Rated 4.4 out of 5 stars.
Looking for a replacement crankshaft nut for your Polaris ATV or side-by-side?
This is the OEM-style nut that fits a range of Polaris Sportsman and Ranger models with 400cc or 500cc engines from 1997 through 2012.
Part number 3083905.
It's a critical fastener that secures the crankshaft pulley or gear, so if yours is stripped, damaged, or missing during a rebuild, you'll need a proper replacement.
Made to match original specs for correct thread size, torque, and fit.
Always use a torque wrench when installing to avoid over-tightening or under-tightening.
Good to have on hand for engine repairs, top-end rebuilds, or if you're doing maintenance like replacing the timing chain or stator.
Double-check your model and year before ordering to ensure compatibility.
