Namura .040 Over Bore Piston & Gasket Kit for Polaris Sportsman 550 97.6mm
Namura .040 Over Bore Piston & Gasket Kit for Polaris Sportsman 550 97.6mm
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.040 Over Bore Piston & Gasket Kit for Polaris
This overbore piston and gasket kit for Polaris Sportsman 550 includes a 97.6mm piston, rings, and gasket set for .040 oversized cylinder rebore.
Overview
The Namura .040 Over Bore Piston & Gasket Kit is engineered for Polaris Sportsman 550 engines needing a 97.6mm oversized piston. It provides all gaskets for a complete top end rebuild, restoring compression and power.
Built For Performance
- .040 oversize piston for increased displacement
- 97.6mm bore size for exact fit
- Complete gasket set included
- High quality rings for proper sealing
- Namura construction ensures longevity
Fits These Machines
- for Polaris Sportsman 550
On-The-Job Use
- Rebuilding Polaris Sportsman 550 top end
- Off-road utility and trail riding
- Engine performance restoration
Specs At A Glance
| Bore Size | 97.6mm |
| Oversize | .040 |
| Kit Includes | Piston, Rings, Gaskets |
Good To Know
Q: Do I need to hone the cylinder before installing this piston? A: Yes, the cylinder must be honed or bored to 97.6mm for proper piston fit and ring seating.
Q: Is the gasket kit reusable? A: No, gaskets should be replaced each time the top end is opened to ensure a proper seal.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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