1/2" x 117 1/4" Lawn Mower Deck Belt Fits for MTD 754-0197 954-0197 754-06134; for Toro 106-2173; for Simplicity 1719911SM, Fits for 900 Series with 50" Decks 74301 74325; for TimeCutter with 42" Deck

What It Is

This is a 1/2" wide by 117 1/4" long V-belt designed to drive the cutting blades on select zero-turn and lawn tractors. It’s commonly used on 50" MTD 900 Series decks (models 74301, 74325) and 42" Toro TimeCutter decks, as well as some Simplicity models with 50" decks.

Fitment & Compatibility

Before buying, confirm three things: deck size, model number, and OEM cross-reference. This belt fits decks labeled 50" for 900 Series MTD/Toro/Simplicity, and 42" for Toro TimeCutter. It replaces OEM numbers: MTD 754-0197, 954-0197, 754-06134; Toro 106-2173; Simplicity 1719911SM. Critical: Measure your old belt length (117 1/4") and width (1/2"). If your deck is a different size or your belt measures differently, this won’t work. Cross-check your mower’s model number against the OEM list—don’t rely solely on deck size.

Key Things to Know

• Not all 50" or 42" decks are the same – This belt is specific to the models listed. A different 50" deck from the same brand may use a different belt length.
• Installation difficulty is moderate – You’ll need to relieve belt tension (spring-loaded idler pulley) and route around all pulleys. Take a photo before removing the old belt.
• Aftermarket quality varies – This is an aftermarket belt, not OEM Toro. Check reviews for durability; some users report shorter lifespan compared to OEM.
• Check pulley condition – Worn or rough pulleys will shred a new belt quickly. Replace any damaged pulleys at the same time.

Should You Buy It

If you own one of the listed MTD 900 Series, Toro TimeCutter, or Simplicity models with the exact deck size and OEM numbers, this belt is a solid, affordable replacement. It’s not for generic or mismatched decks—verify fitment first. For users who want OEM reliability and are willing to pay more, stick with a Toro or MTD branded belt.