If you already know your original PTO clutch number, browse the Toro PTO clutch collection to find the matching replacement.
If you only know your mower model, use the model and serial-number table below. The Toro TimeCutter SS5000 used more than one PTO clutch during production, so do not order by the SS5000 name or 50-inch deck size alone.
Quick Answer: Toro TimeCutter SS5000 PTO Clutch
The correct PTO clutch depends on the mower’s full model number and serial range:
| Toro Model | Serial Range | Original PTO Clutch Path |
|---|---|---|
| 74630 | 311000001–312999999 | 110-6766 |
| 74631 | 313000001–314999999 | 110-6766 |
| 74637 | 314000001 and higher | 127-3408 / Warner 5219-172 |
| 74730 | 315000001 and higher | 127-3408 / Warner 5219-172 |
| 74731 | Confirmed on 400000000 and higher | 127-3408 / Warner 5219-172 |
Fitment note: If your mower’s full model number and serial range exactly match a row above, use the clutch path shown in that row. Do not order by the broader TimeCutter SS5000 name alone because different production ranges use different PTO clutches. For an unlisted serial range, confirm the clutch number in the model- and serial-specific Toro parts diagram.
Toro 127-3408 PTO Clutch Path
Select later Toro TimeCutter SS5000 models use the Toro 127-3408 PTO clutch replacement, which cross-references Warner 5219-172.
- Toro OEM Part Number: 127-3408
- Warner Reference: 5219-172
- Crankshaft Bore: 1 inch
- Pulley Diameter: 5.8 inches
- Rotation: CCW from pulley side
- Connector Style: integral connector
Confirmed SS5000 model paths include:
- Toro 74637: serial number 314000001 and higher
- Toro 74730: serial number 315000001 and higher
- Toro 74731: confirmed on serial number 400000000 and higher
View the Toro 127-3408 / Warner 5219-172 PTO clutch replacement.
Toro 110-6766 PTO Clutch Path
Earlier Toro TimeCutter SS5000 production uses the separate 110-6766 PTO clutch path.
Confirmed SS5000 model paths include:
- Toro 74630: serial numbers 311000001–312999999
- Toro 74631: serial numbers 313000001–314999999
Do not substitute 110-6766 for 127-3408 based only on the 1-inch bore, rotation, or mower appearance. These are separate Toro part-number paths with different pulley and production configurations.
View the Toro 110-6766 PTO clutch replacement.
Common Toro TimeCutter SS5000 Deck Parts
The PTO clutch works with the deck belt, spindle assemblies, blades, and idler pulleys. Common 50-inch SS5000 replacement paths include:
- Deck Belt: 119-8820
- Spindle Assembly: 121-0751 or current replacement path 139-3214
- Spindle Shaft: 117-7268
- High-Lift Blades: 115-5059-03
- Blade Kit: 79016P
- Drive Belt: 119-3321 on select configurations
Deck parts can also change by model and serial range. Confirm each part in the exact Toro diagram before ordering, especially idler pulleys and spindle assemblies.
Common Signs of PTO Clutch or Deck Failure
- Blades will not engage when the PTO switch is activated
- Intermittent or weak blade engagement
- Blades engage when cold and stop after the mower heats up
- Burning smell or excessive clutch heat
- Deck belt squealing, slipping, or smoking
- Grinding or bearing noise
- Loss of cutting power in thick grass
- Uneven or poor cut quality
A worn belt, seized idler, dragging spindle, damaged wiring connection, or weak battery voltage can produce symptoms similar to PTO clutch failure. Inspect the complete deck-drive system before replacing parts.
How to Confirm Fitment
Start with the full mower model number and serial number shown on the Toro identification tag, typically located on the frame near or below the seat.
Use that information to open the exact model- and serial-specific Toro parts diagram. The diagram should identify either the 110-6766 path or the 127-3408 path.
If the original clutch identification number is still readable, match that number directly before ordering.
Related Toro TimeCutter Guides
- Toro TimeCutter SS5060 PTO clutch and deck parts guide
- Toro TimeCutter Z5000 PTO clutch and deck parts guide
- Toro TimeCutter Z5020 PTO clutch and deck parts guide
Need Help Confirming Fitment?
Still not sure which PTO clutch fits your Toro TimeCutter SS5000? Contact us for fitment help and send a clear picture of the mower identification tag or the original PTO clutch identification tag.