The Volvo VNR AC Driers & Compressors product line features a wide selection of high-quality replacement parts for Volvo semi-trucks, including AC compressors, driers, and associated components. These products are designed to keep your Volvo VNR's climate control system running smoothly and efficiently, whether you need a direct OEM replacement or an upgraded aftermarket option.
The lineup includes a variety of Sanden-style, York-style, and other AC compressor models with different pulley configurations, clutch sizes, and port orientations to fit your specific truck. You'll also find essential accessories like mounting brackets, hoses, and fittings to complete your A/C system repair or upgrade.
With options from trusted brands like BESTfit and RigMaster, you can be confident in the quality and performance of these Volvo VNR AC parts. Whether you're looking to replace a failed compressor, upgrade to a more powerful unit, or maintain optimal cooling capacity, this product line has the parts you need to keep your Volvo running at its best.
Frequently Asked Questions About Volvo VNR AC Driers & Compressors
Which AC compressor is compatible with my specific Volvo VNR model year?
The Volvo VNR uses different compressor configurations depending on the model year and engine type. For 2018-2021 VNR models with D11 or D13 engines, the standard Sanden-style SD7H15 compressor is most common. 2022+ models may use the newer QP15 or QP21 compressors. Always verify compatibility by checking your VIN number or the part number on your existing compressor, typically found on a metal tag attached to the compressor body.
How often should I replace the AC receiver drier, and what are the signs it needs replacement?
Replace your AC receiver drier every 2-3 years or whenever you open the AC system for repairs. Signs of a failing drier include reduced cooling performance, visible moisture or oil at AC connections, unusual odors from vents, or if your AC system has been contaminated. It's critical to replace the drier anytime you replace the compressor to prevent system contamination and maintain your warranty coverage.
Can I install a new AC compressor myself, or do I need special tools?
While mechanically inclined individuals can physically install the compressor, proper AC system service requires specialized equipment. You'll need a vacuum pump, manifold gauge set, and refrigerant recovery machine to properly evacuate and recharge the system. Most importantly, EPA 609 certification is legally required to handle refrigerants. We recommend professional installation to ensure proper oil levels, system evacuation, and leak testing.
What's the difference between OEM and aftermarket AC compressors for my VNR?
OEM compressors are manufactured to Volvo's exact specifications and typically carry a 2-year warranty. Quality aftermarket options like Denso or Four Seasons often match OEM performance at 30-40% less cost and include 1-year warranties. Key differences include clutch assembly design, pulley groove count (usually 6 or 8 groove), and port locations. Ensure any aftermarket choice matches your original's specifications exactly to avoid fitment issues.
Why is my new AC compressor cycling on and off frequently?
Rapid cycling typically indicates incorrect refrigerant charge levels, a faulty pressure switch, or electrical issues. First, verify the system has the correct R134a charge amount (usually 2.5-3.0 lbs for VNR models). Check that the low and high pressure switches are functioning properly. Ensure the compressor clutch gap is within spec (0.016-0.031 inches). If cycling persists, have the system pressure tested as there may be a restriction in the condenser or expansion valve.
