If you're dealing with starter issues on your Polaris Sportsman 335, this Caltric Bendix drive might be what you need. It's made specifically for the 1999-2000 Sportsman 335 models, so make sure yours matches before ordering. The Bendix is that mechanism that engages the starter with the engine flywheel - when it wears out, you get that annoying grinding noise or the starter just spins without turning the engine. This replacement part is built to the same specs as the original, so installation is pretty straightforward if you're mechanically inclined. Caltric is known for making decent quality aftermarket parts that don't break the bank. Much cheaper than going through Polaris directly. The fit is right on - bolts up properly and engages cleanly. If your Sportsman has been sitting awhile or the starter's been acting up, this could solve your starting problems. Definitely better than trying to rebuild a worn-out Bendix. Comes with everything you need for the replacement. Just make sure to disconnect the battery before installation for safety. Good to keep as a spare if you ride your ATV regularly - starter components do wear out eventually, especially on older machines. Solid replacement part that does what it's supposed to.