Choose standard or over-size bore: Standard Bore, .5mm Over, 1.00mm Over, Over-Size Bore, Over-Size Bore. Select the WSM SKU that matches your engine bore.
Option
Bore
WSM SKU
Standard (this listing)
99.00 mm
50-312K
+0.50 mm
99.50 mm
50-312-05K
+1.00 mm
100.00 mm
50-312-07K
+0.00 mm
99.25 mm
50-312-04K
+0.00 mm
—
50-312-06K
OEM References
2204960
3022288
Fitment
Fits selected Polaris models — see table below.
Polaris ATV
Model
Engine
Years
Sportsman 6X6
570
2017–2026
Sportsman Ace
570
2015–2019
Sportsman EFI
570
2014–2020
Sportsman HO
450
2016–2017
Sportsman Hunter
570
2022–2024
Sportsman Hunt
570
2025
Sportsman LE
570
2023–2025
Sportsman Premium
570
2021–2026
Sportsman SP
570
2016–2026
Sportsman TR
570
2024
Sportsman Touring
570
2015–2026
Sportsman Tractor
570
2016–2023
Sportsman Trail
570
2021–2026
Sportsman Utility
570
2021–2025
Sportsman X2
570
2015–2026
Sportsman ZUG
570
2016–2024
Sportsman
450
2016
Sportsman
570
2014–2026
Polaris UTV
Model
Engine
Years
Pro XD Mid-Size Gas Crew
570
2023–2026
Pro XD Mid-Size Gas
570
2023–2026
RZR Trail
570
2022
RZR
570
2012–2021
Ranger Crew Full Size
570
2020–2025
Ranger Crew-4
570
2016–2020
Ranger Crew-6
570
2018–2020
Ranger Crew
570
2016–2026
Ranger Full Size
570
2016–2024
Ranger SP Northstar
570
2024–2026
Ranger SP Premium
570
2024–2025
Ranger
500
2026
Ranger
570
2012–2026
Fitment confirmation: Please confirm suitability using the OEM references, fitment guide and product images before ordering.
