954-05021 Lawn Mower Tractor 42" Deck Belt 1/2" x 99.75" Made with Kevlar for MTD Cub Ct Craftsman 754-05021, XT1 XT2 LT42 LT42 EFI, LT42 KH, LX42 KH, LX42 KW, LX42, LX42 EFI T8000 T7800 T210 TB1942

What It Is

This is a 42-inch deck drive belt for lawn tractors, designed to transfer power from the engine pulley to the mower blades. It’s built with Kevlar for added durability and fits a wide range of MTD, Cub Cadet, and Craftsman models, including XT1, XT2, LT42, and LX42 series.

Fitment & Compatibility

Before buying, verify your mower’s deck size is exactly 42 inches. This belt measures 1/2 inch wide by 99.75 inches long—any variation (e.g., 100-inch belt) will not fit correctly. It replaces OEM part numbers 954-05021 and 754-05021. Compatible models include Craftsman T8000, T7800, T210, TB1942, and Cub Cadet LT42 KH, LX42 KH, LX42 KW, LX42, and LX42 EFI. Check your owner’s manual or look for a belt routing diagram under the deck to confirm belt length and width.

Key Things to Know

• Quality: Kevlar construction offers longer life than standard rubber belts, but avoid overtightening—this can cause premature wear on pulleys.
• Installation: Moderate difficulty; you’ll need to remove the deck or use a spring tension tool. Watch for belt routing—wrong path will cause slippage or blade disengagement.
• Common gotchas: This belt is not for zero-turn mowers or 46-inch+ decks. Also, if your mower uses a different deck belt length (e.g., 100-inch), this will be too short.
• Performance: Users report smooth operation and fewer replacements compared to non-Kevlar belts, but it may still stretch slightly over time.

Should You Buy It

Buy this if you own a compatible 42-inch deck MTD/Cub Cadet/Craftsman tractor and want a durable, OEM-replacement belt at a fair price. It’s a solid upgrade over standard belts, but verify your exact model and deck size first to avoid fitment issues.