GY21339 PTO Clutch Replacement for John Deere D140, LA145, L130 | Replaces Warner 5219-113, X0425

Overview

This aftermarket GY21339 electric PTO clutch replacement is built for select John Deere and Scotts mower applications using the GY21339 / Warner 5219-113 / Warner 5219-114 / X0425 clutch path.

This clutch is commonly used as a replacement for John Deere GY21339 and cross-references Warner 5219-113, Warner 5219-114, Xtreme X0425, X0425-K, Stens 255-299X, and 19-425 when the original clutch number and physical specifications match this listing.

Built with a 1-inch crankshaft bore, 6.30-inch class pulley, CCW rotation from pulley side, and an integral wiring connector style as shown in the product photos, this PTO clutch is designed to restore reliable mower deck blade engagement after a worn or failed clutch.

Key Features

• Aftermarket electric PTO clutch replacement for the John Deere GY21339 clutch path
• Crankshaft Bore: 1" / 1.000"
• Pulley Diameter: 6.30" class / approximately 6-5/16"
• Rotation: CCW / counter-clockwise from pulley side
• Voltage: 12V electric PTO clutch
• Belt Width: 1/2" or 5/8" belt compatibility on supported applications
• Connector Style: integral connector / wire harness style as shown in product photos
• Encapsulated electromagnetic coil for consistent blade engagement
• Pre-assembled clutch and pulley unit for direct replacement installation after fitment verification
• Designed for mower deck drive engagement on compatible John Deere and Scotts applications

Compatible Brands & Models

This PTO clutch fits select mower platforms using the GY21339 / Warner 5219-113 / Warner 5219-114 / X0425 replacement path. Fitment depends on original clutch number, mower configuration, deck setup, crankshaft bore, pulley diameter, belt width, rotation, connector style, and anti-rotation setup.

John Deere Applications

• John Deere 100 Series: select 145, 155C, and 190C models
• John Deere D-Series: select D140, D150, D155, D160, and D170 models
• John Deere E-Series: select E140, E150, E160, E170, and E180 models
• John Deere L-Series: select L120 and L130 models
• John Deere LA-Series: select LA130, LA140, LA145, LA150, LA155, LA165, and LA175 models
• John Deere S-Series: select S140, S160, S170, and S180 models
• John Deere X-Series and related models: select 92H, G110, X117R, X135R, X140, X146R, X165, X166, and X167 models

Scotts Applications

• Scotts L2048: select applications using the GY21339 clutch path
• Scotts L2548: select applications using the GY21339 clutch path

Fitment note: If your original clutch is stamped with GY21339, 5219-113, or 5219-114, this is the intended replacement path. If you are shopping by mower model alone, carefully confirm your crankshaft bore, pulley diameter, belt width, rotation, connector style, anti-rotation setup, and product photos before ordering. Some John Deere model families used different PTO clutch numbers depending on deck size, production date, and mower configuration.

Replaces OEM Part Numbers

John Deere: GY21339

Cross-Reference Aftermarket Numbers

• Warner: 5219-113, 5219113
• Warner: 5219-114, 5219114
• Xtreme: X0425, X0425-K
• Stens: 255-299X
• Industry / WAI: 19-425

What’s Included

• Complete electric PTO clutch assembly
• Integrated pulley
• Pre-installed bearing assembly
• Encapsulated electromagnetic coil
• Integral connector / wire harness style as shown in product photos

Why Buy From PTO Direct USA?

• Fast USA shipping
• fitment guarantee
• 1-year warranty
• Fitment-first product support
• Clear product images for easier clutch identification
• Trusted replacement supplier for homeowners, repair shops, and mower service professionals

FAQ

Does this PTO clutch replace John Deere GY21339?

Yes. This aftermarket PTO clutch replaces John Deere GY21339 on compatible John Deere and Scotts mower applications using the same clutch path.

Does this replace Warner 5219-113?

Yes. This clutch cross-references Warner 5219-113 when the original clutch number, 1-inch bore, 6.30-inch class pulley, CCW rotation, connector style, and anti-rotation setup match this listing.

Does this replace Warner 5219-114?

Yes. This listing includes Warner 5219-114 in the GY21339 / X0425 clutch path. Confirm your original clutch number and product photos before ordering.

Does this replace Xtreme X0425?

Yes. This PTO clutch cross-references Xtreme X0425 and X0425-K on compatible John Deere and Scotts applications using the GY21339 replacement path.

Is GY21339 the same as GY20878?

No. Some catalogs may group GY21339 near the GY20878 / GY20108 / GY20652 / GY21340 family because the broad specs can look similar. PTO Direct USA keeps these as separate fitment paths so buyers can verify the correct original clutch number, connector style, pulley, belt width, rotation, anti-rotation setup, and product photos before ordering.

What if my old clutch is marked GY20878, GY20108, GY20652, or GY21340?

Those numbers are handled on a separate John Deere clutch path. If your original clutch is marked GY20878, GY20108, GY20652, GY21340, 5219-20, or 5219-73, compare your original clutch to the GY20878 PTO clutch replacement page before ordering. Do not choose by mower model alone, because similar John Deere models may use different clutch numbers by deck setup, connector, or production range.

What John Deere models commonly use this clutch?

This clutch is commonly associated with select John Deere 145, 155C, 190C, D140, D150, D155, D160, D170, E140, E150, E160, E170, E180, L120, L130, LA130, LA140, LA145, LA150, LA155, LA165, LA175, S140, S160, S170, S180, G110, X140, X165, and related applications. Always confirm your original clutch number before ordering.

Does this fit Scotts L2048 or L2548?

Yes. This clutch is listed for select Scotts L2048 and Scotts L2548 applications using the GY21339 clutch path. Confirm your original clutch number and physical specs before ordering.

What bore size does this PTO clutch use?

This clutch uses a 1-inch crankshaft bore. It will not fit a 1-1/8 inch crankshaft.

What pulley diameter does this PTO clutch use?

This clutch uses a 6.30-inch class pulley, commonly referenced near 6-5/16 inches in aftermarket catalogs. Always compare the pulley size, belt profile, and product photos against your original clutch before ordering.

What rotation does this clutch use?

This clutch uses counter-clockwise rotation, commonly written as CCW, when viewed from the pulley side. Match rotation before installing a replacement PTO clutch.

What are common signs of a failing PTO clutch?

Common symptoms include mower blades not engaging, the PTO clutch clicking but the blades not spinning, slipping under load, intermittent blade engagement, a burning smell, or blades slowing down after the mower heats up. A worn PTO clutch coil can work cold, then weaken after 10 to 30 minutes of mowing.

Can PTO Direct USA help me confirm fitment?

Yes. Email support@ptodirectusa.com with your mower model number, serial number, deck size, original clutch number, and clear photos of the old clutch. Include photos of the pulley, bore, wiring connector, clutch label or stamped number, and anti-rotation bracket area.

Removal warning: If your old clutch will not slide off the crankshaft, do not pry or hammer against the clutch body. Read the PTO clutch stuck on crankshaft guide before removal.

Need a different clutch? Browse the John Deere PTO clutch collection or the full electric PTO clutch catalog.