Namura .040 Over Bore Piston Rings for Yamaha 350 4-Stroke ATV's 84mm
Namura .040 Over Bore Piston Rings for Yamaha 350 4-Stroke ATV's 84mm
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Namura .040 Over Bore Piston Rings for Yamaha
These Namura .040 over bore piston rings for Yamaha seal the combustion chamber to maintain compression in 4-stroke engines.
Overview
The Namura .040 over bore piston rings for Yamaha provide a precise seal against cylinder walls for improved engine performance. Choosing Namura .040 over bore piston rings for Yamaha ensures that tolerances meet engine rebuild specifications.
Built For Performance
- Designed for 84mm over bore applications
- High-tensile material for heat resistance
- Chrome-plated surface for wear protection
- Maintains consistent radial tension
- Precise ring end gap for optimal sealing
Fits These Machines
- for Yamaha 350 4-Stroke ATV
On-The-Job Use
- Restoring compression in a rebuilt engine
- Used when cylinders are bored to .040 over
- Replacement for worn ring sets
Specs At A Glance
| Size | .040 Over Bore |
| Bore Diameter | 84mm |
Good To Know
Q: Must the cylinder be honed before installation? A: Proper surface preparation including a cross-hatch hone is necessary for the rings to seat correctly.
Q: Do these fit stock cylinders? A: No, these are sized specifically for .040 over bore cylinders.
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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