Spindles & Bearings

UP2WIN 918-04822B Spindle Assembly Compatible with Craftsman Cub Tr oy Bilt Po ny Br onco 42" Mower Deck Tractor Riding Mower, Come with All The Mounting Hardware Including Threaded Bolt, 2P

4.5/5 (832 reviews)
$48.99
UP2WIN 918-04822B Spindle Assembly Compatible with Craftsman Cub Tr oy Bilt Po ny Br onco 42" Mower Deck Tractor Riding Mower, Come with All The Mounting Hardware Including Threaded Bolt, 2P
As an Amazon Associate, Mowers.Cloud earns from qualifying purchases.

Check current price, fitment notes, and availability on Amazon:

🛒 See Price on Amazon

What It Is

This is a replacement spindle assembly for the 42-inch cutting deck on popular riding mower models. It houses the pulley and blade spindle that drive the blade, designed to replace a worn or failed original part.

Fitment & Compatibility

Critical checks before purchase:

  • Deck size: Only fits 42-inch mower decks. Measure your deck if unsure.
  • Brands/models: Compatible with Craftsman, Cub Cadet, Troy-Bilt, Pony, and Bronco tractors. Verify your specific model number using the OEM part cross-reference (918-04822B).
  • OEM vs aftermarket: This is a direct-fit aftermarket replacement, not OEM. It includes all mounting hardware (bolts, washers) and a threaded bolt for the blade.
  • Measurements: The spindle shaft diameter is 1 inch. Confirm your blade’s center hole matches (most 42" deck blades do). The overall spindle height is roughly 4.5 inches—measure your old spindle to be certain.

Key Things to Know

  • Quality: Buyers report it’s comparable to OEM, with pre-installed bearings and a sealed housing. No grease fitting—it’s a sealed unit.
  • Installation difficulty: Moderate. You’ll need a wrench, socket set, and possibly a puller to remove the old spindle. The included hardware simplifies reinstallation.
  • Common gotchas: The blade bolt is left-hand threaded on some Craftsman models—confirm your deck’s thread direction before tightening. Torque the bolt to 40-50 ft-lbs. Also, check your deck’s spindle mounting holes for wear; if elongated, the new spindle may not seat properly.
  • Warranty: Typically 1-year limited. Keep your receipt.

Should You Buy It

If your 42" deck spindle is noisy, wobbling, or seized, this is a solid, cost-effective replacement. It’s best for DIYers with basic mechanical skills who want a complete kit (no extra parts to buy). Skip it if you need an OEM part for warranty reasons or if your deck has unusual mounting hole spacing.

Looking for a new Craftsman mower instead of a part?

Read Craftsman Mower Reviews ↗

Related Parts & Accessories

← More Spindles & Bearings · Mower Reviews ↗