03.4334 Pro-X Connecting Rod Kit for Suzuki RM-Z250 RMZ 250 2004-2026

Pro-X Connecting Rod Kit for Suzuki RM-Z250

This Pro-X connecting rod kit, part 03.4334, rebuilds the crankshaft lower end on Suzuki RM-Z250 machines from 2004 through 2026 so the engine can rev cleanly again.

Overview

This Pro-X connecting rod kit for Suzuki replaces the worn rod and bearing assembly at the heart of the crankshaft. It brings rod length and bearing clearance back into spec so the piston stays aligned through the stroke. It is made for four-stroke motocross riders and engine builders servicing an RM-Z250 from 2004 through 2026.

Built For Performance

• Connecting rod kit engineered as a direct replacement for the stock lower end assembly
• Part number 03.4334 identifies this kit for the Suzuki RM-Z250 application
• Includes rod, bearing, and pin components needed for a crank rebuild
• Hardened steel construction suited to high-rpm four-stroke motocross duty
• Machined tolerances designed for press-fit crankshaft assembly

Fits These Machines

• for Suzuki RM-Z250 2004
• for Suzuki RM-Z250 2005
• for Suzuki RM-Z250 2006
• for Suzuki RM-Z250 2007
• for Suzuki RM-Z250 2008
• for Suzuki RM-Z250 2009 and later through 2026

On-The-Job Use

• Bottom-end rebuilds on Suzuki RM-Z250 motocross bikes
• Crankshaft service when rod play or bearing noise develops
• Race-season refresh where the lower end is rebuilt with the top end
• Shop repairs needing a replacement rod assembly for the stock crankshaft

Specs At A Glance

Good To Know

Q: Does this kit come with crank bearings and seals? A: This is a connecting rod kit for the lower end, so main bearings and seals are usually ordered separately. Check your parts diagram for the full rebuild list.

Q: Can I install this rod kit without machining equipment? A: No, pressing the crank apart and truing it back to spec calls for a press and a truing stand. Have a qualified machinist handle the assembly.

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