Namura Standard Bore Top End Rebuild Kit Size B for Honda CRF450R 2013-2016 96mm

Namura Standard Bore Top End Rebuild Kit for Honda CRF450R 2013-2016 - Size B 96mm

This standard bore top end rebuild kit from Namura includes a piston, rings, wrist pin, and gasket set to restore compression and performance on Honda CRF450R motorcycles from 2013 to 2016, using a 96mm bore with the Size B piston specification.

Overview

The Namura top end rebuild kit is a complete assembly for refreshing the cylinder on a Honda CRF450R, combining a precision-machined 96mm piston with matching rings, pin, and head gaskets. Designed for riders who need a reliable top end kit to restore lost power or prepare for a new season, this kit delivers OEM-level fit and durability. Whether you are rebuilding for maintenance or after a race, this top end rebuild kit simplifies the job with everything needed in one box.

Built For Performance

• 96mm standard bore piston machined from high-silicone aluminum alloy for strength and thermal stability
• Namura’s proprietary ring package reduces friction while maintaining seal
• Includes head gasket, base gasket, and all necessary sealing components
• Precision wrist pin with needle bearing for smooth piston motion
• Balanced weight and skirt profile reduces noise and wear

Fits These Machines

• for Honda CRF450R 2013-2016

On-The-Job Use

• Complete top end rebuild for Honda CRF450R engines
• Motocross and off-road racing applications
• Trail riding and recreational use where new top end performance is needed

Specs At A Glance

Good To Know

Q: Will this kit work on my 2015 CRF450R? A: Yes, this top end rebuild kit is designed for Honda CRF450R models from 2013 through 2016, including the 2015 model year.

Q: Do I need any additional parts for installation? A: The kit includes all internal components required for the top end, but you should also replace the cylinder if worn and use fresh oil and coolant during reassembly.

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