110-6774 Lawn Tractor Cogged Pump Belt 1/2" x 62 1/2" for Toro TimeCutter Z4200 Z4220 Z4235 Z5000 Z5020 Z5030 Z5035 Z5040 Z5060 74360 74363 74365 74366

What It Is

This is a cogged pump belt (1/2" wide x 62 1/2" long) that drives the hydrostatic pump on Toro TimeCutter zero-turn mowers. It’s specific to models like the Z4200, Z4220, Z4235, Z5000, Z5020, Z5030, Z5035, Z5040, and Z5060, as well as deck part numbers 74360, 74363, 74365, and 74366. Without it, the mower won’t move.

Fitment & Compatibility

• Check your model number: This belt fits Toro TimeCutter Z-series mowers listed above (e.g., Z4200, Z5000). It does NOT fit older Z-masters or other brands.
• Verify deck part number: If your deck has a 74360, 74363, 74365, or 74366 tag, this belt is compatible.
• Measure before buying: The belt is exactly 1/2" wide and 62 1/2" long (outside circumference). Use a string or old belt to confirm your current one matches these specs.
• OEM vs aftermarket: This is a genuine Toro part (OEM #110-6774). Aftermarket belts may be cheaper but often wear faster or slip on the cogged pulley. Stick with OEM for reliable fit.

Key Things to Know

• Quality: Cogged design reduces heat buildup and flex fatigue, lasting longer than a plain V-belt in hydrostatic applications.
• Installation difficulty: Moderate. You’ll need to remove the deck and possibly the left-side pulley guard. A belt tensioner tool (or a long screwdriver) helps release tension.
• Common gotcha: Don’t overtighten—the belt should have about 1/2" of deflection when pressed. Too tight can damage pump bearings; too loose causes slipping.
• Check pulleys: Worn or rusty pulleys will shred this belt quickly. Inspect them for nicks or grooves before installing.

Should You Buy It

If you own a Toro TimeCutter Z4200–Z5060 and need a reliable, direct-fit pump belt, this is the right buy. It’s priced fairly for OEM quality and matches the original exactly. Avoid it if you have a different model or want a cheaper aftermarket alternative—stick with this for longevity.