Keep Your Peterbilt 567/579 AC System Running Strong
From quick fixes to full upgrades, weâve got the parts you need to restore or improve your truckâs HVAC system. This lineup includes: - AC switches, relays, and control panels - Cabin air filters and expansion valves - Heater cores and blower motors - AC condensers, hoses, and fittings - Temperature sensors and blend door actuators These parts are made to meet or exceed OEM specs, so you can count on a reliable fit and long-lasting performance.Trusted Aftermarket Brands
We carry parts from leading aftermarket names like BESTfit and Cab Fresh, so youâre getting quality gear thatâs built for your Peterbilt 567 or 579. Whether you're replacing worn components or upgrading for better airflow and efficiency, our parts are designed for easy installation and long-term durability.Why It Matters
- Stay focused and alert with a cab that's always at the right temp - Avoid costly breakdowns from a failing HVAC system - Reduce odors and airborne contaminants with fresh filters - Improve resale value with a fully functioning climate control systemShop Peterbilt 567 & 579 Heat & AC Parts Now
Don't let a damaged semi truck HVAC system hamper your driving. Find related interior dash trim parts to enhance your look and engine cooling performance components to upgrade your rig even further. Get the Heat & AC parts that keep your cab comfortable and your wheels turningâall from 4 State Trucks.Frequently Asked Questions About Peterbilt 567/579 Heat & AC Parts
Will these HVAC parts fit my specific Peterbilt 567 or 579 model year?
Most heat and AC components for Peterbilt 567/579 models are compatible across 2013-present model years, but there are important exceptions. Blower motors, evaporator cores, and heater cores typically fit all years within each model line. However, control panels and HVAC control modules can vary between early models (2013-2017) and newer ones (2018+). Always check the product description for specific year ranges, or contact our support team with your OEM for exact fitment verification.
What are the most common signs that my heater core or evaporator needs replacement?
For heater cores, watch for sweet-smelling mist from vents, wet passenger floor mats, windows fogging up constantly, or low coolant levels without visible leaks. Evaporator issues typically show as weak cooling, musty odors when AC starts, water dripping inside the cab instead of underneath, or the AC cycling on and off rapidly. Both components usually last 8-10 years in normal conditions but may fail sooner in harsh environments or with irregular maintenance.
Can I install these HVAC parts myself, or do I need special tools?
Basic components like cabin air filters, blower motor resistors, and AC switches can be installed with standard hand tools in 30-60 minutes. However, major components like evaporators and heater cores require dashboard removal and can take 6-8 hours even for experienced technicians. You'll need refrigerant recovery equipment for AC work, plus specialized trim tools to avoid breaking dash panels. We recommend professional installation for evaporators, heater cores, and any refrigerant-related repairs.
Why do OEM and aftermarket HVAC parts have such different prices?
OEM Peterbilt parts use exact factory specifications and materials, ensuring perfect fit and typically longer service life. Aftermarket options can save 40-60% but may use different materials or slightly modified designs. Quality aftermarket brands like Red Dot and Bergstrom often match OEM performance at lower cost. Budget aftermarket parts may have shorter warranties, less precise fitment, or reduced cooling/heating capacity. Consider your operating conditions and expected vehicle life when choosing.
How can I prevent premature HVAC system failure in my Peterbilt?
Replace cabin air filters every 12,000 miles or annually to prevent blower motor strain and evaporator clogging. Run your AC monthly year-round for at least 10 minutes to keep seals lubricated. Check coolant levels regularly as low coolant accelerates heater core corrosion. Clean condenser fins during pre-trip inspections to maintain cooling efficiency. Address water leaks immediately as moisture promotes electrical component failure. Following these steps can double the lifespan of major HVAC components.
