Namura .040 Over Bore Piston Rings for Polaris Sportsman 450 400 Ranger 88.9mm
Namura .040 Over Bore Piston Rings for Polaris Sportsman 450 400 Ranger 88.9mm
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Over Bore Piston Rings for for Polaris
These .040 over bore piston rings for for Polaris are precision engineered for engines requiring an 88.9mm bore size. Installing these .040 over bore piston rings for for Polaris ensures that your rebuilt engine achieves optimal sealing and consistent power output.
Overview
When performing a rebuild, these .040 over bore piston rings for for Polaris restore necessary compression. The .040 over bore piston rings for for Polaris are crafted from wear resistant materials to handle the stresses of off-road utility use. This set is designed to work seamlessly with matched oversized pistons.
Built For Performance
- Custom fit for 88.9mm bore
- Maintains factory compression levels
- Heat resistant alloy metallurgy
- Precision machined for gap integrity
- Reduces blow-by in high load applications
Fits These Machines
- for Polaris Sportsman 450
- for Polaris Sportsman 400
- for Polaris Ranger
Specs At A Glance
| Bore Size | 88.9mm |
Good To Know
Q: What is the purpose of the .040 over size? A: This size is used to compensate for cylinder wall wear that has been removed during the boring and honing process.
Q: Should I check ring orientation? A: Yes, ensure the ring markings are facing upward toward the crown of the piston during assembly.
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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