The worst 2015 Caterpillar CT660 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
Recalls 1
Parking brake: conventional: air
- What is wrong
- Caterpillar Inc. (Caterpillar) is recalling certain model year 2015 CT660, and CT681 trucks manufactured July 28, 2014, to November 5, 2014. The affected vehicles may experience brake drag due to an improperly seated diaphragm in the brake chamber.
- Risk
- Brake drag may result in a wheel end fire.
- Remedy
- Caterpillar will notify owners, and dealers will replace the brake actuators, free of charge. An interim letter was mailed to owners on March 18, 2015. A second notice will be mailed once parts become available. Owners may contact Caterpillar customer service at 1‑309‑675‑5658.
Recall number 14V814000 · Recall details
Technical service bulletins for the 2015 Caterpillar CT660 49
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Product Link models PL121/321s will stop sending data after April 6th, 2019
- Engine software On Board Diagnostic (OBD) issues will be corrected, which will aid in engine malfunction...
- Certain truck models that were built with 2013 through 2015 model year CT13 engines
- Lower shock absorber mounting bracket may break, this is due to that the shock absorber dimension is...
- There is a problem with certain truck models that were built with 2013 through 2015 model year CT13 heavy...
- There is a problem which relates to engine emissions on certain CT660, CT680, and CT681 On Highway Trucks...
- Extended life coolant (ELC) exhibiting nitrite depletion in machines equipped with aluminum...
- The existing exhaust flex pipe CAN crack on certain CT660, CT680, and CT681 on-highway trucks
- There is a problem with the calibration file on certain CT660 on highway trucks that were built with 2010...
- Spn 731 fmi 16/18 knock detected for cat CT11 and CT13 engines - the following procedure is for...
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Questions about the 2015 Caterpillar CT660
Is the 2015 Caterpillar CT660 reliable?
Owners have filed 0 complaints about the 2015 Caterpillar CT660.
What is the most common problem with the 2015 Caterpillar CT660?
There are not enough complaints to tell.
How many recalls does the 2015 Caterpillar CT660 have?
1 recall, covering parking brake.
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