03.6520 Pro-X Connecting Rod Kit for KTM EXC Racing 450 2003-2007

Pro-X Connecting Rod Kit for KTM EXC Racing 450

This Pro-X connecting rod kit for KTM fits EXC Racing 450 models from 2003 through 2007, supplying the rod, big-end bearing, and wrist pin required to rebuild the crankshaft bottom end as a direct replacement for OEM part 03.6520.

Overview

The Pro-X connecting rod kit for KTM EXC Racing 450 is a bottom-end rebuild component built for the 450 EXC Racing platform across the 2003 to 2007 model years. This connecting rod kit for KTM gives engine builders a matched rod assembly that restores crankshaft geometry after wear, rod knock, or bearing failure. It is aimed at riders and shops servicing high-hour EXC Racing 450 engines.

Built For Performance

• Complete kit includes connecting rod, big-end bearing, and wrist pin
• Manufactured to OEM-equivalent dimensions for the 450 EXC Racing engine
• Cross-references OEM part 03.6520 for easy lookup
• Heat-treated steel rod for strength under high-rpm loads
• Big-end bearing rated for high-load crank applications
• Sold as a single kit for one crankshaft rebuild

Fits These Machines

• for KTM EXC Racing 450, 2003
• for KTM EXC Racing 450, 2004
• for KTM EXC Racing 450, 2005
• for KTM EXC Racing 450, 2006
• for KTM EXC Racing 450, 2007

On-The-Job Use

• Bottom-end rebuild during a full engine overhaul
• Crankshaft repair after bearing failure or rod knock
• Preventive replacement on high-hour 450 EXC Racing engines
• Race engine builds that require a fresh connecting rod
• Restoring a 2003 to 2007 EXC Racing 450 for trail or enduro use

Specs At A Glance

Good To Know

Q: Does this kit include the crankshaft bearings? A: It includes the rod, big-end bearing, and wrist pin, which are the parts of a standard connecting rod kit. Main crankshaft bearings are separate and should be inspected during the rebuild.

Q: Is pressing required to install this rod? A: Yes, installing a connecting rod requires a press and crank truing tools, so this job is normally handled by a qualified engine builder.

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