Air Conditioning and Heating / Valve Cores
Browse high-quality A/C valve cores for Class 3-8 trucks, engineered to provide secure, leak-resistant sealing in HVAC service ports and refrigerant lines. Midwest Heavy Duty offers OEM-equivalent and aftermarket valve cores compatible with top brands like Freightliner, Kenworth, Peterbilt, Volvo, and International. Designed for durability and pressure resistance, our valve cores support both R134a and R1234yf systems, making them ideal for routine maintenance, repairs, and system recharges. With fast shipping, competitive pricing, and expert support, we help ensure your fleet’s air conditioning systems remain sealed and reliable.
