918-04822B Spindle Assembly Fit for Craftsman Cub Cad Troy Bilt Pony Bronco 42" Deck Tractor Riding Mower, Replace 918-04822A 618-04822, Including Threaded Bolt &Hole, 2 Pack

What It Is

This is a 2-pack of replacement spindle assemblies for the cutting blades on 42-inch deck riding mowers from Craftsman, Cub Cadet, and Troy-Bilt. It directly replaces worn or damaged OEM spindles (918-04822A, 618-04822) to restore blade rotation and cutting performance.

Fitment & Compatibility

• Deck size: Only for 42-inch decks. Do not use on 46” or 50” decks.
• Brands/models: Craftsman (LT/GT series), Cub Cadet (LTX/XT series), Troy-Bilt Pony, Bronco, and similar MTD-built tractors with 42” stamped decks (approx. 2005–2020).
• OEM vs aftermarket: This is a direct aftermarket replacement for OEM part numbers 918-04822A and 618-04822. It includes the threaded bolt and hole, so you don’t need to reuse old hardware.
• Measurements: Verify spindle shaft diameter (approx. 1” with a ⅝” hex output) and bolt pattern (4-bolt flange, 3” center-to-center). Measure your existing spindle’s bolt hole spacing and shaft length before ordering.

Key Things to Know

• Quality: The assembly is solid for the price—steel housing with sealed bearings. Expect similar lifespan to OEM (2–3 seasons with normal use).
• Installation difficulty: Moderate. Requires removing the deck, unbolting the old spindle, and transferring the blade/pulley. A socket set and torque wrench (30–40 ft-lbs on flange bolts) are needed.
• Common gotcha: The included threaded bolt may be slightly different from your original—check thread pitch (typically ⅜”-24) before final torque. Also, ensure the spindle shaft keyway aligns with your pulley.
• Pack size: 2-pack means you can replace both spindles at once, saving time and preventing uneven wear.

Should You Buy It

If you have a 42” Craftsman, Cub Cadet, or Troy-Bilt riding mower with a failing spindle (wobbling blades, uneven cut, or grinding noise), this is a reliable, cost-effective fix. It’s best for DIY homeowners who want a direct swap without hunting for OEM parts. Skip it if your deck is larger than 42” or you need a commercial-duty spindle for heavy daily use.