Spindle Nut

This high‑quality replacement spindle nut (SKU B1MT125) is designed to secure the spindle assembly on your mower deck, ensuring safe and reliable blade operation. It directly replaces OEM parts MTD 712-0417 and 912-0471, making it a perfect fit for a wide range of MTD and compatible lawn tractors. Manufactured from durable materials, this nut provides a secure hold and long service life, helping you maintain a clean, even cut.

• Direct OEM replacement – matches MTD 712-0417 and 912-0471 for hassle‑free installation.
• Constructed from robust steel to withstand vibration and outdoor conditions.
• Ensures a tight, secure fit on the spindle shaft, reducing blade wobble.

• MTD / Cub Cadet / Troy‑Bilt lawn tractors with 42" and 46" fabricated decks
• Rover / Yard‑Man models using MTD spindles
• Many aftermarket spindle assemblies requiring a 5/8" - 18 UNF nut

Deck Hardware & Fasteners – replacement nuts, bolts and washers for mower deck maintenance.