Restore proper compression and support reliable engine performance with the Namura NA-50004-4R piston ring set. Designed for use with Namura pistons only, this replacement ring set is sized for pistons with a 92.97 mm bore application. It is a practical choice for engine rebuilding, top-end service, and replacement of worn or damaged piston rings.
Manufactured for Namura piston assemblies, the NA-50004-4R helps maintain the seal between the piston and cylinder wall. Properly fitted rings can support compression, oil control, and efficient combustion while helping reduce blow-by. Always verify the piston model, cylinder specifications, ring groove configuration, and manufacturer service requirements before installation.
These Namura piston rings are intended for compatible applications using Namura pistons and should not be substituted across unrelated piston designs. Follow the applicable engine service manual for ring orientation, end-gap inspection, installation procedures, and break-in requirements. The manufacturer part number is NA-50004-4R, and the vendor part number is 186-50044R.
Features:
- Size: 92.97 mm piston ring set for compatible Namura piston applications
- Brand: Namura
- Model: NA-50004-4R piston ring set
- Manufacturer Part Number: NA-50004-4R
- Vendor Part Number: 186-50044R
- Fitment: Designed for Namura pistons only; verify piston and engine compatibility before installation
- Application: Suitable for engine rebuilding, top-end service, and replacement of worn piston rings