8TEN Deck Spindle for John Deere LT155 LT133 LT150 LT160 LT166 LT180 AM128048 AM126112

What It Is

This is an aftermarket deck spindle assembly designed to replace the OEM AM128048 or AM126112 spindle on John Deere LT-series lawn tractors (LT133, LT155, LT150, LT160, LT166, LT180). It drives the mower blade, supporting the blade pulley and bearing housing.

Fitment & Compatibility

• Check your deck size: Fits 42-inch, 44-inch, and 48-inch decks on these models. Measure your deck width to confirm.
• Model verification: Works on John Deere LT133, LT155, LT150, LT160, LT166, and LT180. Not for X-series or older GT models.
• OEM replacement: Directly replaces John Deere part numbers AM128048 and AM126112. No modification needed.
• Measure before buying: Confirm the spindle shaft diameter (typically 5/8-inch) and overall height (about 4.5 inches). Compare to your old spindle.
• Bearing check: This unit uses sealed bearings—no grease fittings. If your original had a zerk fitting, this is a different style.

Key Things to Know

• Quality note: 8TEN is a reputable aftermarket brand. Bearings are pre-lubricated and sealed, but may not last as long as OEM John Deere spindles under heavy use.
• Installation difficulty: Moderate. Requires removing the deck, belt, pulley, and blade. You’ll need a socket set, a puller for the pulley, and possibly a breaker bar for stubborn bolts.
• Common gotcha: The spindle bolt (that holds the blade) is reverse-threaded on some models. Turn clockwise to loosen. Check your deck manual.
• Warranty: Usually includes a 1-year limited warranty. Keep your receipt.

Should You Buy It

If you need a budget-friendly, drop-in replacement for a worn spindle on your LT-series Deere and you’re comfortable with basic deck disassembly, this is a solid choice. It’s not built for commercial-grade abuse, but for a residential lawn tractor, it offers good value at roughly half the OEM price.