3 Namura Piston Ring Kits for Yamaha 2003-2008 GP-R 1300 .020 Over Bore 84.5mm

3 Namura Piston Ring Kits for Yamaha

These three Namura piston ring kits are designed for Yamaha GP-R 1300 personal watercraft from 2003 to 2008, with a .020 over bore size of 84.5mm to restore compression and performance.

Overview

These three Namura piston ring kits are intended for Yamaha GP-R 1300 PWC models from 2003 to 2008, featuring a .020 over bore of 84.5mm. They provide a precise seal for improved engine compression and power. Ideal for rebuilding your personal watercraft top end.

Built For Performance

• Made from high-grade cast iron for durability
• Precision-ground to exact specifications
• Includes rings for three pistons (three kits)
• Designed for .020 oversize bore
• Helps restore lost compression and reduce oil consumption

Fits These Machines

• for Yamaha GP-R 1300 (2003-2008)

On-The-Job Use

• Personal watercraft engine rebuild
• Restoring top-end performance
• Routine maintenance after wear

Specs At A Glance

Good To Know

Q: Do these rings require gapping before installation? A: Yes, it is recommended to check and set the ring end gap according to your engine specifications before installing.

Q: Are these rings compatible with standard bore pistons? A: No, these rings are for .020 over bore pistons; use with matching oversize pistons.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.