120-3335 Deck Belt for Exmark Commercial 30, Toro TurfMaster & Toro TimeMaster 30-Inch Mower Decks

Overview

This 120-3335 deck belt replacement is built for select Exmark Commercial 30, Toro TurfMaster, and Toro TimeMaster 30-inch mower deck applications using the 120-3335 belt path.

This belt is commonly associated with select Exmark S-Series and X-Series 30-inch commercial mower applications, plus select Toro TurfMaster, TurfMaster HDX, and TimeMaster 30-inch mower applications. Match your original belt number first, then confirm belt width, belt length, mower model, serial range, deck size, and belt routing before ordering.

Important: This 30-inch mower belt path is serial-range specific. Do not order by deck size or mower family alone. The strongest confirmation is the original belt number from your mower, parts diagram, or belt routing decal.

Key Features

• Replacement deck belt for select Exmark and Toro 30-inch mower deck applications
• Primary Part Number: 120-3335
• Quantity Included: 1 replacement deck belt
• Length: 44 inches
• Width: 3/4 inch
• Designed for mower deck drive systems using the listed OEM belt path
• Ships as one belt only

Compatible Brands & Model Series

This belt is intended for select Exmark and Toro 30-inch mower deck applications using the 120-3335 replacement belt path.

Common supplier application paths include:

• Exmark Commercial 30: select ECKA30, ECS180CKA30000, ECX180CKA30000, ECX180GKA30000, ECX200CKC30000, ECX200GKC30000, and ECX200GKC300CS applications using the listed serial ranges
• Toro TurfMaster: select 22200, 22205, 22207, and 22210 30-inch TurfMaster applications using the listed serial ranges
• Toro TurfMaster HDX: select 22215 30-inch TurfMaster HDX applications using the listed serial ranges
• Toro TimeMaster: select 20199, 20200, 20975, 20976, 20977, and 20978 30-inch TimeMaster applications using the listed serial ranges

Serial range note: Many Exmark Commercial 30 and Toro 30-inch mower applications use serial-number breaks. Confirm your exact mower model, serial range, original belt number, and belt routing before ordering.

Fitment note: Model names and deck sizes are provided as fitment clues only. Always confirm your original belt number is 120-3335, then verify belt size, mower model, serial range, and routing before ordering.

Replaces Common Deck Belt Numbers

• Exmark: 120-3335
• Toro: 120-3335

No-Dash Search Aliases

• 1203335

Belt Specifications

• Part Type: mower deck belt
• Primary Replacement Number: 120-3335
• Length: 44 inches / 1117.6 mm
• Width: 3/4 inch / 19 mm
• Quantity Included: 1 replacement deck belt

Before Ordering

Before ordering this deck belt, confirm:

• Your original belt number matches 120-3335
• Your mower deck uses the correct belt routing
• Your mower model and serial range match the listed application path
• Your mower uses the 30-inch deck belt path listed for this part number
• Your idler pulleys, spindle pulleys, belt guides, and tension spring are in good condition
• Your original belt length and width match the listed specifications

Do not install the belt until fitment is confirmed. Installed belts may not be eligible for return.

Common Symptoms of a Worn Deck Belt

• Deck belt slips under load
• Belt squeals when the blades are engaged
• Mower leaves uneven or uncut grass
• Belt jumps off the pulley system
• Visible cracking, glazing, or fraying
• Deck vibration or poor blade speed
• Burning rubber smell near the mower deck

Installation Notes

• Park the mower on a level surface and disconnect the spark plug before working on the deck
• Take a photo of the belt routing before removing the old belt
• Inspect idler pulleys, spindle pulleys, belt keepers, and the tension spring before installing the new belt
• Make sure the belt is seated fully in each pulley groove
• After installation, test the mower at low speed and listen for belt tracking issues, squealing, or vibration

Why Buy From PTO Direct USA?

• Fast USA shipping
• Fitment-first product descriptions
• Clear part-number routing for mower deck repairs
• Deck parts organized by belts, blades, spindles, pulleys, and rebuild kits
• Support for homeowners, repair shops, and mower owners

Need Help Confirming Fitment?

If you are unsure whether this belt fits your mower, send us your mower model number, serial number, original belt number, and photos of your belt routing diagram, mower ID tag, and old belt before ordering.

FAQ

What does this deck belt replace?

This belt replaces 120-3335 on select Exmark Commercial 30, Toro TurfMaster, Toro TurfMaster HDX, and Toro TimeMaster 30-inch mower applications using the same belt path.

What size is this belt?

This belt is listed at 44 inches long and 3/4 inch wide. Always compare the belt size and routing to your original belt before ordering.

Does this belt fit Exmark Commercial 30 mowers?

This belt is commonly listed for select Exmark Commercial 30 S-Series and X-Series mower applications using the 120-3335 belt path. Confirm your exact model number and serial range before ordering.

Does this belt fit Toro TurfMaster or TimeMaster 30-inch mowers?

This belt is commonly listed for select Toro TurfMaster, TurfMaster HDX, and TimeMaster 30-inch mower applications using the 120-3335 belt path. Many of these applications are serial-range specific, so confirm your mower model and serial number before ordering.

Can I order this belt by deck size only?

No. Deck size is only a starting point. Match the original belt number, belt size, mower model, serial range, and belt routing before ordering.

Why does my deck belt keep coming off?

A deck belt may come off because of worn idler pulleys, bad spindle bearings, weak tension springs, bent belt guides, incorrect routing, or the wrong belt size. Inspect the full deck drive system before installing a new belt.

Need other deck parts for this setup? Browse mower blades, spindle assemblies, deck pulleys and idlers, and deck rebuild kits.

Need a different belt? Browse the full mower deck belts collection.