Overview
If you're comparing AUC15791 and AM136115, you're likely working on a John Deere ZTrak mower where fitment can change based on serial number range.
These PTO clutch paths are commonly confused because some John Deere mower families transitioned from AM136115 to AUC15791 during production. As a result, buyers often find conflicting information online.
The safest way to identify the correct replacement is to match the original PTO clutch number first and then verify your mower serial number and physical specifications.
AUC15791 PTO Clutch Route
The AUC15791 PTO clutch is commonly associated with later-production John Deere Z300 Series ZTrak applications.
Many Z355E, Z355R, Z345M, Z345R, and Z365R applications use this clutch path when the original PTO clutch number matches.
Shop the AUC15791 PTO Clutch Replacement
Related guide: AUC15791 PTO Clutch Cross-Reference Guide
AM136115 PTO Clutch Route
The AM136115 PTO clutch is commonly associated with earlier John Deere mower applications and appears on certain ZTrak and EZtrak platforms.
Some mower families that later transitioned to AUC15791 may still use AM136115 depending on production date and serial range.
Shop the AM136115 PTO Clutch Replacement
Related guide: AM136115 PTO Clutch Cross-Reference Guide
Why Buyers Confuse These PTO Clutches
The most common confusion occurs on John Deere Z355E and related ZTrak platforms.
Some production ranges use AM136115 while later production ranges use AUC15791. Buyers searching by mower model alone can easily end up on the wrong clutch path.
This is why PTO Direct USA recommends matching the original PTO clutch number whenever possible.
Buy the Correct PTO Clutch Replacement
If your original PTO clutch is marked AUC15791 or AM136115, start by matching that OEM number first. Then verify key specifications before ordering.
Shop the AUC15791 PTO Clutch Replacement
Shop the AM136115 PTO Clutch Replacement
Common Serial Number Split Example
One of the most commonly reported examples involves the John Deere Z355E.
- Earlier production units: commonly associated with AM136115
- Later production units: commonly associated with AUC15791
Always verify the original PTO clutch number and serial number before ordering.
Important Fitment Check
Do not order by mower model alone.
Before ordering, verify:
- Original PTO clutch number
- Mower serial number
- Crankshaft bore size
- Pulley diameter
- Connector style
- Anti-rotation setup
- Deck belt routing
Related PTO Clutch Pages
- AUC15791 PTO Clutch Replacement
- AM136115 PTO Clutch Replacement
- AUC15791 PTO Clutch Cross-Reference Guide
- AM136115 PTO Clutch Cross-Reference Guide
- AM141536 vs AUC15791 PTO Clutch Guide
- John Deere PTO Clutches
FAQ
Is AUC15791 the same as AM136115?
No. These are separate PTO clutch paths and should not be treated as interchangeable without verifying fitment.
Where can I buy an AUC15791 PTO clutch?
Shop the AUC15791 PTO Clutch Replacement.
Where can I buy an AM136115 PTO clutch?
Shop the AM136115 PTO Clutch Replacement.
Does the John Deere Z355E use AUC15791 or AM136115?
It can depend on serial number range and production date. Always verify the original PTO clutch number before ordering.
What is the safest way to identify the correct replacement?
Match the OEM number stamped on the original PTO clutch first, then confirm the serial number and physical specifications.
Need help confirming fitment? Contact PTO Direct USA with your original PTO clutch number and mower serial number before ordering.