Restore proper compression and sealing with Namura NA-50000-4R piston rings, designed specifically for Namura pistons with a 72.96 mm bore size. This ring set is intended for compatible engine applications that require replacement rings for Namura piston assemblies.
Manufactured by Namura and supplied under vendor part number NA-50000-4R, these piston rings support reliable combustion sealing and help maintain engine performance when installed with the correct Namura piston and cylinder configuration. Fitment is limited to compatible Namura pistons; verify the piston model, bore size, ring specifications, and engine application before installation.
For best results, install according to the engine manufacturer’s service procedures and confirm ring orientation, end gap, and cylinder condition. Proper preparation and installation help promote consistent sealing, oil control, and long-term durability.
Features:
- Fitment: Designed for compatible Namura pistons only
- Bore Size: 72.96 mm
- Brand: Namura
- Manufacturer Part Number: NA-50000-4R
- Application: Replacement piston rings for compatible engine assemblies
- Installation: Verify piston model, ring specifications, cylinder condition, and required end gap before installation