Restore proper engine sealing with Namura NA-50003-2R piston rings, designed specifically for compatible Namura pistons with a 74.97 mm bore size. This replacement ring set supports consistent compression, helps control oil consumption, and contributes to reliable four-stroke engine performance when installed with the correct piston and cylinder configuration.
These piston rings are intended for use with Namura pistons only and should be matched to the applicable Namura piston model and engine application before installation. The rings are manufactured for the fit and operating requirements of compatible Namura piston assemblies, making them suitable for rebuilds, top-end service, and replacement applications where the original rings are worn or damaged. Verify bore size, ring groove specifications, and engine fitment to ensure proper compatibility.
Install the Namura NA-50003-2R rings according to the piston manufacturer’s instructions, including correct ring orientation, end-gap inspection, and cylinder preparation. Proper installation is essential for effective sealing, controlled lubrication, and long-term durability. Manufacturer part number NA-50003-2R and vendor part number 186-50032R provide reference points for confirming the correct replacement component.
Features:
- Bore Size: 74.97 mm piston ring set
- Brand: Namura
- Manufacturer Part Number: NA-50003-2R
- Vendor Part Number: 186-50032R
- Compatibility: Designed for use with compatible Namura pistons only
- Application: Replacement rings for engine rebuild and top-end service
- Performance: Supports compression sealing and oil control when properly installed