5219-45 PTO Clutch for Toro & Exmark | Replaced by 110-6766

The 5219-45 PTO clutch is part of a Warner OEM clutch group used across Toro, Exmark, Ariens, and Gravely mower platforms. This group includes multiple part numbers that share the same clutch specification.

This OEM group directly cross-references to the 110-6766 PTO clutch, which serves as the primary aftermarket replacement.

If your original PTO clutch is stamped with 5219-45 or related numbers in this group, the correct replacement is the 110-6766 PTO clutch.

Confirm full cross-reference compatibility, including the complete OEM part number cluster and supported mower models, in the 110-6766 PTO clutch fitment guide.

Replaces Part Numbers

The following part numbers belong to the same PTO clutch cross-reference group and use the same replacement platform:

Warner: 5219-81, 5219-45, 5219-34A, 5219-34, 5219-58, 5219-63, 5219-66
Toro / Exmark: 110-6766, 103-9950, 100-6059, 108-9510
Ariens / Gravely: 00191700
Replacement: 110-6766 PTO clutch

Toro Models That Use This PTO Clutch Platform

This clutch group is commonly used on Toro TimeCutter and Titan zero-turn mower platforms. Use the guides below to confirm fitment.

TimeCutter SS Series

TimeCutter Z Series

Titan Series

For broader coverage, see our Toro PTO clutch guide.

Compatible Exmark Models

This same clutch platform is also used on select Exmark zero-turn mower models.

Compatible Ariens and Gravely Models

Some Ariens and Gravely models use OEM part number 00191700 which belong to this same clutch group and cross-reference to the 110-6766 PTO clutch.

Common Signs of PTO Clutch Failure

Blades will not engage
Slipping or weak engagement
Burning smell or overheating
Squealing or grinding noise
Blades stop under load
Visible heat damage or wear

If these symptoms appear, replacing the PTO clutch will restore proper blade engagement and cutting performance.

How to Confirm Fitment

Match the OEM part number stamped on your original PTO clutch.

If your clutch is marked 5219-45, 5219-81, 5219-34A, 100-6059, 103-9950, 108-9510, or 110-6766, this replacement group is correct.

If the number is unreadable, use your mower model or contact us for fitment help.