Namura .040 Over Bore Piston Rings for Polaris Scrambler 850, Sportsman 850 88mm
Namura .040 Over Bore Piston Rings for Polaris Scrambler 850, Sportsman 850 88mm
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.040 Over Bore Piston Rings for for Polaris
These .040 over bore piston rings for for Polaris Scrambler 850 and Sportsman 850 restore cylinder compression and optimize combustion efficiency in 88mm engines.
Overview
These .040 over bore piston rings provide a precise seal against cylinder walls to maintain peak engine power. Designed specifically for for Polaris applications, these .040 over bore piston rings ensure longevity for high-performance engines. Mechanics rely on these .040 over bore piston rings when rebuilding the top end for reliable operation.
Built For Performance
- Manufactured to exact 88mm bore specifications
- Engineered for high thermal resistance
- Ensures proper oil scraping and lubrication
- Provides a tight seal to prevent blow-by
Fits These Machines
- for Polaris Scrambler 850
- for Polaris Sportsman 850
On-The-Job Use
- Restoring compression in worn cylinder bores
- Completing engine top-end rebuilds
- Improving power delivery in off-road trails
Specs At A Glance
| Bore Size | 88mm |
| Application | .040 Over Bore |
Good To Know
Q: Do I need to hone the cylinder before installation? A: Yes, honing the cylinder wall is recommended to ensure the rings seat correctly for a proper seal.
Q: Are these rings compatible with stock pistons? A: No, these rings are designed specifically for oversized pistons matching the .040 bore specification.
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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