Husqvarna Genuine 596873701 Welded Spindle Kit RH 15" OEM

What It Is

The Husqvarna Genuine 596873701 is a right-hand (RH) welded spindle assembly for 15-inch cutting decks. It drives the blade via a pulley and houses the bearings that allow the blade to spin freely. This OEM part is designed for residential and light-commercial Husqvarna zero-turn and lawn tractors.

Fitment & Compatibility

• Deck size: Fits 15-inch spindle spacing decks only—measure center-to-center of existing spindle mount holes before ordering.
• Models: Common on Husqvarna YTH, LTH, and Z200 series (e.g., YTH22V46, LTH130, Z242F). Also fits some Craftsman and Poulan Pro models with 15″ spindle decks.
• OEM vs aftermarket: This is genuine Husqvarna—aftermarket spindles may use different bearing grades or thinner welds. OEM ensures bolt pattern matches without modification.
• Measurements: Overall height approx. 5.5″; pulley diameter 4.5″; bolt pattern 3.25″ center-to-center. Verify your old spindle’s height and pulley size match.
• Left vs right: This is the RH side (from operator’s seat). LH spindle is part #596873801.

Key Things to Know

• Quality: Welded steel housing with sealed bearings—durable for typical residential use. Not intended for commercial mowing or heavy abuse.
• Installation difficulty: Moderate. Requires removing deck, belt, blade, and pulley. A puller or penetrating oil may be needed if the old spindle is seized.
• Common gotchas: The pulley nut is reverse-threaded on some Husqvarna models—check your service manual. Also, the spindle housing can crack if over-tightened; torque to spec (usually 30-40 ft-lbs).
• Bearings: Sealed and pre-greased—no maintenance needed. If you hear grinding or wobble, replace the entire spindle; bearings aren’t serviceable.

Should You Buy It

Buy this if you need a direct-fit, OEM replacement for a failed RH spindle on a 15″ Husqvarna or compatible deck. It’s a good value for DIY homeowners who want reliability without chasing aftermarket fitment issues. Skip it if you need a left-hand spindle, a different deck size, or commercial-duty strength.