Wiseco 74.50mm Piston Kit for 1994-1995 Polaris 300 2x4 4x4 Big Boss 300 6x6 PK1516

If you're rebuilding the top end on your Polaris 300, settling for inferior pistons is a shortcut to premature wear and lost power. Wiseco's forged piston kit delivers the thermal control and durability you need to keep your engine reliable through aggressive riding and repeated rebuilds. This complete kit eliminates guesswork—everything you need is included, so you can get back on the trail with confidence.

The high-silicone forged construction resists thermal expansion better than cast alternatives, which means tighter tolerances, better ring seal, and consistent performance across varying riding conditions. Whether you're running stock or modded, this kit is engineered to handle it. Installation is straightforward for anyone comfortable with basic top-end work, and the precision fit ensures you won't chase fitment issues during assembly.

• 74.50mm bore size
• Fits 1994-1995 Polaris 300
• Fits 2x4, 4x4, Big Boss 300, 6x6
• High-silicone forged pistons
• Reduced thermal expansion
• Includes piston rings
• Includes wrist pins
• Includes circlips
• Top-end gasket kit included
• Complete installation hardware
• Wiseco-specific components
• Not interchangeable with competitors
• Bolt-on installation
• Two-cycle engine application
• MPN: PK1516