Description
When your Polaris Sportsman 400’s original pistons show signs of wear or you’re rebuilding after a failure, a quality forged piston kit is non-negotiable for reliable performance. Wiseco’s high-silicone forged pistons deliver the strength and thermal stability needed for sustained ATV operation, whether you’re tackling trail riding or consistent use. This complete kit eliminates guesswork by bundling matched components—pistons, rings, wrist pins, and gaskets—ensuring your top-end rebuild is done right the first time.
What’s Included
- Forged piston (83.50mm bore)
- High-performance piston rings
- Wrist pins and circlips
- Top-end gasket kit
Technical Specifications
- High-silicone forged construction
- Minimal thermal expansion
- Polaris Sportsman 400 specific
- Model years 1994–2003
- MPN: PK1108
- Wiseco-matched ring set
- Non-interchangeable ring design
- Bolt-on installation ready
- Complete rebuild solution
