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Pistons & Top End

ProX Top End Piston Kit 0910-6985

$549.95
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Complete top end piston kit.

  • Engineered with high-precision tooling to meet or exceed original factory tolerances
  • Features a full Molybdenum Disulfide (MoS2) skirt coating to ensure smooth engine break-in and prevent piston scuffing
  • Hard-anodized piston crown/dome protects the structure against excessive combustion heat and high detonation
  • Hard-anodized top ring grooves virtually eliminate ring micro-welding in extreme conditions
  • Outfitted with premium Japanese Riken rings for optimal heat transfer and precise oil ring sealing across cast iron, Nikasil, or composite bores
  • Gaskets includes complete premium top-end gasket kit mirroring original equipment layouts for an airtight seal
  • Piston kit includes the pistons, premium rings, heavy-duty wrist pins, circlips, and the small-end wrist pin needle bearing
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  • SKU:

    61745

  • Weight:

    4.2 lb

Vehicle Fitment
2023 Polaris 850 INDY VR1 129
2022 Polaris 850 INDY VR1 129
2021 Polaris 850 INDY VR1 129
2025 Polaris 850 INDY VR1 137
2024 Polaris 850 INDY VR1 137
2023 Polaris 850 INDY VR1 137
2022 Polaris 850 INDY VR1 137
2021 Polaris 850 INDY VR1 137
2025 Polaris 850 INDY VR1 137 Dynamix
2024 Polaris 850 INDY XC 129
2023 Polaris 850 INDY XC 129
2022 Polaris 850 INDY XC 129
2021 Polaris 850 INDY XC 129
2021 Polaris 850 INDY XC Launch Edition 129
2021 Polaris 850 INDY XC Launch Edition 137
2025 Polaris 850 INDY XCR 136
2024 Polaris 850 INDY XCR 136
2023 Polaris 850 INDY XCR 136
2022 Polaris 850 INDY XCR 136
2019 Polaris 850 PRO-RMK 155
2019 Polaris 850 PRO-RMK 163 3in.
2019 Polaris 850 PRO-RMK 174
2022 Polaris 850 PRO-RMK Matryx Slash 155 2.75in.
2022 Polaris 850 PRO-RMK Matryx Slash 155 3in.
2022 Polaris 850 PRO-RMK Matryx Slash 163 3in.
2022 Polaris 850 PRO-RMK Matryx Slash 165 2.75in.
2022 Polaris 850 RMK KHAOS Matryx Slash 163 3in.
2022 Polaris 850 RMK KHAOS Matryx Slash 165 2.75in.
2019 Polaris 850 Rush PRO-S
2020 Polaris 850 SKS 146
2019 Polaris 850 SKS 146
2020 Polaris 850 SKS 155
2019 Polaris 850 SKS 155
2021 Polaris 850 SwitchBack Assault 144
2020 Polaris 850 SwitchBack Assault 144
2019 Polaris 850 SwitchBack Assault 144
2025 Polaris 850 SwitchBack Assault 146
2024 Polaris 850 SwitchBack Assault 146
2023 Polaris 850 SwitchBack Assault 146
2022 Polaris 850 SwitchBack Assault 146
2021 Polaris 850 SwitchBack Assault 146
2019 Polaris 850 SwitchBack PRO-S
2019 Polaris 850 SwitchBack XCR
2023 Polaris Indy 850 Adventure 1.25" w/137" Track
2022 Polaris Indy 850 Adventure 1.25" w/137" Track
2020 Polaris Indy 850 Adventure 1.25" w/137" Track
2022 Polaris Indy 850 Adventure 1.35" w/137" Track
2021 Polaris Indy 850 Adventure 1.35" w/137" Track
2020 Polaris Indy 850 Adventure 1.35" w/137" Track
2023 Polaris Indy 850 Adventure 1.50" w/137" Track
2022 Polaris Indy 850 Adventure 1.50" w/137" Track
2021 Polaris Indy 850 Adventure 1.50" w/137" Track
2020 Polaris Indy 850 Adventure 1.50" w/137" Track
2023 Polaris Indy 850 VR1 1.25" w/129" Track
2022 Polaris Indy 850 VR1 1.25" w/129" Track
2023 Polaris Indy 850 VR1 1.25" w/137" Track
2022 Polaris Indy 850 VR1 1.25" w/137" Track
2022 Polaris Indy 850 VR1 1.35" w/129" Track
2022 Polaris Indy 850 VR1 1.35" w/137" Track
2023 Polaris Indy 850 VR1 1.50" w/129" Track
2022 Polaris Indy 850 VR1 1.50" w/129" Track
2023 Polaris Indy 850 VR1 1.50" w/137" Track
2022 Polaris Indy 850 VR1 1.50" w/137" Track
2023 Polaris Indy 850 XC 1.25" w/129" Track
2022 Polaris Indy 850 XC 1.25" w/129" Track
2021 Polaris Indy 850 XC 1.25" w/129" Track
2020 Polaris Indy 850 XC 1.25" w/129" Track
2023 Polaris Indy 850 XC 1.25" w/137" Track
2022 Polaris Indy 850 XC 1.25" w/137" Track
2021 Polaris Indy 850 XC 1.25" w/137" Track
2020 Polaris Indy 850 XC 1.25" w/137" Track
2022 Polaris Indy 850 XC 1.35" w/129" Track
2021 Polaris Indy 850 XC 1.35" w/129" Track
2020 Polaris Indy 850 XC 1.35" w/129" Track
2022 Polaris Indy 850 XC 1.35" w/137" Track
2021 Polaris Indy 850 XC 1.35" w/137" Track
2020 Polaris Indy 850 XC 1.35" w/137" Track
2023 Polaris Indy 850 XC 1.50" w/129" Track
2022 Polaris Indy 850 XC 1.50" w/129" Track
2021 Polaris Indy 850 XC 1.50" w/129" Track
2020 Polaris Indy 850 XC 1.50" w/129" Track
2023 Polaris Indy 850 XCR 1.25" w/136" Track
2025 Polaris Indy 850 XCR 1.35" w/136" Track
2020 Polaris Indy 850 XCR 1.75" w/128" Track
2023 Polaris Patriot Boost Pro-RMK 850 Matryx Slash 3" w/163" Track
2022 Polaris Patriot Boost RMK 850 KHAOS Matryx Slash 3" w/155" Track
2020 Polaris Pro-RMK 850 2.6" w/155" Track
2020 Polaris Pro-RMK 850 2.6" w/163" Track
2019 Polaris Pro-RMK 850 2.6" w/163" Track
2020 Polaris Pro-RMK 850 3" w/163" Track
2020 Polaris Pro-RMK 850 3" w/174" Track
2022 Polaris Pro-RMK 850 Matryx 1.75" w/155" Track
2022 Polaris Pro-RMK 850 Matryx 2.75" w/155" Track
2023 Polaris Pro-RMK 850 Matryx Slash 3" w/163" Track
2020 Polaris RMK 850 KHAOS 2.6" w/155" Track
2020 Polaris RMK 850 KHAOS 3" w/155"
2024 Polaris RMK 850 KHAOS Matryx 2.75" w/155" Track
2024 Polaris RMK 850 KHAOS Matryx Slash 2.60" w/146" Track
2023 Polaris RMK 850 KHAOS Matryx Slash 2.60" w/146" Track
2022 Polaris RMK 850 KHAOS Matryx Slash 2.60" w/146" Track
2022 Polaris RMK 850 KHAOS Matryx Slash 2.75" w/155" Track
2022 Polaris RMK 850 KHAOS Matryx Slash 3" w/155" Track
2023 Polaris RMK 850 KHAOS Matryx Slash 3" w/163" Track
2020 Polaris Rush 850 Pro-S 1.25" w/120" Track
2020 Polaris Rush 850 Pro-S 1.35" w/120" Track
2020 Polaris Rush 850 Pro-S 1.5" w/120" Track
2019 Polaris Rush 850 XCR 1.35" w/121" Track
2019 Polaris Rush 850 XCR 1.75" w/121" Track
2021 Polaris SwitchBack 850 Assault 1.35" w/144" Track
2020 Polaris SwitchBack 850 Assault 1.35" w/144" Track
2021 Polaris SwitchBack 850 Assault 1.60" w/144" Track
2021 Polaris SwitchBack 850 Assault 2" w/144" Track
2020 Polaris SwitchBack 850 Assault 2" w/144" Track
2020 Polaris SwitchBack 850 Pro-S 1.25" w/137" Track
2020 Polaris SwitchBack 850 Pro-S 1.35" w/137" Track
2020 Polaris SwitchBack 850 Pro-S 1.50" w/137" Track
2022 Polaris SwitchBack 850 XC 1.35" w/146" Track
2022 Polaris SwitchBack 850 XC 1.60" w/146" Track
2020 Polaris SwitchBack 850 XCR 1.25" w/136" Track
2020 Polaris SwitchBack 850 XCR 1.35" w/136" Track
2020 Polaris SwitchBack 850 XCR 1.75" w/136" Track
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