Namura Standard Bore Size B Piston Kit for Yamaha Raptor 700 for 2015-2025 102mm

Standard Bore Size B Piston Kit for Yamaha

This piston kit for Yamaha Raptor 700 engines (2015-2025) features a standard bore size of 102mm with B grade specification, replacing the factory piston assembly.

Overview

This piston kit is designed for the Yamaha Raptor 700, providing a direct replacement for the stock piston in models from 2015 to 2025. The 102mm standard bore maintains original displacement, while the B grade indicates the precise sizing tolerance for proper ring seal. Whether rebuilding a worn top-end or refreshing a high-mileage engine, this piston kit restores compression and performance.

Built For Performance

• Manufactured from high-silicon aluminum alloy for reduced weight and heat dissipation
• Includes complete ring set for proper compression and oil control
• Precisely machined wrist pin bore ensures smooth motion
• B-grade sizing offers a tighter piston-to-cylinder clearance for optimal sealing
• Direct replacement design fits original cylinder without overboring
• Compatible with standard bore cylinders; no need to resleeve

Fits These Machines

• for Yamaha Raptor 700 (2015-2025)

On-The-Job Use

• Top-end engine rebuild for Yamaha Raptor 700 ATVs
• Restoring lost power and reducing oil consumption on high-mileage engines
• Base for performance upgrades when combined with ported heads or camshafts
• Regular maintenance replacement for racing or trail-ridden vehicles

Specs At A Glance

Good To Know

Q: Do I need to measure the cylinder before installing this piston kit? A: Yes, always measure the cylinder bore to confirm it is within the standard 102mm specification and within wear limits; excessive taper or out-of-round may require an oversized piston or cylinder replacement.

Q: Should I replace the wrist pin and circlips as well? A: It is highly recommended to install new wrist pin bearings and circlips during piston replacement to avoid premature wear or failure; these may need to be sourced separately if not included.

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