Deck Spindle Shaft for Spartan RZ Series Zero Turn Mowers SKU: 437-0023-00

When a spindle shaft wears or gets damaged, your mower deck develops vibration, uneven cuts, and bearing noise that tells you something is wrong inside the spindle assembly. This genuine Spartan replacement shaft restores the smooth, stable blade rotation your RZ Series mower was built to deliver.

Why Genuine Matters

• Precision-machined to exact Spartan specifications for proper bearing fit
• Heat-treated steel construction handles high-rpm operation and cutting loads
• Factory tolerances eliminate the guesswork of aftermarket alternatives
• Designed specifically for the demands of zero-turn mowing

When your spindle assembly starts making noise or the cut quality suffers, this shaft gets your RZ Series deck back to factory performance. With over 55 years of parts experience, S&H Parts can help confirm the right fit for your specific model.