WSM
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Replacement piston kit for selected Polaris 400 - 450 models (1997–2014) — WSM 50-307K / 3085538.
Product Details
| Brand |
WSM |
| Part Number |
50-307K |
| Product Type |
Piston Kit |
| Application |
Polaris |
Available Sizes
Choose standard or over-size bore: Standard Bore, .5mm Over, 1.00mm Over. Select the WSM SKU that matches your engine bore.
| Option |
Bore |
WSM SKU |
| Standard (this listing) |
88.00 mm |
50-307K |
| +0.50 mm |
88.50 mm |
50-307-05K |
| +1.00 mm |
89.00 mm |
50-307-07K |
OEM References
Fitment
Fits selected Polaris models — see table below.
Polaris
| Model |
Engine |
Years |
| Hawkeye HO |
400 |
2013–2014 |
| Magnum 2X4 |
425 |
1997–1998 |
| Magnum 4X4 |
425 |
1997–1998 |
| Magnum 6X6 |
425 |
1997 |
Polaris ATV
| Model |
Engine |
Years |
| Sportsman 4X4 |
400 |
2003–2010 |
| Sportsman HO |
400 |
2008–2014 |
| Sportsman |
400 |
2004–2005 |
| Sportsman |
450 |
2006–2007 |
Polaris UTV
| Model |
Engine |
Years |
| Ranger 2X4 |
425 |
2004–2005 |
| Ranger 4X4 |
400 |
2010–2014 |
| Ranger HO |
400 |
2011 |
Fitment confirmation: Please confirm suitability using the OEM references, fitment guide and product images before ordering.
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