121-5765 Drive Belt fits Toro Timemaster Turfmaster Mower 30" Deck 20199 20200

What It Is

The 121-5765 drive belt transfers engine power to the blade spindle on Toro Timemaster and Turfmaster mowers with a 30-inch deck. It’s designed for residential/commercial models that use a single-belt system to drive both blades.

Fitment & Compatibility

Check before buying:

• Deck size: Only fits 30-inch deck models. Will not work on 22-inch or 34-inch decks.
• Model numbers: Confirmed compatible with Toro Timemaster 20199 (2013–2016) and 20200 (2017–2021) models. Also fits Turfmaster 20333 and 20334.
• OEM vs aftermarket: This is a genuine Toro belt. Aftermarket alternatives may have slightly different lengths or wear faster—verify exact 121-5765 cross-reference numbers if buying non-OEM.
• Measurements: Belt is 3/8-inch wide, 94.5 inches long (outside circumference). Measure your old belt to confirm.

Pro tip: Inspect the belt guides and pulleys for wear before installing—a damaged pulley will shred a new belt quickly.

Key Things to Know

• Quality: Toro OEM belts are Kevlar-reinforced and handle high torque well. They last 2–3 seasons under normal use.
• Installation difficulty: Moderate. You’ll need to remove the deck, release the tension spring, and route the belt around the blade pulleys and engine pulley. A diagram helps.
• Common gotcha: The belt must be routed with the ribs facing the pulleys. Installing it backwards causes slippage and rapid wear.
• Lubrication: None needed. Keep pulleys clean and dry.

Should You Buy It

Buy this belt if you own a Toro Timemaster or Turfmaster with a 30-inch deck and need a direct OEM replacement. It’s a fair price for genuine Toro quality, and the fit is guaranteed. If you’re on a strict budget, an aftermarket belt might work, but expect shorter life and possible fit issues.