Namura Connecting Rod Kit for Yamaha fits 1998-1999 YZ400F & 1998-2000 WR400F

Connecting Rod Kit for Yamaha YZ400F / WR400F

This connecting rod kit is designed for Yamaha YZ400F (1998-1999) and WR400F (1998-2000) models, providing a direct replacement connecting rod for engine rebuilds.

Overview

The connecting rod kit is a critical component for rebuilding the bottom end of Yamaha YZ400F and WR400F engines. It replaces the stock rod to restore proper crank assembly operation and withstand high RPM loads. Ideal for motocross and enduro riders needing reliable engine internals.

Built For Performance

• Forged steel construction for high strength and fatigue resistance
• Precision-machined big end and small end bores for accurate fit
• Includes wrist pin and needle bearing for complete rod assembly
• Heat-treated for durability under extreme engine conditions
• Manufactured by Namura to OEM specifications

Fits These Machines

• for Yamaha YZ400F (1998-1999)
• for Yamaha WR400F (1998-2000)

On-The-Job Use

• Rebuilding the bottom end of Yamaha motocross and enduro engines
• Replacement after rod bearing failure or high-mileage wear
• Restoring crankshaft integrity for competition use

Specs At A Glance

Good To Know

Q: Does this connecting rod kit include the crank pin or bearings? A: No, only the connecting rod, wrist pin, and needle bearing are included; the crank pin and main bearings must be sourced separately.

Q: Can this rod be used in a YZ426F? A: No, this rod is specifically designed for the YZ400F and WR400F engines; check your model year before ordering.

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