6180240 9180240 6180430 9180430 Spindle Shaft for MTD OEM

Product Overview

This Spindle Shaft is a direct replacement for MTD lawn mowers and tractors, designed to transfer power from the pulley to the blade. It fits many MTD, Troy-Bilt, Cub Cadet, and Yard Machines models, offering a durable steel construction to withstand heavy cutting. Ideal for homeowners and repair shops, this spindle shaft restores mowing performance and prevents blade wobble.

Key Features & Performance

• Precision-machined for a tight, wobble-free fit
• Made from hardened steel for long-lasting strength
• Direct OEM replacement – no modifications needed
• Compatible with both 5/8" and 1" bore pulleys (verify existing setup)
• Resists rust and corrosion for extended life

Common Uses

• Replacing worn or bent spindle shafts on riding lawn mowers
• Repairing MTD deck assemblies with damaged spindles
• Restoring smooth blade rotation and even cut quality
• Maintenance during annual deck service

Technical Specifications

• Part Number(s): 618-0240, 918-0240, 618-0430, 918-0430
• Material: Hardened Steel
• Length: Approximately 6.5 inches (varies by model)
• Diameter: 0.75 inch shaft

Frequently Asked Questions

Q: Does this spindle shaft come with bearings or a housing? A: No, this is just the shaft itself; bearings and housing must be ordered separately if needed.

Q: Will this fit my MTD 42-inch deck? A: This shaft is designed for many MTD decks, but compatibility depends on the pulley bore and deck design; please verify your original part number matches one of the OEM numbers listed.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.