Shop Freightliner SD 108 - 122 AC Driers & Compressors

Freightliner SD 108-122 AC Driers & Compressors

The Freightliner SD 108-122 AC Driers & Compressors product lineup offers a wide selection of high-quality replacement parts for your semi-truck's air conditioning system. This includes top-of-the-line AC compressors, driers, and related components from trusted brands like BESTfit, Sanden, and York. Whether you need to replace a worn-out compressor, upgrade to a more efficient unit, or restore your cooling system, you'll find the perfect fit for your Freightliner model. These parts are designed to deliver reliable performance and long-lasting durability, ensuring your truck's AC system keeps you cool and comfortable on the road. With options to suit a variety of makes and models, this product lineup has everything you need to maintain optimal climate control in your Freightliner SD 108-122.

Frequently Asked Questions About Freightliner SD 108-122 AC Driers & Compressors

Will these AC driers and compressors fit my specific Freightliner model year?

These AC components are designed for Freightliner trucks with SD 108, 114, and 122 hood models, typically covering model years from the late 1990s through 2010. However, compatibility can vary based on your specific engine configuration and AC system type. We recommend checking your existing part numbers or contacting our support team 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 for someone with basic mechanical skills. You'll need standard hand tools, AC manifold gauges, a vacuum pump, and proper refrigerant recovery equipment. The drier usually mounts with simple brackets near the condenser. Remember that the AC system must be properly evacuated before removal and recharged after installation, which may require professional equipment if you don't have access to it.

How often should I replace my AC drier and what are the warning signs?

AC driers should be replaced every 3-4 years or whenever the AC system is opened for major repairs. Warning signs include reduced cooling performance, unusual odors from the vents, visible moisture or oil leaks around the drier, or if your AC system has been contaminated. If your compressor has failed, always replace the drier to prevent debris from damaging your new compressor.

What's the difference between OEM and aftermarket compressors for my Freightliner?

OEM compressors are manufactured to exact factory specifications and typically carry longer warranties, but cost significantly more. Quality aftermarket compressors from reputable brands like Sanden or Four Seasons often perform just as well at a lower price point. The main differences are warranty length (usually 1 year vs 2-3 years) and price. Both require the same installation process and use identical mounting points.

Can I just replace the compressor without changing the drier?

While technically possible, it's strongly discouraged and may void your compressor warranty. When a compressor fails, it often sends metal particles and debris throughout the AC system. The drier acts as a filter and moisture absorber. Installing a new compressor without replacing the drier risks contaminating your new compressor with old debris and moisture, leading to premature failure. Always replace both components together for optimal system performance and longevity.