Name: 110-6766 PTO Clutch Replacement for Toro Exmark | Replaces 103-9950, 5219-81 & more
Brand: PTO Direct USA
SKU: PTO-110-6766
Price: 169.95 USD
Availability: InStock

110-6766 PTO Clutch Replacement for Toro Exmark | Replaces 103-9950, 5219-81 & more

$169.95

110-6766 PTO Clutch Replacement for Toro Exmark | Replaces 103-9950, 5219-81 & more

$169.95

Overview

This Toro Exmark PTO clutch 110-6766 replacement also replaces OEM part numbers 103-9950, 100-6059, 108-9510, 108-9511, and 107-1733. It is built for select Toro TimeCutter and Titan zero-turn mowers, along with select Exmark Quest models using the same 1-inch bore, 5.8-inch pulley, CCW electric PTO clutch specification.

Commonly used on Toro TimeCutter 50-inch deck models, Toro Titan 48-inch and 52-inch deck models, and Exmark Quest 48-inch, 50-inch, and 52-inch deck applications, this electric PTO clutch helps restore smooth blade engagement, proper belt tension, and reliable mower deck performance.

Built with a 5.8-inch pulley diameter, commonly listed as 5-13/16 inches, a 1-inch crankshaft bore, CCW rotation, 125 ft-lb torque rating, and an integral wire connector, this clutch should be matched against the OEM number, pulley size, bore size, rotation, connector style, and original clutch configuration before ordering.

Key Features

Direct replacement electric PTO clutch assembly for select Toro and Exmark zero-turn mower applications
Pulley Diameter: 5.8" | 5-13/16"
Crankshaft Size: 1"
Rotation: CCW (counter-clockwise)
Voltage: 12V DC
Torque Rating: 125 ft-lbs
Belt Width Compatibility: 1/2" or 5/8" A/B belt profile
Connector Style: integral connector
Designed to maintain proper Toro / Exmark deck belt geometry and blade speed
Fully assembled and ready to install after fitment verification

Compatible With These Brands & Model Series

This PTO clutch fits select Toro and Exmark zero-turn mower platforms using OEM part number 110-6766 or related Toro / Exmark replacement numbers.

Toro TimeCutter Series

TimeCutter SS5000: 50" deck applications
TimeCutter SS5060: 50" deck applications
TimeCutter ZS5000: 50" deck applications
TimeCutter Z Series: Z5020, Z5030, Z5035, Z5040, and Z5060 50" deck applications
TimeCutter G4000: select early 50" deck applications using this clutch family

Toro Titan Series

Titan Z4800: 48" deck applications
Titan Z5200: 52" deck applications
Titan ZX5000: 50" deck applications
Titan ZX5020: 50" deck applications

Exmark Quest Series

Quest QST22BE482: 48" deck, serial 670000–919999
Quest QST24BE522: 52" deck, serial 670000–919999
Quest QT24KA501: 50" deck, serial 920000–999999
Quest E-Series QTE691KA501: 50" deck, serial 313000000–313999999
Quest 48" and 52" models: commonly listed for serial 790000 and up when using the 110-6766 clutch family

Fitment can vary by model, deck size, serial range, engine package, crankshaft size, wiring connector, and original clutch specification. Always confirm your original clutch number before ordering.

Model & Serial Range Notes

Toro TimeCutter 50" models: commonly associated with SS5000, SS5060, ZS5000, Z5020, Z5030, Z5035, Z5040, and Z5060 applications
Toro Titan models: commonly associated with Z4800, Z5200, ZX5000, and ZX5020 applications
Exmark Quest QST22BE482: 48" deck, serial 670000–919999
Exmark Quest QST24BE522: 52" deck, serial 670000–919999
Exmark Quest QT24KA501: 50" deck, serial 920000–999999
Exmark Quest E-Series QTE691KA501: 50" deck, serial 313000000–313999999

Fitment note: This clutch is not for every Toro TimeCutter, Toro Titan, or Exmark Quest model. Some 42-inch deck models and some engine packages use different PTO clutches. Match the OEM number on your original clutch whenever possible.

Replaces OEM Part Numbers

Toro / Exmark: 110-6766, 103-9950, 100-6059, 108-9510, 108-9511, 107-1733

Manufacturer & Aftermarket Cross-Reference Numbers

Warner Electric: 5219-81, 5219-57
STENS: 255-823
Xtreme: X0379

Common search variations: Toro 1106766, Exmark 1106766, Warner 521981, Warner 521957, Stens 255823.

Fitment Notes

This listing is for the Toro / Exmark 110-6766 clutch family with a 1-inch crankshaft bore, 5.8-inch / 5-13/16-inch pulley, CCW rotation, and 125 ft-lb torque rating.

If your original clutch is marked Ariens / Gravely 00191700 or Warner 5219-45, use the dedicated Ariens / Gravely listing instead. That clutch family uses a 6.00" pulley and should not be mixed into this Toro / Exmark page.

Looking for the Ariens / Gravely version? See our Ariens Gravely 00191700 / Warner 5219-45 PTO clutch replacement.

Other related clutch families: MTD / Cub Cadet 717-04214, 917-04214, 717-04526, 917-04526, John Deere AM138234, Wright 71410006, and Great Dane GDA10017 are commonly grouped with similar-looking PTO clutches online, but they may use different pulley diameters, torque ratings, connector styles, or wiring layouts. These should be verified separately before ordering.

What’s Included

Complete electric PTO clutch assembly
Factory-balanced 5.8" / 5-13/16" pulley
Pre-installed bearing assembly
Electromagnetic coil
Integral wire connector

Note: Central mounting bolt, washers, clutch stop bracket, arbor stop, and anti-rotation hardware are not included. Reuse and inspect your original OEM hardware where required.

How to Confirm Fitment

The most reliable way to confirm compatibility is to match the OEM or Warner part number stamped on your original PTO clutch. If the number is worn or unreadable, use model data then carefully compare the 5.8-inch / 5-13/16-inch pulley diameter, 1-inch crankshaft bore, CCW rotation, integral connector style, and anti-rotation bracket setup before installation.

A matching mower model name alone does not guarantee fitment. Similar Toro and Exmark machines can use different PTO clutch families depending on deck size, engine package, serial range, crankshaft size, wiring style, and chassis design.