Caterpillar 307 B~D 308 B~D Aftermarket Idler

Our Products: Cat Mini Excavator > Caterpillar 307 308
SKU: 277-8667
Weight: 115 lbs
Buy aftermarket idlers for your Cat 307 B~D and 308 B~D online at Rubbertrax and save versus going to your Cat dealer. The price listed includes free shipping to a commercial address via freight truck.
Price: $780.00
Please visit Rubbertrax.com for online checkout.
Cat 307 277-8667
Caterpillar 307 B~D 308 B~D Aftermarket Idler
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New undercarriage parts and rubber tracks are sold individually but we suggest replacing all of your worn parts at the same time.

This is the aftermarket idler for the Caterpillar 307 B~D and 308 B~D mini excavator. This idler is guaranteed to fit so order online with confidence.


This idler also fits the following models:

  • 307B
  • 307C Must Verify Serial, Alt. Option: 185-9162
  • Cat® 307D
  • Cat® 307E
  • Cat® 307E2
  • Cat® 307CSB
  • Cat® 308B
  • Cat® 308C
  • Cat® 308 CC Must Verify Serial, Alt. Option: 185-9162

You must verify your part number, serial number and/or specs prior to purchasing as there may be another idler option for your machine.


Must Ship Freight Carrier

Due to the weight of this idler it must ship via freight truck on a pallet. Do not choose the Fedex Ground option or it will delay your order.


Alternate Part Number:
Caterpillar dealer part number: 277-8667
Alternate Models:
Caterpillar: 307B, 307C, 307D, 307E, 307E2, 307 CSB, 308B, 308C, 308CCR
Alternate Part: There are no known alternate part listings. This idler is guaranteed to fit if serial, model, and specs are confirmed. Some models may require alternate part number 185-9162.

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 the optimal wear.

Caterpillar® 307 Excavator Parts

Cat® 307 Sprocket 294-8262
Cat® 307 Idler 277-8667
Cat® 307 Carrier Roller 277-8576

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