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Cat 302.5 Aftermarket Idler 140-4009

Cat 302.5 Idler 140-4009
Rubbertrax
Cat 302.5 Aftermarket Idler 140-4009
Buy aftermarket tension idlers for the Caterpillar 302.5 mini excavators online and save versus buying from your local dealer. We stock tracks, bottom rollers, top rollers and sprockets for your 302.5. Save online and skip the trip to the dealer. This 140-4009 idler ships free when you check out online.
SKU: 140-4009
Weight: 65 lbs
Make: Cat
Price: $615.00

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This is the replacement aftermarket tension idler for the Caterpillar 302.5 mini excavator. The tension idler installs on the opposite end of the undercarriage from the sprocket and this is the part that expands out as you pump the grease in the tensioner to tighten the rubber track. Some people refer to this larger roller as the pulley. This idler is guaranteed to fit, please call us if you have any questions.
The mounting arms (yokes) are nine and three quarter inches long and three inches wide.
If your Cat 303.5 measurements match up this is the idler you need for your 303.5 as well.

The 302.5 and 303.5 also have a ten and a half inch yoke option under part number 172-2017AM. Please verify your size.

Alternate Part Numbers

  • Caterpillar Dealer Part Number: 140-4009, 140-4005, 140-4002

Optional Part Availability

The 302.5 and 303.5 also have a ten and a half inch yoke option under part number 172-2017AM. Please verify your size. This idler is known to fit serial numbers: 4AZ1- above

Alternate Models

This tension idler (140-4009) is known to fit:

  • Cat® 302.5
  • Cat®303.5 Verify Fit

Cat 302.5 Undercarriage