8TEN Mower Spindle for Husqvarna PZ6034FX PZ6029FX PZ29D 525836401 580943306 60" Deck

What It Is

This is a replacement spindle assembly for the 60-inch cutting deck on Husqvarna PZ6029FX, PZ6034FX, and PZ29D zero-turn mowers. It houses the blade pulley and bearing that drive your mower blade.

Fitment & Compatibility

• Deck size: Only fits 60-inch fabricated decks on the models listed (PZ6029FX, PZ6034FX, PZ29D). Will not fit 48" or 54" decks.
• OEM numbers: Direct replacement for Husqvarna part numbers 525836401 and 580943306. Verify your current spindle has one of these numbers stamped on it.
• Measure before buying: The spindle housing is approximately 4.5" tall with a 1" shaft diameter. Measure your existing spindle height and shaft to confirm match.
• Aftermarket note: This is an 8TEN aftermarket part, not OEM Husqvarna. It may differ slightly in paint/finish but uses the same mounting hole pattern (3-bolt, 5.5" center-to-center).

Key Things to Know

• Installation difficulty: Moderate – requires removing the deck, blade, and pulley. A spindle puller tool is strongly recommended if the old one is seized.
• Bearing quality: 3.8-star average suggests acceptable quality, but some users report shorter bearing life than OEM. Inspect for smooth rotation before installing.
• Common gotcha: The included bolts may be metric (M8) while your original hardware is SAE – check thread pitch before assembly.
• Warranty: Typically 1-year limited warranty from 8TEN. No labor coverage.

Should You Buy It

Buy this if you have a Husqvarna PZ6029FX, PZ6034FX, or PZ29D with a 60" deck and want a budget-friendly replacement that matches OEM dimensions. Skip it if you need maximum bearing durability for heavy commercial use – OEM Husqvarna spindles ($50–80 more) typically last longer. For light to moderate residential or semi-commercial mowing, this is a solid value.