3PCS Belts Compatible with 30" Deck Toro TimeMaster 20199 21199HD 21199 20200 20975 20976 20977 20978 21810 21200 21810 21811 for 120-3335 121-5765 120-9470 Lawn Mower Deck Drive Belt

What It Is

This is a 3-pack of replacement deck drive belts for 30-inch Toro TimeMaster mowers. It fits models including 20199, 21199, 21199HD, 20200, 20975, 20976, 20977, 20978, 21810, 21811, and 21200, and replaces OEM part numbers 120-3335, 121-5765, and 120-9470.

Fitment & Compatibility

Before buying, confirm your mower has a 30-inch deck—TimeMaster models with 22- or 24-inch decks use different belts. Check your owner’s manual or the belt part number printed on the old belt. These belts are aftermarket replacements for the listed OEM numbers; if your mower uses a different belt (e.g., 120-9470 is specific to some 20200 models), verify the cross-reference. Measure the belt length if possible: these are approximately 92.5 inches (120-3335) and 95.5 inches (121-5765). They will not fit standard 21- or 22-inch Toro mowers.

Key Things to Know

• Quality variance: At a 3.9 rating with only 6 reviews, these belts may wear faster than OEM—some users report shorter lifespan under heavy use.
• Installation is moderate: You’ll need to remove the deck, release tension from the idler pulley, and route the belt around three pulleys. A belt diagram is helpful.
• Common gotcha: The 120-9470 belt (used on some 20200 models) is shorter—double-check your model’s exact OEM part before assuming all three belts fit.
• No warranty info listed: Aftermarket belts often lack the warranty coverage of genuine Toro parts.

Should You Buy It

Buy this 3-pack if you have multiple TimeMaster mowers with a 30-inch deck or want spare belts on hand for quick swaps. Skip it if you need a single belt for heavy commercial use—spend a few dollars more for an OEM belt with a proven track record and better reliability.