- Home
- Kenworth Parts
- Kenworth T660 Parts
- Kenworth T660 Engine Parts & Cooling
- Kenworth T660 AC Driers & Compressors
Kenworth T660 AC Driers & Compressors
Frequently Asked Questions About Kenworth T660 AC Driers & Compressors
Will these AC driers and compressors fit my specific year Kenworth T660?
Our AC driers and compressors are compatible with Kenworth T660 models from 2008-2015. However, there can be variations based on your specific engine configuration and whether you have a sleeper or day cab model. We recommend checking your current part numbers or calling our tech support at 1-888-875-2438 with your VIN to ensure proper fitment before ordering.
How difficult is it to replace the AC drier and do I need special tools?
Replacing an AC drier typically takes 1-2 hours and requires basic hand tools plus AC-specific equipment including a vacuum pump, manifold gauges, and refrigerant recovery system. The drier is usually located near the condenser on the passenger side. You'll need to evacuate the system, replace the drier, pull a vacuum for at least 30 minutes, and recharge with the correct amount of R134a refrigerant. If you're not equipped for AC work, we recommend professional installation.
How often should I replace my AC drier and what are the warning signs it needs replacement?
AC driers should be replaced every 3-4 years or whenever the AC system is opened for major repairs. Common signs include reduced cooling performance, excessive moisture on AC vents, frequent compressor cycling, or visible corrosion on the drier canister. If your compressor failed, always replace the drier to prevent contamination from damaging your new compressor.
What's the difference between OEM and aftermarket compressors for my T660?
OEM compressors are manufactured to Kenworth's exact specifications and typically carry a 2-year warranty. Aftermarket options from brands like Sanden and Denso often provide similar performance at 30-40% less cost with 1-year warranties. The main differences are in mounting bracket configurations and clutch assembly designs. Both options work well, but ensure any aftermarket unit specifically lists T660 compatibility to avoid fitment issues.
Can I just replace the compressor clutch instead of the whole unit?
Yes, if your compressor body is still in good condition and only the clutch is failing, replacement clutches are available for most T660 compressors at about 1/3 the cost of a complete unit. However, if your compressor is over 5 years old or has more than 500,000 miles, replacing the complete assembly is often more cost-effective long-term. Clutch-only replacement requires removing the compressor from the vehicle and using a clutch removal tool specific to your compressor model.