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The All Balls 18-9037 Brake Caliper Piston Kit is designed to rebuild one brake caliper on select Polaris off-road vehicles. Precision machined from high-grade 304 stainless steel, this replacement piston kit provides a durable alternative to aging factory components and helps restore reliable brake caliper operation. The kit includes the piston or pistons required to rebuild one caliper.
Stainless steel construction reduces thermal conductivity by up to 93% compared with aluminum, helping limit heat transfer within the braking system. The All Balls design also replaces plastic composite pistons that may become brittle with age, as well as OEM chrome-plated steel and aluminum pistons that can be susceptible to corrosion. On applicable KTM-style calipers, the kit eliminates failure-prone ceramic inserts.
Manufacturer part number: All Balls 18-9037. Vendor part number: 18-9037. Fitment includes 2015-2016 Polaris RZR 900, 2016 Polaris RZR 1000 S EPS, 2012-2016 Polaris RZR 570, and 2008-2009 Polaris Outlaw 450 MXR. Verify the vehicle model and brake caliper application before installation to ensure proper fitment.
Features:
- Precision machined from high-grade 304 stainless steel
- Reduces thermal conductivity by up to 93% compared with aluminum
- Replaces plastic composite pistons that may become brittle with age
- Provides an alternative to corrosion-prone chrome-plated steel and aluminum OEM pistons
- Eliminates failure-prone ceramic inserts found on some KTM-style calipers
- Includes the piston or pistons needed to rebuild one brake caliper
- Fits select 2012-2016 Polaris RZR 570, 2015-2016 Polaris RZR 900, 2016 Polaris RZR 1000 S EPS, and 2008-2009 Polaris Outlaw 450 MXR models
Fitment:
2006 Polaris Sportsman X2 500
2007 Polaris Outlaw 525 Irs
2008 Polaris Outlaw 450 Mxr
2008 Polaris Outlaw 525 Irs
2008 Polaris Outlaw 525 S
2008 Polaris RZR 800
2009 Polaris Outlaw 450 Mxr
2009 Polaris Outlaw 525 Irs
2009 Polaris Outlaw 525 S
2009 Polaris RZR 800
2009 Polaris RZR 800 S
2010 Polaris Outlaw 450 Mxr
2010 Polaris Outlaw 525 Irs
2010 Polaris Outlaw 525 S
2010 Polaris RZR 800
2010 Polaris RZR 800 S
2011 Polaris Outlaw 525 Irs
2011 Polaris RZR 800
2011 Polaris RZR 800 S
2012 Polaris RZR 570
2012 Polaris RZR 800
2012 Polaris RZR 800 S
2013 Polaris RZR 570
2013 Polaris RZR 800
2013 Polaris RZR 800 S
2014 Polaris RZR 570
2014 Polaris RZR 800
2014 Polaris RZR 800 S
2015 Polaris RZR 570
2015 Polaris RZR 900
2015 Polaris RZR 900 50/55 Inch
2015 Polaris RZR 900 S
2016 Polaris RZR 1000 S EPS
2016 Polaris RZR 570
2016 Polaris RZR 900
2016 Polaris RZR 900 50/55 Inch
2016 Polaris RZR 900 S
2017 Polaris General 1000 EPS
2017 Polaris RZR 1000 S EPS
2017 Polaris RZR 570
2017 Polaris RZR 570 S EPS
2017 Polaris RZR 900
2017 Polaris RZR 900 50/55 Inch
2017 Polaris RZR 900 S
2018 Polaris General 1000 Deluxe EPS
2018 Polaris General 1000 EPS
2018 Polaris General 1000 EPS Hunter Edition
2018 Polaris General 1000 Premium EPS
2018 Polaris General 1000 Ride Command Edition EPS
2018 Polaris RZR 1000 S EPS
2018 Polaris RZR 570
2018 Polaris RZR 570 EPS
2018 Polaris RZR 900
2018 Polaris RZR 900 50 Inch
2018 Polaris RZR 900 50 Inch EPS
2018 Polaris RZR 900 EPS
2018 Polaris RZR 900 S
2019 Polaris General 1000 Deluxe EPS
2019 Polaris General 1000 EPS
2019 Polaris General 1000 EPS Hunter Edition
2019 Polaris General 1000 LE EPS
2019 Polaris General 1000 Premium EPS
2019 Polaris General 1000 Ride Command Edition EPS
2019 Polaris RZR 1000 S EPS
2019 Polaris RZR 570
2019 Polaris RZR 570 EPS
2019 Polaris RZR 900 50 Inch
2019 Polaris RZR 900 50 Inch EPS
2019 Polaris RZR 900 S
2020 Polaris General 1000 Deluxe EPS
2020 Polaris General 1000 Deluxe Ride Command Edition
2020 Polaris General 1000 Premium EPS
2020 Polaris General 1000 Sport
2020 Polaris RZR 1000 S EPS
2020 Polaris RZR 570
2020 Polaris RZR 900 50 Inch
2020 Polaris RZR 900 50 Inch EPS
2020 Polaris RZR 900 S
2020 Polaris RZR 900 Trail S EPS
2020 Polaris Scrambler XP 1000 S
2020 Polaris Sportsman XP 1000 S
2021 Polaris General 1000 Deluxe EPS
2021 Polaris General 1000 Premium EPS
2021 Polaris General 1000 Sport
2021 Polaris RZR 1000 60 Inch
2021 Polaris RZR 1000 Trail S Premium
2021 Polaris RZR 1000 Trail S Ultimate
2021 Polaris RZR 570 Trail
2021 Polaris RZR 570 Trail Premium
2021 Polaris RZR 900 Trail Premium EPS
2021 Polaris RZR 900 Trail S Sport
2021 Polaris RZR 900 Trail Sport
2021 Polaris RZR 900 Trail Ultimate EPS
2021 Polaris Scrambler XP 1000 S
2021 Polaris Sportsman XP 1000 S
2022 Polaris General 1000 Deluxe EPS
2022 Polaris General 1000 Premium EPS
2022 Polaris General 1000 Sport
2022 Polaris RZR 1000 Trail S Premium
2022 Polaris RZR 1000 Trail S Ultimate
2022 Polaris RZR 570 Trail
2022 Polaris RZR 900 Trail Premium EPS
2022 Polaris RZR 900 Trail S Sport
2022 Polaris RZR 900 Trail Sport
2022 Polaris RZR 900 Trail Ultimate EPS
2022 Polaris Scrambler XP 1000 S
2022 Polaris Sportsman XP 1000 S
2023 Polaris General 1000 Premium EPS
2023 Polaris General 1000 Sport
2023 Polaris RZR 1000 Trail S Premium
2023 Polaris RZR 900 Trail Premium EPS
2023 Polaris RZR 900 Trail S Sport
2023 Polaris Sportsman XP 1000 S
2024 Polaris General 1000 Premium EPS
2024 Polaris General 1000 Sport
2024 Polaris RZR 1000 Trail S Ultimate
2024 Polaris RZR 900 Trail S Sport
2024 Polaris RZR 900 Trail Sport
2024 Polaris RZR 900 Trail Ultimate EPS
2024 Polaris Scrambler XP 1000 S
2024 Polaris Sportsman XP 1000 S
2025 Polaris General 1000 Premium EPS
2025 Polaris General 1000 Sport
2025 Polaris RZR 1000 Trail S Ultimate
2025 Polaris RZR 900 Trail S Sport
2025 Polaris RZR 900 Trail Sport
2025 Polaris RZR 900 Trail Ultimate EPS
2025 Polaris Scrambler XP 1000 S
2026 Polaris General 1000 Premium EPS
2026 Polaris General 1000 Sport
2026 Polaris RZR 1000 Trail S Ultimate
2026 Polaris RZR 900 Trail Sport
2026 Polaris RZR 900 Trail Ultimate EPS
2026 Polaris Scrambler XP 1000 S
2026 Polaris Sportsman XP 1000 S