KOOTANS Mower Spindle Assembly for AYP 174356 174358 Husqvarna 532174356 587125201 532174358 Z246 GTH2548 GT2248 GTH2248 YTH1848XP YTH2448 YTH2748, Fits AYP 48" Decks 2002 & Newer (with Bolts, Zerk)

What It Is

This is a replacement mower spindle assembly for 48-inch AYP (American Yard Products) and Husqvarna lawn tractor decks built 2002 and newer. It houses the blade shaft and bearings that spin the cutting blade, and includes mounting bolts and a grease fitting (zerk) for maintenance.

Fitment & Compatibility

This spindle is designed specifically for AYP 48-inch fabricated decks (2002+), not stamped decks. Check your deck model number—it fits Husqvarna Z246, GTH2548, GT2248, GTH2248, YTH1848XP, YTH2448, YTH2748, and other AYP/Husqvarna units using OEM part numbers 174356, 174358, 532174356, 532174358, or 587125201. Measure the spindle housing diameter (typically 2.56 inches) and bolt pattern (3 bolts on 2.75-inch center). If your deck uses a different spindle (e.g., 42-inch or 54-inch), this won’t fit. Verify your deck’s spindle pulley size and belt routing—some 48-inch decks use a 4.5-inch or 5-inch pulley; this assembly uses a 4.5-inch pulley.

Key Things to Know

• Aftermarket quality is good for the price – Users report it matches OEM fit and holds up well under normal residential use. The included zerk fitting lets you grease bearings, extending life.
• Installation is moderate – Requires removing the old spindle (may need a puller if rusted), transferring the pulley, and torquing bolts to 30-40 ft-lbs. No special tools beyond basic sockets and a wrench.
• Check blade adapter – Some decks use a different blade bolt pattern; this spindle uses a standard 5/8-inch shaft with a 1-inch blade center hole. Verify your blade’s center hole size and drive hole pattern (usually 2 holes at 3 inches apart).
• Not for zero-turn or commercial mowers – This is for lawn tractors; commercial zero-turn spindles are heavier-duty and have different mounting.

Should You Buy It

If you own a Husqvarna or AYP lawn tractor with a 48-inch fabricated deck from 2002 or newer and need a reliable, budget-friendly spindle replacement, this is a solid choice. It saves you 30-50% over OEM and includes the zerk fitting for greaseable bearings. Avoid if you have a stamped deck, a different deck size, or need a heavy-duty commercial spindle.