The All Balls Caliper Piston Kit, manufacturer part number 18-9049 and vendor part number 18-9049, is designed to rebuild one compatible brake caliper on select Polaris RZR models. Precision machined from high-grade 304 stainless steel, these replacement pistons provide a durable alternative to plastic composite, chrome-plated steel, aluminum, and ceramic-insert designs that may deteriorate, corrode, or become damaged over time.
Feature: Stainless steel construction reduces thermal conductivity by up to 93% compared with aluminum, helping limit heat transfer through the caliper during demanding riding conditions. The kit includes the piston or pistons required to rebuild one caliper, supporting a reliable brake service with components engineered for consistent fit and function. Always compare the original component and service requirements before installation.
Fitment includes the 2020 Polaris RZR Pro XP, 2020 Polaris RZR 1000 RS1, 2021 Polaris RZR 1000 RS1, 2021 Polaris RZR Pro XP Sport, 2021 Polaris RZR Pro XP Premium, 2021 Polaris RZR Pro XP Ultimate, 2020 Polaris RZR Pro XP Ultimate, 2022 Polaris RZR 1000 RS1, 2022 Polaris RZR Pro XP Premium, and 2022 Polaris RZR Pro XP Sport. This All Balls replacement caliper piston kit is intended for compatible applications listed above and is supplied as a rebuild component rather than a complete brake caliper assembly.
Features:
- Precision machined from high-grade 304 stainless steel
- Reduces thermal conductivity by up to 93% compared with aluminum
- Provides a durable alternative to plastic composite pistons that can become brittle with age
- Helps replace OEM chrome-plated steel and aluminum pistons prone to corrosion
- Eliminates failure-prone ceramic inserts used on some KTM caliper applications
- Includes the piston or pistons required to rebuild one compatible caliper
- Fits select 2020-2022 Polaris RZR Pro XP and RZR 1000 RS1 models
Fitment:
2020 Polaris RZR 1000 RS1
2020 Polaris RZR Pro XP
2020 Polaris RZR Pro XP Ultimate
2021 Polaris RZR 1000 RS1
2021 Polaris RZR Pro XP Premium
2021 Polaris RZR Pro XP Sport
2021 Polaris RZR Pro XP Ultimate
2022 Polaris RZR 1000 RS1
2022 Polaris RZR Pro XP Premium
2022 Polaris RZR Pro XP Sport
2022 Polaris RZR Pro XP Ultimate
2023 Polaris RZR Pro XP Premium
2023 Polaris RZR Pro XP Sport
2023 Polaris RZR Pro XP Ultimate
2024 Polaris RZR Pro XP Premium
2024 Polaris RZR Pro XP Sport
2024 Polaris RZR Pro XP Ultimate