539131898 Spindle Assembly with 532173434 Spindle Pulley for Husqvarna GT48DXLS, LGT48DXL, TS248G, TS348, TS348D, TS348XD, YT48DXLS, GT 48 DXLS, TS 248 G, TS 348D, TS 348 D, TS 348XD Tractors

What It Is

This is a complete spindle assembly (OEM part 539131898) that includes the spindle pulley (532173434) pre-installed. It drives the mower deck blades on select Husqvarna zero-turn and lawn tractors, specifically models with a 48-inch fabricated deck.

Fitment & Compatibility

Before buying, verify:

• Deck type: Fits Husqvarna 48-inch fabricated decks only. Will not work on stamped decks or 42/54/60-inch decks.
• Models confirmed compatible: GT48DXLS, LGT48DXL, TS248G, TS348, TS348D, TS348XD, YT48DXLS, GT 48 DXLS, TS 248 G, TS 348 D, TS 348XD.
• OEM vs aftermarket: This is a genuine Husqvarna OEM part—exact fit, no modifications needed. Aftermarket spindles may use different bearing sizes or pulley offsets.
• Measurements: Overall spindle height ~5.5 inches; pulley diameter 4.5 inches; mounting bolt pattern 3-bolt, 2.75-inch center-to-center. Check your old spindle matches.

Key Things to Know

• Quality: OEM bearings are sealed and greased—lasts 2-3 seasons under normal use. Aftermarket spindles often fail within one season.
• Installation difficulty: Moderate. Requires removing the deck, belt, and blade. You’ll need a socket set, torque wrench (blade bolt to 70-80 ft-lbs), and possibly a puller if the old spindle is seized.
• Common gotcha: The pulley is already mounted and torqued. Do not loosen or retighten it—just install the assembly as-is. Overtightening the pulley nut can warp the pulley.
• Blade alignment: After installation, spin the blade by hand. It should rotate freely and not contact the deck. If it rubs, you may have a bent deck or incorrect spindle height.

Should You Buy It

Buy this if you have one of the listed Husqvarna 48-inch fabricated deck models and your spindle is noisy, wobbling, or seized. At $44.99, this OEM assembly saves you the hassle of pressing bearings or sourcing a separate pulley. It’s the correct, durable fix—not a gamble.