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Title: Gasket Type
Review: I was having trouble finding an actual Polaris filter for my 2012 Sportsman so I decided to try these out. At 10 hours after installation the filter had vibrated loose to the point that the engine lost quite a bit of oil. The filter had been tightened to spec. After replacing with a OEM filter I noticed that these filters have a "round" gasket while the OEM filters have a "flat" type gasket. I think the flat gasket may provide a better grip for the filter. This may not be a problem in all applications but I would be cautious of using this part on a Polaris bike.
