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

What It Is

This is a set of two OEM-grade drive belts (part number 121-5765) designed for Toro Timemaster and Turfmaster mowers with a 30-inch cutting deck. It transfers power from the engine pulley to the blade spindle assembly, enabling the blades to spin.

Fitment & Compatibility

Before buying, confirm your mower model is on the approved list: Toro Timemaster 20199 and 20200 (30" deck) and Turfmaster models using the same deck. Measure your existing belt length—this belt is approximately 92 inches long, 1/2 inch wide, with a K-section profile. Cross-reference with OEM part 121-5765. Avoid assuming fit on older or newer Timemaster variants (e.g., 20333, 20334) without verifying belt length and deck size. Check your belt for cracks or wear; if it’s stretched or glazed, replacement is due.

Key Things to Buy

• Quality concerns: With a 3.0 rating, some users report premature wear or snapping within a season—consider stepping up to an OEM Toro belt (single, not 2-pack) for longer life if you mow heavy or frequent use.
• Installation difficulty: Moderate. You’ll need a socket set and a belt routing diagram (available online). The belt goes around the engine pulley, idler pulley, and blade spindle pulley. Tension is critical—too tight strains pulleys, too loose slips.
• Common gotcha: The 2-pack may contain belts from different production batches—check both for consistent width and length before installing. If one is slightly off, use the better one first.
• Replacement interval: Expect 1–2 seasons of normal residential use. For commercial use (Turfmaster), replace annually or at first sign of fraying.

Should You Buy It

This 2-pack is a budget-friendly option for DIY homeowners with a Toro Timemaster 30" mower who want a spare on hand. But if you mow heavy grass, have a commercial Turfmaster, or prioritize longevity over cost, buy a single OEM Toro belt instead to avoid premature failure.