HRepair Mower Idler Pulley Kit & 44 in x 3/4 in Belt for Toro TimeMaster 30in — restores tension and reduces noise

HRepair 131-4529 mower idler pulley kit with the 120-3335 replacement belt is a direct-fit repair set for Toro TimeMaster 30" and several TurfMaster and Exmark models—designed to restore proper belt tracking and deck engagement.

If your Toro TimeMaster or compatible TurfMaster/Exmark lawn mower is showing belt slip, squeal, or uneven deck movement, this HRepair kit bundles the correct idler pulley and the 44" x 3/4" replacement belt to get blades and drive systems running smoothly again. The kit matches multiple Toro part numbers and includes pulley dimensions that fit the specified mower frames, making it a convenient single-purchase fix instead of sourcing parts separately.

Which Toro and other mower models will this kit fit?

This kit is engineered to replace specific Toro idler pulley and belt assemblies across several TimeMaster and TurfMaster models, plus select Exmark models. Use the listed compatible model numbers to confirm fit before purchase.

• Compatible Toro TimeMaster 30" models: 20199, 20200, 21199, 2199HD, 21200
• Compatible Toro 76cm models: 20975, 20976, 20977, 20978, 21810, 21811
• Fits Toro TurfMaster 30" and 76cm series and HDX variants: 22200, 22210, 22205TE, 22207, 22215, 22225
• Also fits select Exmark models: ECS180 CKA30000, ECKA30

What are the key dimensions and part replacements included?

The pulley and belt arrive ready to swap into original locations: pulley hole sizes and physical profile match factory geometry while the belt uses the same length and width as the Toro reference part. Knowing the specs helps verify compatibility with your mower’s mounting and routing.

• Pulley length: 2 3/4" and height: 1" for proper deck clearance
• Pulley bore: outer diameter 1.4" with inner diameter 0.7" for correct axle fit
• Belt: Toro direct replacement 120-3335 (44" length × 3/4" width)
• Replaces Toro pulley PN variants: 121-5763, 125-2532, 126-0316, 131-4506, 131-4509

How will installing this kit affect mower performance?

Replacing worn idler pulleys and a stretched or cracked belt restores tension, reduces noise, and improves blade engagement consistency. Properly routed and tensioned belts also reduce wear on spindles and drive components, extending overall deck life.

• Restores consistent belt tension to prevent slipping under load
• Reduces squeal and vibration caused by worn pulley bearings
• Improves deck speed stability for more even cutting results
• Helps avoid secondary damage to spindles and gearboxes

What warranty, support, and return options come with this purchase?

HRepair backs this kit with a lifetime free replacement policy for qualifying defects and provides 24/7 expert support for installation questions. There’s also a 90-day hassle-free return window if the parts don’t match your mower or you change your mind.

• Lifetime replacement for covered manufacturing defects
• 24/7 access to technical support for part fitment and routing help
• 90-day simple returns policy for peace of mind

Who is this for: This HRepair idler pulley and belt kit is aimed at homeowners and small-property maintenance pros who own Toro TimeMaster, TurfMaster, or compatible Exmark mowers and want an OEM-equivalent single-kit solution. It suits anyone comfortable doing mid-level mower maintenance—removing decks, routing belts, and replacing pulleys—or service shops that need a reliable replacement part to fix belt-related problems quickly.