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John Deere Disc-AT78424

SKU:
AT78424
John Deere Disc-AT78424
Part # AT78424

Fits Models At A Glance

  • John Deere Skidders: 340D, 440, 440A, 440B, 440C, 440D, 448D
  • John Deere Crawler Dozers: 400G, 450, 450C, 450E

Key Notes

  • Part Number(s): AT78424
  • Interchange Numbers: AT315821
  • Weight: 5.6 lbs
  • Application: 12" transmission clutch disc for John Deere skidders and crawler dozers
  • Condition: Aftermarket replacement part
  • Dimensions: 12" disc diameter with a 1-1/4" hub
  • Style/Type: 6-pad disc with a solid center and a 10-spline hub
  • Serial Number Notes: On 340D, 440 and 440A skidders with the 12" single-stage clutch and PPA hub, fitment is listed Before Serial Number 21831 and for Serial Numbers 25708 through 109737. On 440 and 440A skidders with the 12" single-stage clutch without a PPA hub, it fits all serial numbers.

Why Choose Broken Tractor

  • We Check Part Numbers Before Your Order Ships - Send us your model and serial number, and our team will confirm the disc matches your machine's clutch before it leaves the building.
  • Parts Help From People Who Know Iron - Our staff works with skidder and dozer drivetrain parts every day and can help you track down the related clutch parts for the job.
  • Fast Shipping from a U.S.-Based Team - Orders are packed and shipped quickly so your machine spends less time parked and more time working.
$246.41

Shipping calculated at checkout. If any item in your order is temporarily unavailable, we'll contact you to arrange a back-order or refund — whichever you prefer.

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Our knowledgeable staff will be happy to help you with any of your tractor, backhoe, dozer, or engine parts needs.

1-800-909-7060 Parts Request Form

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Shipping & Return Policy

Do you need your part quickly? You're in luck! We have warehouses all over the country to ensure a quick and easy delivery time. Most of our parts ship from our warehouses the same day you place your order. And many times, orders are delivered in Two to Three days.

Our in house parts are manufactured following strict quality standards in our warehouse in Ohio. Parts such as hydraulic cylinders, pins, bushings, sheet metal, track adjusters, booms and dipper sticks are all ready to ship same day that they are purchased! With less time to wait for your shipment, you will be able to get back to work as quickly as possible.

Did you accidentally purchase the incorrect part? We offer returns and exchanges here at Broken Tractor. To proceed with a return, please fill out our form, and we will provide you with return authorization and a step by step return process for your convenience. We are more than happy to help you exchange your part for the correct one! fill out our form to make a request here at Return Request Form and we would be pleased to help you.

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Product: Category: Brand: Head Title: John Deere Disc-AT78424 | Broken Tractor