Quick Answer
The John Deere X520 uses the AM141536 electric PTO clutch. The earlier AM134397 clutch supersedes to AM141536.
Shop the AM141536 PTO Clutch Replacement
The mower-deck parts depend on whether the tractor has the 48-inch or 54-inch mower deck:
- 48-inch deck: M154897 primary belt, M154958 secondary belt, and M145476 standard blades
- 54-inch deck: M154897 primary belt, M154960 secondary belt, and M143520 standard blades
Both deck paths use the M154897 primary belt, but they use different secondary belts.
John Deere X520 PTO Clutch Table
Table tip: On mobile, swipe sideways to view the full fitment table.
| Model | Deck Options | OEM PTO Clutch | PTO Direct Product | Fitment Note |
|---|---|---|---|---|
| John Deere X520 | 48-inch or 54-inch mower deck | AM141536 Supersedes AM134397 |
AM141536 PTO Clutch | Confirmed X520 PTO clutch path. Match AM141536 or the earlier AM134397 number before ordering. |
John Deere X520 Deck Parts Table
Table tip: On mobile, swipe sideways to view the full deck-parts table.
| Deck Path | Component | Quantity | OEM Part Number | PTO Direct Product | Fitment Note |
|---|---|---|---|---|---|
| 48-inch mower deck | Primary Engine-to-Deck Belt | 1 | M154897 Earlier reference M172924 |
M154897 / M172924 Primary Deck Belt | Primary belt transferring power from the PTO clutch to the mower deck. |
| 48-inch mower deck | Secondary Spindle-Drive Belt | 1 | M154958 / M110313 | M154958 / M110313 Secondary Deck Belt | Secondary belt for the 48-inch deck. Do not substitute the M154960 54-inch secondary belt. |
| 48-inch mower deck | Standard Mower Blade | 3 | M145476 | M145476 / UC22009 Mower Blades | Standard three-blade path for the 48-inch mower deck. |
| 48-inch mower deck | Mulching Blade | 3 | M127673 | Contact to inquire about product | Mulching blade option for the 48-inch mower deck. |
| 54-inch mower deck | Primary Engine-to-Deck Belt | 1 | M154897 Earlier reference M172924 |
M154897 / M172924 Primary Deck Belt | Primary belt transferring power from the PTO clutch to the mower deck. |
| 54-inch mower deck | Secondary Spindle-Drive Belt | 1 | M154960 | Contact to inquire about product | Secondary belt for the 54-inch deck. Do not substitute the M154958 48-inch secondary belt. |
| 54-inch mower deck | Standard Mower Blade | 3 | M143520 | M143520 / UC22010 Mower Blades | Standard three-blade path for the 54-inch mower deck. |
| 54-inch mower deck | Mulching Blade | 3 | M145516 | Contact to inquire about product | Mulching blade option for the 54-inch mower deck. |
Model Path Note
The John Deere X520 uses the AM141536 electric PTO clutch. The earlier AM134397 clutch number supersedes to AM141536.
The deck belt path is separated by mower-deck size:
- 48-inch deck: M154897 primary belt and M154958 secondary belt
- 54-inch deck: M154897 primary belt and M154960 secondary belt
The two deck paths share the same primary belt but use different secondary belts.
48-Inch Mower Deck Path
The John Deere X520 48-inch mower deck uses a two-belt drive system:
- Primary Belt: M154897 / M172924
- Secondary Belt: M154958 / M110313
- Standard Blades: M145476 / UC22009
- Mulching Blades: M127673
Do not substitute the M154960 secondary belt used on the 54-inch deck.
54-Inch Mower Deck Path
The John Deere X520 54-inch mower deck also uses a two-belt drive system:
- Primary Belt: M154897 / M172924
- Secondary Belt: M154960
- Standard Blades: M143520 / UC22010
- Mulching Blades: M145516
Do not substitute the M154958 secondary belt used on the 48-inch deck.
Important Fitment Check
Match the original PTO clutch number before ordering. The John Deere X520 uses the AM141536 clutch path, including the earlier AM134397 supersession path.
For deck parts, confirm whether the mower has the 48-inch or 54-inch deck before ordering the secondary belt or blades.
Before Ordering
- Confirm the tractor is a John Deere X520
- Use AM141536 for the confirmed PTO clutch path
- Confirm whether the mower has a 48-inch or 54-inch deck
- Use M154897 as the primary belt for both confirmed deck paths
- Use M154958 as the secondary belt for the 48-inch deck
- Use M154960 as the secondary belt for the 54-inch deck
- Match the original belt or blade number before ordering replacement deck parts
Common Symptoms
- Blades do not engage when the PTO switch is activated
- PTO clutch clicks but the mower deck does not begin turning
- Blades engage when cold and stop after the mower heats up
- Deck belt squeals, slips, burns, or repeatedly jumps off
- Primary belt turns but the secondary belt or blades do not
- Excessive deck vibration during blade engagement
- Uneven cutting or visible mowing streaks
FAQ
What PTO clutch fits a John Deere X520?
The confirmed John Deere X520 clutch path uses the AM141536 electric PTO clutch.
What does AM141536 replace on the John Deere X520?
The earlier AM134397 clutch supersedes to AM141536.
What belts fit the John Deere X520 48-inch deck?
The X520 48-inch deck uses M154897 as the primary belt and M154958 as the secondary belt.
What belts fit the John Deere X520 54-inch deck?
The X520 54-inch deck uses M154897 as the primary belt and M154960 as the secondary belt.
Does the X520 use M172924?
The earlier M172924 primary belt reference is replaced by the M154897 belt path.
Are M154958 and M154960 the same belt?
No. M154958 is the secondary belt for the 48-inch mower deck. M154960 is the secondary belt for the 54-inch mower deck.
What blades fit the John Deere X520 48-inch deck?
The standard 48-inch blade path uses three M145476 mower blades. The mulching blade reference is M127673.
What blades fit the John Deere X520 54-inch deck?
The standard 54-inch blade path uses three M143520 mower blades. The mulching blade reference is M145516.
Can I order John Deere X520 deck parts using only the tractor model?
No. Confirm whether the mower has the 48-inch or 54-inch deck before ordering secondary belts or blades.