Frequently Asked Questions About Peterbilt 362 AC Driers & Compressors

What years and models of Peterbilt 362 are these AC components compatible with?

Our AC driers and compressors are designed to fit Peterbilt 362 models from 1980 through 1987. However, compatibility can vary based on your specific engine configuration and whether your truck has factory AC or an aftermarket system. We recommend checking your current compressor's part number or contacting us with your VIN to ensure proper fitment before ordering.

How difficult is it to replace the AC compressor on a Peterbilt 362?

Replacing an AC compressor typically requires 2-4 hours for an experienced mechanic. You'll need to evacuate the AC system, remove the serpentine belt, disconnect the AC lines and electrical connections, and unbolt the compressor from its mounting bracket. The most challenging part is often accessing the lower mounting bolts due to limited space. Having the proper AC recovery equipment and manifold gauges is essential, as is adding the correct amount of PAG oil to the new compressor.

What's the difference between OEM and aftermarket AC driers for my 362?

OEM driers typically use aluminum construction with molecular sieve desiccant and feature exact-fit fittings that match factory specifications. Aftermarket options often use similar materials but may have slightly different port configurations. While aftermarket driers can save you 30-50% in cost, they sometimes require adapter fittings. Both perform the same moisture-removal function, but OEM parts generally offer easier installation and longer service intervals.

How often should I replace the receiver drier when servicing my AC system?

The receiver drier should be replaced every time you open the AC system for major repairs, especially when replacing the compressor. Moisture contamination is the number one cause of AC system failure, and a saturated drier cannot protect your system. As a preventive measure, replace the drier every 3-4 years even if the system hasn't been opened, as the desiccant gradually loses effectiveness over time.

What are the signs that my Peterbilt 362's AC compressor is failing?

Common symptoms include loud grinding or squealing noises when the AC is engaged, intermittent cooling, excessive clutch cycling, visible oil leaks around the compressor shaft seal, or the clutch not engaging at all. If you notice metal shavings in the receiver drier sight glass or when changing the drier, this indicates internal compressor damage. Address these issues promptly to prevent contaminating the entire AC system with debris.