Reliability & cost of ownership
Kenworth T660 Reliability & Common Problems
How reliable is the Kenworth T660? Compare every model year side by side — NHTSA recalls, owner complaints, and crash-test stars — then open the year you're shopping for a full reliability and repair-cost forecast.
Kenworth T660 problems by model year
57 recall entries and 7 owner complaints on file across 5 model years, sourced from the federal NHTSA database.
| Year | Recalls | Complaints | NCAP stars | Full report |
|---|---|---|---|---|
| 2014 T660 | 11 | 1 | No NCAP test | Reliability forecast → |
| 2012 T660 | 9 | 1 | No NCAP test | Reliability forecast → |
| 2011 T660 | 13 | 1 | No NCAP test | Reliability forecast → |
| 2010 T660 | 10 | 2 | No NCAP test | Reliability forecast → |
| 2008 T660 | 14 | 2 | No NCAP test | Reliability forecast → |
Most-complained-about components
Owner complaints filed with NHTSA against the Kenworth T660, grouped by the component each complaint names — the fastest read on where this model gives trouble.
- service brakes3 complaints
- engine and engine cooling2 complaints
- electrical system1 complaint
- steering1 complaint
- hydraulic1 complaint
- unknown or other1 complaint
- engine1 complaint
- air1 complaint