Toro TimeMaster 30″ / 76cm – Full 3-Belt Set Kit

Complete replacement three-belt kit for the Toro TimeMaster 30 inch (76cm) twin-blade walk-behind mower. It contains every belt on the machine: the deck drive V-belt, the traction (self-propel) V-belt, and the toothed deck timing belt that keeps the two blades in phase. Because all three run off the same pulley stack behind the same covers, doing them together is one teardown instead of three.

Please check before ordering: This kit is for the TimeMaster only. It does NOT fit the TurfMaster.

The commercial TurfMaster 30″ models (22200, 22205TE, 22207, 22210, 22215, 22225, 22235) share the deck belt and the timing belt, but use a different traction belt – Toro 116-7116. Fitting this kit to a TurfMaster leaves you with the wrong self-propel belt. Any earlier reference to TurfMaster on this listing was incorrect and has been removed.

The eTimeMaster 60V battery models (21491, 21491T, 21493, 21876, 21876T) share only the traction belt – the battery deck drives differently, so this kit is not for them either.

If you are unsure, send us your model number and serial number and we will confirm it before we ship.
What's In The Kit
1 x Deck drive V-beltToro 121-5765 – 1/2″ x 30.1″. Runs from the engine crankshaft pulley to the deck input pulley. This is the belt your blade-engage (PTO) lever tensions.
1 x Traction V-beltToro 120-9470 – 3/8″ x 27.5″. Engine crankshaft pulley to transmission pulley. This is what drives Personal Pace self-propel.
1 x Deck timing beltToro 120-3335 – 44″ x 3/4″, toothed / synchronous. Sits inside the deck and links the two blade spindles so the twin blades stay in phase and cannot collide.
Part Numbers
Deck drive V-belt121-5765 (Stens 266-285)
Traction V-belt120-9470 (Stens 265-566)
Deck timing belt120-3335 (Stens 265-610, 8TEN 810-CBL2401T)
Exmark equivalents121-5765-SL · 120-3335-SL
SupersessionsNone – all three numbers are current
Quantity supplied3 belts – one complete set
NOT included in this kit116-7116 (TurfMaster traction belt) · belt guides 120-5245-03 and 139-1734
Fits These Models
2019920200209752097620977209782119921199HD21200212192122021810218112181521816

Brands: Toro. Toro sold the TimeMaster as TM76 (21810) and TM76K (21811) in some markets. If your model is not listed, send us your full model and serial number and we will check it for you.

Symptoms This Kit Fixes
Blades will not engage, or stop under loadDeck drive belt (121-5765). The highest-wear belt of the three, because the PTO lever slips it against a tensioned idler every single time you engage the blades.
Blades bog down or slow in thick grassDeck drive belt slipping rather than gripping.
Loud squeal when you engage the bladesClassic glazed or worn deck drive belt.
Self-drive slipping or weakTraction belt (120-9470), usually stretched. Often misdiagnosed as a Personal Pace cable or transmission fault – check the belt first, it is far cheaper.
Mower will not pull itself up a slopeTraction belt slipping under load.
One blade stops or lags while the other turnsTiming belt (120-3335) has stripped teeth. Because it is toothed it does not slip and squeal – it fails abruptly.
Clacking or knocking from inside the deckBlades out of phase. Stop using the mower and check the timing belt.
Shiny, glazed, cracked or frayed beltVisible on inspection once the belt cover is off. Replace before it snaps mid-job.
Specifications
Kit contents3 belts – deck drive, traction, deck timing
Deck drive belt1/2 inch x 30.1 inch V-belt
Traction belt3/8 inch x 27.5 inch V-belt
Timing belt44 inch x 3/4 inch toothed / synchronous
Suits cut width30 inch / 76cm twin blade
Machine typeToro TimeMaster walk-behind, petrol
ConditionNew
Note on dimensionsToro does not publish belt dimensions. The measurements above come from Stens and other aftermarket catalogues and are provided as a guide.
Fitting Notes
You do not need to remove the whole deckThe two V-belts come off with the belt cover and the gear housing stop removed. Allow around 20 minutes for both.
Tip the mower the right way upToro says to tip the machine onto its side with the dipstick down and the air filter up, until the upper handle rests on the ground. Tipping it the other way floods the air filter with oil.
The timing belt needs the blades offIt sits on the spindles inside the deck behind belt guide 120-5245-03. Practically you will pull the blades and that guide to get it on.
Put the belt guides backEach belt has a guide or keeper alongside it – 120-5245-03 at the spindles, 139-1734 at the engine end. Leave one off and the new belt will walk straight off the pulley.
Set the blade-drive belt tensionToro specifies checking every 50 hours: slide a 0.25mm (0.010 inch) feeler gauge or a note card behind the belt tension spring and adjust until it slides freely. Do not overtighten – Toro warns this damages the belt.
Disconnect the spark plug leadBefore working anywhere near the blades or deck.
Why do all three at onceOnce the covers are off, the extra labour for the second and third belt is close to zero. The deck belt wears fastest and the timing belt lasts longest, so this is a labour argument rather than a wear one – but it is a good one.
Why Buy From Salin Appliance Spares
Correct part, first timeSend us your model and serial number and we will confirm fitment before you order.
Australia-wide deliveryDispatched from our Sydney warehouse to all states and territories.
Spare parts specialistsWe supply trade technicians and DIY customers across Australia every day.
Questions before you buyEmail [email protected] and we will help you identify the right part.
AIRLINK
SKU HSB_176083747574
Model # 120-3335
Brand PIX
Shipping Weight 1.0000kg