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Title: Didn't fit my Polaris Sportsman 400
Review: I bought one of these for my Sportsman 500 and it worked fine. Bought another one for my Sportsman 400 and it didn't fit despite Amazon saying that it would. The threads weren't right. Thankfully I gave up trying to force it on before I stripped the male threads on the machine. Went to NAPA and bought their filter and it screwed right on.
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