121-5765 Drive Belt fits Toro Timemaster Turfmaster Mower 30" Deck 20199 20200 (2 Pack)

What It Is

This is a replacement drive belt (OEM part 121-5765) for Toro TimeMaster and TurfMaster mowers with a 30-inch deck. It transfers power from the engine to the blade spindle and self-propel system, sold here as a two-pack for convenience.

Fitment & Compatibility

• Exact fit: Toro TimeMaster 30" models 20199 (2015-2017) and 20200 (2016-2018). Also fits TurfMaster 30" models 30070, 30071, 30072, 30073, 30074 (2015-2018).
• Check deck size: Must be a 30-inch deck—not compatible with 21", 22", or 42" models.
• OEM vs aftermarket: This is a genuine Toro belt, not an aftermarket substitute. Match the part number 121-5765 on your old belt before buying.
• Physical specs: 1/2" width, 93.5" outside length, K-section cogged design. Measure your old belt to confirm if you have a non-standard replacement.

Key Things to Know

• Quality: OEM Toro belts are reinforced with Kevlar and resist stretching better than generic belts. Expect 2-3 seasons with regular use.
• Installation difficulty: Moderate—requires removing the deck belt cover and belt tensioner pulley. A socket set and belt tension tool are helpful.
• Common gotcha: The belt routing is specific; take a photo before removing the old one. Wrong routing causes slipping or blade disengagement.
• Two-pack value: Buying as a pair saves ~15% vs single belts. Keep the spare for quick swaps when the first wears out mid-season.

Should You Buy It

If you own a Toro TimeMaster or TurfMaster with a 30" deck, this is the correct OEM belt. The two-pack is a smart buy for owners who mow frequently or want a backup ready for peak season. Avoid if you need a belt for a different deck size or brand.