MTD 783-06424A-0637 Black Belt Cover 42" Deck for Murray Troy-Bilt Pony Bronco 775S 795S 42 M1642 T1200 2000

What It Is

This is a black plastic belt cover (OEM part 783-06424A-0637) that fits 42" cutting decks on select Murray, Troy-Bilt, and MTD lawn tractors. It shields the deck drive belt from debris and helps keep the belt properly routed.

Fitment & Compatibility

• Deck size: Only fits 42" decks. Measure your deck width before ordering.
• Brands: Murray, Troy-Bilt, MTD (including Pony, Bronco, 775S, 795S, M1642, T1200, 2000 series). Also fits some Yard Machines, Bolens, and Huskee models with 42" decks.
• OEM vs aftermarket: This is an OEM Troy-Bilt/MTD part, so fitment is exact. Aftermarket covers may require drilling or not align.
• Check mounting: Verify you have the two screw holes on the deck near the belt path. Some older decks use a different bracket.
• Model number: Confirm your mower’s model number (stamped under seat or on frame) cross-references to 783-06424A-0637.

Key Things to Know

• Easy install: Takes 5-10 minutes with a 1/4" or 5/16" socket. No special tools.
• Durable plastic: Holds up well to sun and impacts, but can crack if overtightened. Hand-tighten screws.
• Common gotcha: If your old cover was missing, check that the belt routing is correct before installing the new cover. Wrong routing can cause the cover to rub.
• No belt included: This is the cover only. If your belt is worn, replace it at the same time.

Should You Buy It

If your current belt cover is cracked, broken, or missing, this is a direct OEM replacement that fits without modification. It’s worth $15 for safety and belt protection, especially if you mow in tall grass or debris. Skip it only if your deck is not 42" or your model isn’t listed.