Lawn Mower Cogged Pump Belt 1/2" x 64" for Toro 119-3321, Exmark 119-3321, TimeCutter ZS5000, SS5000, SS5060 and MX5060

What It Is

This is a cogged pump belt (1/2" wide, 64" long) designed to drive the hydrostatic pump on select Toro TimeCutter zero-turn mowers. It replaces OEM parts 119-3321 and Exmark 119-3321.

Fitment & Compatibility

Before buying, verify these three things:

• Model/Deck Size: Fits Toro TimeCutter ZS5000, SS5000, SS5060, and MX5060 models. Not for ZS4200, SS4200, or older TimeCutter series.
• OEM Cross-Reference: Direct replacement for Toro/Exmark part #119-3321. Aftermarket belt is identical in dimensions and construction.
• Measurements: Belt is exactly 1/2" wide (not 5/8") and 64" outer circumference. Measure your old belt if unsure – a 1/16" width or 1" length difference means it won’t fit.

Key Things to Know

• Quality: Aftermarket belt matches OEM grade; cogged design reduces heat buildup and flex fatigue compared to flat belts.
• Installation: Moderate difficulty – requires removing the deck and possibly the mower’s rear shield to access pump pulley. No special tools needed, but a belt tensioner tool helps.
• Common Gotchas: The belt runs between the engine and pump pulleys only – it does not drive the deck. If your mower won’t move but blades spin, this belt is likely the issue. Check pulley alignment before installation; a bent pulley will shred a new belt quickly.
• Lifespan: Expect 200-400 hours of use depending on debris exposure and tension. Replace as a pair if your mower has two pumps.

Should You Buy It

Yes, if you own a compatible Toro TimeCutter and need a reliable, direct-fit replacement for the OEM pump belt. It’s priced well below dealer parts, has excellent reviews, and eliminates the guesswork of generic belts. Skip it if your mower isn’t on the fitment list or if you suspect pulley damage instead of belt wear.