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Kenworth T800 AC Driers & Compressors
Frequently Asked Questions About Kenworth T800 AC Driers & Compressors
Will these AC driers and compressors fit my specific year Kenworth T800?
Most AC driers and compressors for the Kenworth T800 are compatible with models from 1987 through 2007. However, there are variations between early models (1987-1999) and later models (2000-2007) due to different mounting brackets and hose configurations. Always verify the part number against your VIN or existing component before ordering. If you're unsure, our team can help verify compatibility with your truck's serial number.
What are the signs that my T800's AC drier or compressor needs replacement?
Common indicators include weak or no cold air output, unusual noises from the compressor (grinding, squealing, or knocking), visible refrigerant leaks around fittings, excessive moisture in the cab, or the AC clutch not engaging. For driers specifically, if your system has been opened or contaminated, replacement is mandatory. Most technicians recommend replacing the drier whenever the compressor is changed to prevent system contamination.
Can I install these components myself, or do I need special tools?
While mechanically inclined individuals can handle the physical installation, proper AC service requires specialized equipment. You'll need a refrigerant recovery machine, vacuum pump, manifold gauges, and the ability to properly evacuate and recharge the system. The compressor typically requires removing the belt, disconnecting refrigerant lines, and unbolting from the engine. Many customers choose professional installation to ensure proper refrigerant handling and system performance.
What's the difference between OEM and aftermarket options for my T800?
OEM compressors (typically Sanden or Seltec/Valeo) offer exact fit and proven reliability but come at a premium price. Quality aftermarket options can save 30-50% while maintaining good performance. Key differences include warranty coverage (OEM often provides longer warranties), clutch quality, and internal component tolerances. For driers, aftermarket options perform comparably to OEM when properly sized for your system's refrigerant capacity.
How long should a T800 AC compressor last, and what maintenance extends its life?
A well-maintained AC compressor typically lasts 150,000-200,000 miles in a T800. Regular maintenance includes checking belt tension monthly, ensuring proper refrigerant levels, keeping the condenser clean, and running the AC system for 10-15 minutes monthly during winter. Premature failure often results from low refrigerant levels causing inadequate lubrication, contaminated systems, or running with a slipping belt. Annual system inspections can catch issues before costly compressor damage occurs.