954-05021 Deck Belt Replaces Cub Cadet 42 inch Deck Belt, Fits Cub Cadet XT1, XT2, Craftsman T210, Troy-Bilt, MTD Riding Mower & Lawn Tractor (1/2" x 100")

What It Is

The 954-05021 deck belt drives the mower blades on 42-inch cutting decks used by Cub Cadet XT1/XT2, Craftsman T210, Troy-Bilt, and MTD riding mowers. It’s a replacement part for OEM belt 954-05021, sized 1/2-inch wide by 100 inches long.

Fitment & Compatibility

• Deck size: 42-inch decks only. Measure your old belt length (end-to-end, flat) to confirm it’s 100 inches; 1/2-inch width must match pulley grooves.
• Model compatibility: Fits Cub Cadet XT1 (LT42, LXT42), XT2 (LX42), Craftsman T210, Troy-Bilt Pony, Bronco, MTD 42-inch decks. Not for zero-turn or 46/50-inch decks.
• OEM vs aftermarket: This is an aftermarket belt. OEM Cub Cadet part number is 954-05021 (same). Check your owner’s manual or look up your model’s belt part number before buying.
• Measure your old belt: If it’s stretched or worn, compare length to a new 100-inch belt—even 1/2-inch difference can cause slipping or poor blade engagement.

Key Things to Know

• Quality: Rated 3.9/5. Some users report shorter lifespan than OEM (1-2 seasons vs 3+). Inspect pulleys for wear or rust before installing—damaged pulleys chew belts.
• Installation: Moderate difficulty—requires removing deck (or accessing belt path from above). Use a belt routing diagram for your model; routing mistakes cause immediate failure.
• Common gotcha: The belt can flip on the deck if tension is too loose. Check deck spindle bearings—wobbly spindles kill belts fast.
• Price: $16.88 is typical for aftermarket; OEM runs $25-35. Good budget option if you change belts annually.

Should You Buy It

Buy if you need a quick, low-cost replacement for a 42-inch Cub Cadet or compatible MTD-style deck and are comfortable with DIY installation. Skip if you want maximum durability or have a zero-turn mower—OEM or a premium aftermarket belt (Kevlar-reinforced) lasts longer for heavy use.