2 Pack Deck Spindle Pulley Belt Guard Cover 783-06424A-0638 Compatible with MTD Troy-Bilt Cub Cadet Craftsman 42" 46" Riding Lawn Mowers Tractors Replaces 783-06424A 783-06424A-0638

What It Is

This is a 2-pack of deck spindle pulley belt guards (part numbers 783-06424A and 783-06424A-0638) designed to protect the belt and pulley system on 42" and 46" MTD-built riding mowers, including Troy-Bilt, Cub Cadet, Craftsman, and other brands. They prevent debris from jamming the belt and shield the operator from moving parts.

Fitment & Compatibility

Before buying, confirm your mower’s deck size is exactly 42" or 46" (measure cutting width, not overall deck). These guards fit MTD, Troy-Bilt, Cub Cadet, and Craftsman models with a stamped steel deck, typically from the 2000s–2010s. Check original part numbers: 783-06424A or 783-06424A-0638. Measure the guard’s mounting hole spacing (approx. 3" center-to-center) and compare to your existing guard. Not compatible with fabricated decks, zero-turn mowers, or 54" decks. Verify the pulley spindle diameter matches (usually 1" or 1-1/8").

Key Things to Buy

• Quality: These are aftermarket replacements, not OEM. Expect durable stamped steel but possibly thinner gauge than originals. Check for sharp edges before install.
• Installation: Easy—remove old guard (one bolt/nut), slide on new one, and tighten. No special tools needed. Takes 5–10 minutes per guard.
• Common Gotchas: If your deck has a different pulley offset (e.g., deeper belt groove), the guard may rub the belt. Test by hand-spinning the pulley after install. Also, some models use a left/right-specific guard—label them before removal.
• Quantity: Comes as a 2-pack, ideal for dual-spindle decks. Single-spindle decks (e.g., 42" with one center pulley) only need one—store the spare.

Should You Buy It

If you have a 42" or 46" MTD-based riding mower with a broken or missing belt guard, this is a cost-effective fix. It’s not OEM-grade but works fine for basic debris protection and safety. Skip it if you need exact OEM fit for a rare model or a fabricated deck.