2Pcs Mower Spindle Assembly Replace AYP 174356 174358 Husqvarna 532174356 587125201 532174358 GTH2548 GT2248 GTH2248 YTH1848XP YTH2448 YTH2748 AYP 48" Decks with Tapped Bolt Zerk Grease

What It Is

This is a replacement spindle assembly for 48-inch AYP (American Yard Products) and Husqvarna mower decks. It drives the blade and houses the bearings; sold as a 2-pack, pre-assembled with a tapped bolt and zerk grease fitting for lubrication.

Fitment & Compatibility

• Deck size: Fits 48" stamped steel decks only—not 46", 50", or 54" decks.
• OEM cross-reference: Replaces AYP 174356, 174358; Husqvarna 532174356, 587125201, 532174358.
• Models: Compatible with Husqvarna GTH2548, GT2248, GTH2248, YTH1848XP, YTH2448, YTH2748, and other AYP 48" deck units (e.g., Craftsman, Poulan, Murray with same deck).
• Measure before buying: Check spindle shaft diameter (should be ~5/8") and bolt pattern (3-bolt, 2.75" center-to-center). Verify your deck uses a tapped bolt (not a nut on top).
• Zerk grease: This assembly has a grease fitting—some OEM spindles don’t. If your deck has no zerk, you’ll need to drill/tap the housing or swap to a compatible fitting.

Key Things to Know

• Quality: Aftermarket, but well-reviewed. Bearings are sealed and pre-greased; the zerk allows periodic re-greasing (use a grease gun every 25 hours).
• Installation difficulty: Moderate. Requires removing the blade, pulley, and snap ring. Use an impact gun for the pulley bolt. Torque spindle bolts to 30-40 ft-lbs.
• Common gotcha: The tapped bolt is 5/16"-24 thread—ensure your blade bolt matches. If your old spindle used a nut on top, this assembly won’t fit without adapting.
• Check deck condition: If the spindle housing is bent or the deck is cracked, replacing the spindle alone won’t fix vibration. Inspect the deck first.

Should You Buy It

If you have a 48" AYP/Husqvarna deck with a tapped bolt and want a ready-to-install, greaseable spindle at half the OEM price, this is a solid value. Not for decks with nut-top spindles or non-48" decks.