Engine Parts
Other Variations
Piston Kit Top End Cast Polaris 850 Patriot
Part # 0910-6985
$367.95
National: 0
- —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
- —Piston kit includes the pistons, premium rings, heavy-duty wrist pins, circlips, and the small-end wrist pin needle bearing
- — Gaskets includes complete premium top-end gasket kit mirroring original equipment layouts for an airtight seal
Calculated shipping at checkout
30-day returns on unused parts
Ships in 1–3 business days
Specifications
Displacement850 cc
Engine Type2-Stroke
UnitsKit
Cooling SystemLiquid Cooled
TypeDual Ring
Piston MaterialCast
Skirt CoatingMolybdenum Disulphite
Product NameRebuild Kit
StyleTop End
Riding StyleSnow
Bore Size85.00 mm
Piston MaterialHypereutectic Alloy
Weight4.2 lbs
Dimensions (L x W x H)14" x 8.75" x 5.5"
Fits These Vehicles (155)
850 INDY XC 1372026
850 SwitchBack XC 1462026
Indy 850 XCR 1.35" w/136" Track2025
850 INDY VR1 1372025
Indy 850 XCR 1.6" w/128" Track2025
850 INDY XCR 1362025
SwitchBack 850 Assault 1.35" w/146" Track2025
Indy 850 XCR 1.6" w/136" Track2025
RMK 850 KHAOS Matryx Slash 2" w/146" Track2025
850 INDY VR1 137 Dynamix2025
SwitchBack 850 Assault 2" w/146" Track2025
SwitchBack 850 Assault 1.60" w/146" Track2025
Indy 850 XCR 1.35" w/128" Track2025
850 SwitchBack Assault 1462025
850 INDY XC 1372024
RMK 850 KHAOS Matryx Slash 2.60" w/146" Track2024
850 INDY VR1 1372024
850 SwitchBack Assault 1462024
850 SwitchBack XC 1462024
850 INDY XC 1292024
850 INDY XCR 1362024
Patriot Boost RMK 850 KHAOS Matryx Slash 2.75" w/155" Track2024
RMK 850 KHAOS Matryx 2.75" w/155" Track2024
Indy 850 VR1 1.25" w/129" Track2023
RMK 850 KHAOS Matryx Slash 3" w/163" Track2023
850 SwitchBack Assault 1462023
Indy 850 VR1 1.50" w/129" Track2023
850 INDY VR1 1372023
Indy 850 XCR 1.25" w/128" Track2023
850 INDY XCR 1362023
RMK 850 KHAOS Matryx Slash 2.60" w/146" Track2023
Indy 850 Adventure 1.25" w/137" Track2023
Indy 850 XC 1.50" w/137" Track2023
850 INDY XC 1372023
Pro-RMK 850 Matryx Slash 3" w/163" Track2023
Indy 850 VR1 1.50" w/137" Track2023
Indy 850 XCR 1.6" w/136" Track2023
850 SwitchBack XC 1462023
Indy 850 XC 1.25" w/137" Track2023
Patriot Boost Pro-RMK 850 Matryx Slash 3" w/163" Track2023
Indy 850 XC 1.25" w/129" Track2023
850 INDY XC 1292023
Indy 850 XCR 1.6" w/128" Track2023
SwitchBack 850 Assault 2" w/146" Track2023
Indy 850 Adventure 1.50" w/137" Track2023
Indy 850 VR1 1.25" w/137" Track2023
850 INDY VR1 1292023
Indy 850 XC 1.50" w/129" Track2023
Indy 850 XCR 1.25" w/136" Track2023
SwitchBack 850 Assault 1.60" w/146" Track2023
Indy 850 Adventure 1.25" w/137" Track2022
Indy 850 VR1 1.25" w/137" Track2022
Indy 850 VR1 1.50" w/137" Track2022
Indy 850 XC 1.35" w/137" Track2022
RMK 850 KHAOS Matryx Slash 2" w/146" Track2022
Indy 850 VR1 1.35" w/137" Track2022
850 INDY XC 1292022
850 PRO-RMK Matryx Slash 165 2.75in.2022
850 SwitchBack Assault 1462022
Indy 850 Adventure 1.50" w/137" Track2022
SwitchBack 850 XC 1.60" w/146" Track2022
Indy 850 VR1 1.50" w/129" Track2022
Indy 850 VR1 1.35" w/129" Track2022
850 INDY VR1 1292022
Indy 850 XC 1.35" w/129" Track2022
RMK 850 KHAOS Matryx Slash 2.60" w/146" Track2022
850 PRO-RMK Matryx Slash 155 3in.2022
SwitchBack 850 XC 1.35" w/146" Track2022
Indy 850 VR1 1.25" w/129" Track2022
RMK 850 KHAOS Matryx Slash 3" w/155" Track2022
850 PRO-RMK Matryx Slash 155 2.75in.2022
SwitchBack 850 Assault 1.60" w/146" Track2022
SwitchBack 850 Assault 1.35" w/146" Track2022
850 INDY VR1 1372022
Indy 850 XCR 1.25" w/128" Track2022
850 INDY XCR 1362022
Patriot Boost RMK 850 KHAOS Matryx Slash 3" w/155" Track2022
Pro-RMK 850 Matryx 1.75" w/155" Track2022
850 SwitchBack XC 1462022
Indy 850 Adventure 1.35" w/137" Track2022
RMK 850 KHAOS Matryx Slash 2.75" w/155" Track2022
850 PRO-RMK Matryx Slash 163 3in.2022
SwitchBack 850 Assault 2" w/146" Track2022
Indy 850 XC 1.25" w/129" Track2022
Indy 850 XC 1.25" w/137" Track2022
Indy 850 XC 1.50" w/129" Track2022
850 INDY XC 1372022
850 RMK KHAOS Matryx Slash 163 3in.2022
850 RMK KHAOS Matryx Slash 165 2.75in.2022
Patriot Boost RMK 850 KHAOS Matryx Slash 2.75" w/155" Track2022
Pro-RMK 850 Matryx 2.75" w/155" Track2022
Indy 850 XC 1.25" w/129" Track2021
Indy 850 XC 1.25" w/137" Track2021
Indy 850 XC 1.35" w/137" Track2021
Indy 850 XC 1.50" w/129" Track2021
850 INDY XC 1372021
SwitchBack 850 Assault 1.35" w/144" Track 2021
Indy 850 Adventure 1.50" w/137" Track2021
850 INDY VR1 1372021
Indy 850 XC 1.35" w/129" Track2021
850 INDY XC Launch Edition 1372021
850 SwitchBack Assault 1442021
SwitchBack 850 Assault 2" w/144" Track2021
Indy 850 Adventure 1.35" w/137" Track2021
850 INDY VR1 1292021
850 INDY XC Launch Edition 1292021
850 SwitchBack Assault 1462021
Indy 850 XC 1.50" w/137" Track2021
SwitchBack 850 Assault 1.35" w/146" Track2021
SwitchBack 850 Assault 1.60" w/144" Track2021
850 INDY XC 1292021
Indy 850 XCR 1.75" w/128" Track2020
Indy 850 XCR 1.35" w/128" Track2020
Pro-RMK 850 3" w/163" Track2020
RMK 850 KHAOS 2.6" w/155" Track2020
SwitchBack 850 XCR 1.25" w/136" Track 2020
SwitchBack 850 XCR 1.35" w/136" Track2020
SwitchBack 850 XCR 1.75" w/136" Track2020
Indy 850 XC 1.25" w/129" Track2020
Indy 850 XC 1.35" w/129" Track2020
Indy 850 XCR 1.25" w/128" Track2020
RMK 850 KHAOS 3" w/155"2020
Rush 850 Pro-S 1.5" w/120" Track2020
Indy 850 XC 1.25" w/137" Track2020
Indy 850 XC 1.35" w/137" Track2020
Indy 850 XC 1.50" w/129" Track2020
SwitchBack 850 Pro-S 1.50" w/137" Track2020
Indy 850 XC 1.50" w/137" Track2020
Pro-RMK 850 2.6" w/155" Track2020
850 SKS 1552020
850 SwitchBack Assault 1442020
SwitchBack 850 Pro-S 1.35" w/137" Track2020
Pro-RMK 850 3" w/174" Track2020
Pro-RMK 850 2.6" w/163" Track2020
SwitchBack 850 Assault 1.35" w/144" Track 2020
SwitchBack 850 Pro-S 1.25" w/137" Track 2020
Indy 850 Adventure 1.25" w/137" Track2020
850 SKS 1462020
Indy 850 Adventure 1.50" w/137" Track2020
Rush 850 Pro-S 1.25" w/120" Track 2020
Indy 850 Adventure 1.35" w/137" Track2020
Rush 850 Pro-S 1.35" w/120" Track2020
SwitchBack 850 Assault 2" w/144" Track2020
Rush 850 XCR 1.75" w/121" Track2019
Rush 850 XCR 1.35" w/121" Track2019
850 PRO-RMK 163 3in.2019
850 SwitchBack XCR2019
Pro-RMK 850 2.6" w/163" Track2019
850 Rush PRO-S2019
850 SKS 1552019
850 SKS 1462019
850 SwitchBack Assault 1442019
850 SwitchBack PRO-S2019
850 PRO-RMK 1552019
850 PRO-RMK 1742019
Not sure it fits? Call our Harley techs at 607-654-7431.
