1988-2004 Kawasaki KX500 Shift Star 13091-1555

4140 Steel Upgrade for Kawasaki OEM Part # 13091-1555 (HOLDER, CHANGE DRUM)

Don't settle for less when rebuilding your bottom end! The Shift Drum Position Holder is a critical, high-stress component that ensures your transmission locks into gear precisely. Our heavy-duty replacement is engineered to eliminate the sloppiness caused by wear on the original part.

The 4140 Strength Advantage

• Superior 4140 Chromoly Steel: This holder is precision-machined from 4140 Chromoly Steel, a material celebrated for its high strength, excellent fatigue resistance, and toughness—far surpassing the strength of standard OEM material.

• Restores Shifting Precision: Worn original holders can lead to the shift drum being held loosely, resulting in imprecise shifting, false neutrals, or gear popping. Installing a new, rigid 4140 holder guarantees the shift roller and pawl system operates with factory-new accuracy.

• Essential for Rebuilds: Recommended as a mandatory replacement during any full engine overhaul to ensure the long-term reliability and positive feel of your gear changes.

Verified Fitment

This high-strength Shift Drum Holder (13091-1555) fits a large number of iconic Kawasaki two-stroke models:

Always cross-reference the part number (13091-1555) with your specific model's parts diagram to confirm fitment.