954-04219 46 Inch Deck Belt for John Deere GX20072 Cub Cadet LTX 1045 LTX 1046 Troy Bilt Bronco 46 Horse 46 Horse XP Craftsman T140 46" Belt for John Deere 100 Series S100 Series/Aramid Cord/1/2 x103

What It Is

This is a 46-inch deck drive belt (1/2" wide x 103" length) with aramid cord construction, designed to transfer power from the engine pulley to the mower blades on select riding mowers with a 46-inch cutting deck. It fits John Deere 100/S100 series, Cub Cadet LTX 1045/1046, Troy-Bilt Bronco 46/Horse 46/XP, and Craftsman T140 models.

Fitment & Compatibility

Before buying, verify three things:

• Deck size: Your mower must have a 46-inch deck (not 42" or 48").
• Belt dimensions: This belt is 1/2" wide x 103" long. Measure your old belt—any deviation means it won’t fit.
• OEM cross-reference: Confirmed for John Deere 954-04219 (and GX20072), Cub Cadet 754-04219, Troy-Bilt 954-04219, and Craftsman 532-42-19. If your mower uses a different OEM number (e.g., 532-42-20), this won’t match.
• Deck type: Works with stamped steel 46" decks common on these brands. Does not fit fabricated decks or zero-turn mowers.

Key Things to Know

• Aramid cord vs. standard: Aramid (Kevlar-like) cord resists stretching better than polyester—good for high-torque decks, but still requires proper tension.
• Installation difficulty: Moderate. You’ll need to remove the deck or at least the belt guards. Expect 20–40 minutes if you’ve done it before.
• Common gotcha: The belt routing must match your deck’s pulley diagram exactly. Some models have a different belt path for the spindle orientation—take a photo before removing the old belt.
• No pulley included: This is the belt only. If your pulleys are worn or rusty, the new belt may slip or wear prematurely.

Should You Buy It

If your 46-inch deck mower matches the listed OEM numbers and you want a durable belt that holds tension better than basic rubber, this is a solid, affordable replacement. Avoid if your deck isn’t 46 inches or if your old belt measures differently—fitment is specific.