Namura Brand Piston and Rings Kit

1989-1993 Polaris 250 Big Boss

This is a new piston and rings kit for ALL year models from 1989-1993 for your Polaris 250 Big Boss. Don't waste your time rebuilding your motor with cheap quality, inferior parts. Build it right the first time with this top quality kit. Namura piston and rings kits feature smooth piston heads for better fuel efficiency, hard anodized crowns making them 75% stronger than non-anodized pistons, a MOS2 Teflon/Molydbenum coating giving them high durability and lubricity, and they are made to exact OEM specifications. This kit comes complete with the piston, rings, wrist pin and both circlips. It comes in several sizes, so be sure to select the one you need carefully. If you simply need replacement rings, we offer these as well in our other listings. Also, since you're rebuilding your top end, you'll need the gaskets, which we offer in our selection. Keep in mind, if your cylinder needs machining, we offer complete machine work as well.