Troy-Bilt OEM Replaces Belt 1916657,954-04090,GW-1916657 1/2X25-1/2, FITS Models: Troy-Bilt Super Bronco, FRT, CRT, Bronco CRT and ProLine CRT roto-tillers

What It Is

This is a replacement drive belt (1/2" wide x 25-1/2" long) for specific Troy-Bilt roto-tillers, including Super Bronco, FRT, CRT, Bronco CRT, and ProLine CRT models. It transfers power from the engine to the tine drive system.

Fitment & Compatibility

Check your model number – This belt fits Troy-Bilt tillers with model numbers starting with 21A, 21B, 21C, 21D, 21E, 21F, 21G, 21H, 21K, 21M, 21P, 21R, 21S, 21T, 21U, 21V, 21W, 21X, 21Y, 21Z, 22A, 22B, 22C, 22D, 22E, 22F, 22G, 22H, 22K, 22M, 22P, 22R, 22S, 22T, 22U, 22V, 22W, 22X, 22Y, 22Z. Measure your old belt – Confirm it’s 1/2" wide and 25-1/2" long. OEM vs aftermarket – This is an OEM Troy-Bilt belt, not a generic. Aftermarket belts may vary in tension and durability. Deck size irrelevant – This is for tiller tine drive, not a mower deck.

Key Things to Know

• Quality – OEM belt lasts longer than many aftermarket options; it’s reinforced for high-torque tilling.
• Installation difficulty – Moderate. You’ll need to remove the belt cover, loosen the tension pulley, and route the belt around the engine pulley and tine drive pulley. A diagram helps.
• Common gotcha – If the tiller vibrates or doesn’t engage properly after replacement, the belt may be misrouted or the tension pulley spring is weak. Check the spring and pulley alignment.
• Measurement – 1/2" x 25-1/2" is the exact size. Using a slightly different belt can cause slipping or premature wear.

Should You Buy It

Buy this if you have a compatible Troy-Bilt roto-tiller and want a direct OEM replacement with reliable fit and durability. It’s a good value for the price, especially if you’re replacing a worn or broken drive belt. Skip if you’re looking for a cheaper generic or need a belt for a different brand or model.