46" 48" Deck Spindle Assembly Fit for Husqvarna RZ4623 Z246 RZ4622 RZ46i YTH2448 Zero Turn Craftsman AYP Poulan Pro Lawn Mower Replaces 174358 174356 532174356

What It Is

This is a replacement deck spindle assembly for 46- and 48-inch mower decks, used on Husqvarna, Craftsman, AYP, and Poulan Pro zero-turn and lawn tractor models. It houses the bearings and pulley that spin the mower blade, and it’s designed to replace OEM part numbers 174358, 174356, and 532174356.

Fitment & Compatibility

Before buying, confirm three things:

• Deck size: Fits 46" and 48" decks only—not 42" or 54".
• Model list: Compatible with Husqvarna RZ4623, Z246, RZ4622, RZ46i, YTH2448; Craftsman zero-turn and tractor models using these spindles; AYP and Poulan Pro equivalents.
• OEM cross-reference: Directly replaces Husqvarna/Craftsman parts 174358, 174356, 532174356. Verify your old spindle’s part number or measure the bolt pattern (typically 3-bolt, 3.5" center-to-center) and shaft diameter (5/8" or 3/4").

If your deck uses a different bolt pattern or shaft size, this won’t fit.

Key Things to Know

• Quality: Budget aftermarket part at $23.99. Bearings may be less durable than OEM—expect 1–2 seasons under heavy use.
• Installation: Moderate difficulty. Requires basic tools (socket set, wrench, possibly a puller). Remove blade, pulley, and retaining clip; replace as a unit.
• Common gotcha: Pulley nut torque is critical—60–80 ft-lbs. Overtightening can warp the housing or damage bearings.
• Check for play: Before installing, spin the spindle by hand. Roughness or wobble means a defective unit—return immediately.

Should You Buy It

If you need a quick, budget-friendly fix for a worn spindle on a 46" or 48" Husqvarna/Craftsman deck and you’re comfortable with basic wrenching, this is a solid value. Skip it if you demand long-term durability or have a non-listed model—go OEM instead.