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Caterpillar 239D 249D Rear Idler 536-3553

Cat 239D 249D Rear Idler 420-9805
Caterpillar 239D 249D Rear Idler 536-3553
Buy aftermarket 420-9805 and 536-3553 rear idlers for your Cat 239D and 249D online at Rubbertrax and save versus going to your Cat dealer. Save online and skip the trip to the dealer. We supply the entire undercarriage for the Cat 239 track loader series. Order today and get FREE shipping when you order online.
SKU: 420-9805
Weight: 65 lbs
Make: Cat
Shipping: Fast and Free!
Price: $621.00

Rubber tracks and wear parts are sold individually unless specified in the details. We offer free shipping across the USA when you order online and ship to a commercial address. *Some restrictions apply.

420-9805 536-3553 Cat® 239D 249D Rear Idler

The 420-9805 is a single flange rear idler that comes fully assembled and ready to install. It is interchangeable with the newer generation 536-3553 part number. Two bolts from the side mount this idler into the track frame. If your rear idler is worn down it can fail or cause the track to fall off during turns or hillside operation. The rear idler carries more of the weight of the machine when the loader does not have a load in the bucket balancing out the load. With the rear idler taking on the extra load they tend to wear out faster than the front idlers. This is the aftermarket rear idler for the following Caterpillar® compact track loaders:

  • Caterpillar® 239D
  • Caterpillar® 249D
  • Caterpillar® 239 D3
  • Caterpillar® 249 D3
  • Caterpillar® 239 DLRC
  • Caterpillar® 249 DLRC

This idler is guaranteed to fit so order online with confidence. It is always important to change your undercarriage parts and rubber tracks at the same time to maximize the life span of the tracks and parts and get optimal wear. The color can vary and will not match your original yellow factory paint. This idler only fits these few specific models.

Alternate Part Numbers

  • Caterpillar® Dealer Part Number: 420-9805

Optional Part Availability

There are no known alternate part listings. This 536-3553 single flange idler is guaranteed to fit.

Reliable Quality

These single flanged idlers are made to original specifications and produced with high-quality double lip seals to lock dirt and debris out and lock the lubrication in for long-lasting service for your machine. Our parts come backed up by a factory warranty so you can buy them online with confidence.

Cat 249D Rubber Track Fitment FAQ

Yes, We stock both the 16-inch wide 400x86x49, and the 13-inch wide 320x86x49.

Rubber tracks on Cat 249D track loaders can last months or years depending on several factors. If you replace all of the worn undercarriage parts at the same time you install your rubber tracks then the lifespan will be increased up to 20% compared to installing tracks on worn sprockets. If your Cat track loader operator is carefully making decisions on the job site and limiting high-speed travel while avoiding curbs and debris, that will significantly increase the lifespan of your rubber tracks. Learn more about our quality rubber tracks.