AM119971 PTO Clutch Replacement for John Deere LX172, LX173, LX176, LX178 | Replaces AM123038, AM38260

Overview

This aftermarket AM119971 electric PTO clutch replacement is built for select John Deere LX-Series lawn tractor applications using the AM119971 / AM123038 / AM38260 / Warner 5215-55 clutch path.

This clutch replaces John Deere AM119971, AM123038, and AM38260. It also cross-references Warner 5215-55, Warner 5215-92, Warner 5215-96, Warner 5215-112, Xtreme X0408, Stens 255-132, and Oregon 33-263 when the original clutch number and physical specifications match this listing.

Built with a 1-inch crankshaft bore, 5-5/16 inch pulley class, single pulley, CCW rotation from pulley side, and an integrated wire harness / connector style as shown in the product photos, this PTO clutch is designed to restore reliable mower deck blade engagement on compatible John Deere LX-Series tractors.

Important fitment note: This page is centered on the AM119971 / Warner 5215-55 / X0408 LX-Series clutch path. Do not choose by model name alone. Confirm your original clutch number, crankshaft bore, pulley diameter, belt width, rotation, connector style, anti-rotation setup, and product photos before ordering.

Key Features

• Aftermarket electric PTO clutch replacement for the John Deere AM119971 clutch path
• Crankshaft Bore: 1" / 1.000"
• Pulley Diameter: 5-5/16" class / approximately 5.31"
• Pulley Type: single pulley
• Rotation: CCW / counter-clockwise from pulley side
• Voltage: 12V electric PTO clutch
• Belt Width: 1/2" or 5/8" belt compatibility on supported applications
• Encapsulated electromagnetic coil for consistent blade engagement
• Pre-assembled clutch and pulley unit for direct replacement installation after fitment verification

Compatible Brands & Models

This PTO clutch fits select John Deere LX-Series lawn tractor applications using the AM119971 / AM123038 / AM38260 / Warner 5215-55 replacement path. Fitment depends on original clutch number, mower configuration, crankshaft bore, pulley diameter, belt width, connector style, and anti-rotation setup.

John Deere LX-Series Applications

• John Deere LX172: select applications using the AM119971 clutch path
• John Deere LX173: select applications using the AM119971 clutch path
• John Deere LX176: select applications using the AM119971 clutch path
• John Deere LX178: select applications using the AM119971 clutch path
• John Deere LX186: select applications using the AM119971 clutch path
• John Deere LX187: select applications using the AM119971 clutch path
• John Deere LX188: select applications using the AM119971 clutch path

Replaces OEM Part Numbers

John Deere: AM119971, AM123038, AM38260

Cross-Reference Aftermarket Numbers

• Warner: 5215-55, 521555
• Warner: 5215-92, 521592
• Warner: 5215-96, 521596
• Warner: 5215-112, 5215112
• Xtreme: X0408
• Stens: 255-132
• Oregon: 33-263

What’s Included

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

Why Buy From PTO Direct USA?

• Fast USA shipping
• OEM-spec 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 AM119971?

Yes. This aftermarket PTO clutch replaces John Deere AM119971 on compatible John Deere LX-Series lawn tractor applications using the same clutch path.

Does this replace John Deere AM123038?

Yes. This clutch replaces John Deere AM123038 when the original clutch number and physical specifications match the AM119971 / Warner 5215-55 path.

Does this replace John Deere AM38260?

Yes. This listing includes John Deere AM38260 in the AM119971 / AM123038 / Warner 5215-55 clutch path.

Does this replace Warner 5215-55?

Yes. This PTO clutch cross-references Warner 5215-55 and 521555 on compatible John Deere LX-Series applications.

Does this replace Warner 5215-92, 5215-96, or 5215-112?

Yes. This listing includes Warner 5215-92, 5215-96, and 5215-112 as related cross-references for the AM119971 clutch path when the original clutch number and physical specs match.

Does this replace Xtreme X0408?

Yes. This PTO clutch cross-references Xtreme X0408 for compatible John Deere AM119971 applications.

Does this fit John Deere LX172, LX173, LX176, or LX178?

Yes. This clutch is commonly associated with select John Deere LX172, LX173, LX176, and LX178 applications using the AM119971 / Warner 5215-55 clutch path. Always confirm your original clutch number before ordering.

Does this fit John Deere LX186, LX187, or LX188?

Yes. This clutch is commonly associated with select John Deere LX186, LX187, and LX188 applications using the AM119971 clutch path. Match your original clutch number and product photos before ordering.

Is AM119971 the same as AM100979 or AM122969?

No. AM119971 belongs to the LX-Series Warner 5215-55 / X0408 path. AM100979 and AM122969 belong to the STX Yellow Deck Warner 5215-35 / X0407 path. Do not merge these clutch paths unless your original clutch number confirms compatibility.

What bore size does this PTO clutch use?

This clutch uses a 1-inch crankshaft bore. Confirm your crankshaft size before ordering.

What pulley diameter does this PTO clutch use?

This clutch uses a 5-5/16 inch pulley class, commonly listed around 5.31 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 John Deere fitment? Browse the John Deere PTO clutch collection or the full electric PTO clutch catalog.