM chrome-plated steel and aluminum pistons that may be susceptible to corrosion. It also eliminates failure-prone ceramic inserts used in certain KTM applications. Each kit includes the piston or pistons required to rebuild one caliper, providing a practical solution for brake system maintenance and restoration.
Fitment includes the 2017 KTM 150 XC-W, 250 XC-W, 300 XC-W, 350 EXC-F, and 500 EXC-F, along with the 2017 Husqvarna FX 350, TE 150, FE 350, FE 450, and FE 501. Verify the motorcycle model and caliper application before installation. The kit is intended for replacement and rebuild applications where the original caliper piston is worn, corroded, damaged, or otherwise unsuitable for continued service.
Features:
- Precision machined from high-grade 304 stainless steel
- Stainless steel construction reduces thermal conductivity by up to 93% compared with aluminum
- Replaces plastic composite pistons that can become damaged or brittle with age
- Provides an alternative to OEM chrome-plated steel and aluminum pistons prone to corrosion
- Eliminates failure-prone ceramic inserts found on some KTM models
- Each kit contains the piston or pistons needed to rebuild one brake caliper
- Fits select 2017 KTM and Husqvarna motorcycle models
Fitment:
2017 Husqvarna FE 350
2017 Husqvarna FE 450
2017 Husqvarna FE 501
2017 Husqvarna FX 350
2017 Husqvarna TE 150
2017 KTM 125 XC-W
2017 KTM 150 XC-W
2017 KTM 250 EXC
2017 KTM 250 EXC-F
2017 KTM 250 XC-W
2017 KTM 300 EXC
2017 KTM 300 XC-W
2017 KTM 300 XC-W Six Days
2017 KTM 350 EXC-F
2017 KTM 450 EXC-F
2017 KTM 450 EXC-F Six Days
2017 KTM 500 EXC-F
2018 KTM 125 XC-W
2018 KTM 150 XC-W
2018 KTM 250 EXC
2018 KTM 250 EXC TPi
2018 KTM 250 EXC-F
2018 KTM 250 XC-W
2018 KTM 250 XC-W TPi
2018 KTM 300 EXC TPi
2018 KTM 300 EXC TPi Six Days
2018 KTM 300 XC-W
2018 KTM 300 XC-W Six Days
2018 KTM 350 EXC-F
2018 KTM 450 EXC-F
2018 KTM 450 EXC-F Six Days
2018 KTM 500 EXC-F
2019 KTM 125 XC-W
2019 KTM 150 XC-W
2019 KTM 250 EXC
2019 KTM 250 EXC TPi
2019 KTM 250 EXC TPI Six Days
2019 KTM 250 EXC-F
2019 KTM 250 XC-W TPi
2019 KTM 300 EXC TPi
2019 KTM 300 EXC TPi Six Days
2019 KTM 300 XC-W TPi
2019 KTM 300 XC-W TPI Six Days
2019 KTM 350 EXC-F
2019 KTM 450 EXC-F
2019 KTM 450 EXC-F Six Days
2019 KTM 500 EXC-F
2020 KTM 150 EXC TPi
2020 KTM 150 XC-W TPi
2020 KTM 250 EXC
2020 KTM 250 EXC TPi
2020 KTM 250 EXC-F
2020 KTM 250 XC-W TPi
2020 KTM 300 EXC TPi
2020 KTM 300 EXC TPi Six Days
2020 KTM 300 XC-W TPi
2020 KTM 300 XC-W TPI ERZBERGRODEO
2020 KTM 300 XC-W TPI Six Days
2020 KTM 350 EXC-F
2020 KTM 350 EXC-F Six Days
2020 KTM 350 XCF-W
2020 KTM 450 EXC-F
2020 KTM 500 EXC-F
2020 KTM 500 EXC-F Six Days
2020 KTM 500 XCF-W
2021 Husqvarna TE 300i Rockstar Edition
2021 KTM 150 EXC TPi
2021 KTM 150 XC-W TPi
2021 KTM 250 EXC
2021 KTM 250 EXC TPi
2021 KTM 250 EXC TPI Six Days
2021 KTM 250 EXC-F
2021 KTM 250 XC-W TPi
2021 KTM 300 EXC TPi
2021 KTM 300 EXC TPi Six Days
2021 KTM 300 XC-W TPi
2021 KTM 300 XC-W TPI ERZBERGRODEO
2021 KTM 350 EXC-F
2021 KTM 350 EXC-F Six Days
2021 KTM 350 XCF-W
2021 KTM 450 EXC-F
2021 KTM 500 EXC-F
2021 KTM 500 EXC-F Six Days
2021 KTM 500 XCF-W
2022 Husqvarna TE 300i Rockstar Edition
2022 KTM 150 EXC TPi
2022 KTM 150 XC-W TPi
2022 KTM 250 EXC
2022 KTM 250 EXC TPi
2022 KTM 250 EXC-F
2022 KTM 250 XC-W TPi
2022 KTM 300 EXC
2022 KTM 300 EXC TPi
2022 KTM 300 EXC TPi Six Days
2022 KTM 300 XC-W TPi
2022 KTM 300 XC-W TPI ERZBERGRODEO
2022 KTM 350 EXC-F
2022 KTM 350 EXC-F Factory Edition
2022 KTM 350 EXC-F Six Days
2022 KTM 350 XCF-W
2022 KTM 450 EXC-F
2022 KTM 500 EXC-F
2022 KTM 500 EXC-F Six Days
2022 KTM 500 XCF-W
2023 KTM 150 EXC
2023 KTM 150 XC-W
2023 KTM 250 EXC
2023 KTM 250 EXC TPi
2023 KTM 250 EXC-F
2023 KTM 250 XC-W
2023 KTM 300 EXC
2023 KTM 300 XC-W
2023 KTM 300 XC-W Erzbergrodeo
2023 KTM 350 EXC-F
2023 KTM 350 EXC-F Six Days
2023 KTM 450 EXC-F
2023 KTM 450 XCF-W
2023 KTM 500 EXC-F
2023 KTM 500 EXC-F Six Days
2024 KTM 150 EXC
2024 KTM 150 XC-W
2024 KTM 150 XC-W TPi
2024 KTM 250 XC-W
2024 KTM 350 EXC-F
2024 KTM 350 XW-F
2024 KTM 500 EXC-F
2024 KTM 500 EXC-F Six Days
2024 KTM 500 XW-F
2025 KTM 150 EXC
2025 KTM 150 SX
2025 KTM 150 XC-W
2025 KTM 150 XC-W TPi
2025 KTM 250 XC-W
2025 KTM 350 EXC-F
2025 KTM 350 EXC-F Six Days
2025 KTM 500 EXC-F
2025 KTM 500 EXC-F Six Days
2025 KTM EXC-F 350 Champion Edition
2025 KTM EXC-F 500 Champion Edition
2026 KTM 150 SX
2026 KTM 150 XC-W
2026 KTM 250 XC-W
2026 KTM 350 EXC-F
2026 KTM 350 EXC-F Six Days
2026 KTM 500 EXC-F
2026 KTM 500 EXC-F Six Days