Karbay 2 Pack 120-7082 Idler Pulley Compatible with Toro 30" Time Master & Turf-Masters for Exmark Commercial 30 Walk-Behind- 2-1/4 Inch Flat Dia Flat Idler Pulley

What It Is

This is a pack of two aftermarket flat idler pulleys (2-1/4 inch outer diameter) designed to guide and tension the drive belt on Toro 30-inch TimeMaster and TurfMaster mowers, as well as Exmark Commercial 30 walk-behinds. They replace the OEM Toro part 120-7082 and keep the belt properly aligned to prevent slipping or premature wear.

Fitment & Compatibility

Before buying, confirm your mower model and deck size. This pulley is specifically for 30-inch decks on:

• Toro TimeMaster (model 21199, 21200, 21201, 21202)
• Toro TurfMaster (model 22185, 22186, 22187)
• Exmark Commercial 30 (model CA30, CB30, CC30)

Check these details:

• Measure the old pulley: Must be 2-1/4 inches flat outer diameter with a 5/8-inch bore (center hole). If your pulley has a bearing shield or is a different diameter, this won’t fit.
• OEM cross-reference: Replaces Toro 120-7082, 120-7082A, and Exmark 120-7082. If your mower uses a different OEM number, stop here.
• Visual check: The pulley has a flat face (no groove). If your belt runs in a V-groove, you need a grooved pulley instead.

Key Things to Know

• Quality: These are aftermarket steel pulleys with sealed bearings. They’re generally durable but may have slightly less precision than OEM. Expect ~2-3 seasons of use under normal residential conditions.
• Installation difficulty: Easy (15-30 minutes). You’ll need a socket wrench, a 5/8-inch socket, and possibly a pry bar to relieve belt tension. No special tools required.
• Common gotchas: The included bolts may be too short for some decks—reuse your original hardware if needed. Also, the bearings are pre-lubricated and sealed, so don’t add grease.
• Pack of two: Useful if you need to replace both idlers at once (common on TimeMasters with two idlers). If only one is worn, you’ll have a spare.

Should You Buy It

If you own a Toro 30-inch TimeMaster/TurfMaster or Exmark 30 walk-behind and need a budget-friendly replacement for a worn or noisy idler pulley, this two-pack is a solid value. It’s not as premium as OEM but works fine for residential use. Avoid if you need a grooved pulley, a different bore size, or if your mower is a commercial zero-turn with higher RPM demands.