When you're logging long hours on the road, a dependable climate control system isn’t a luxury—it’s a necessity. Keep your Peterbilt 386 cool in the summer and warm in the winter with high-quality aftermarket Heat & AC parts built to last. Whether you’re fixing a weak heater or upgrading your A/C system, we’ve got the components that fit right and perform mile after mile.

Find Replacement Heating & AC Components for Your Pete 386 Model

Our Peterbilt 386 HVAC parts are engineered to OEM specs, so you get the performance you expect with the fit you need. Choose from: - Cabin air filters and blower motors - AC compressors, evaporators, and condensers - Heater cores and control valves - Expansion valves and pressure switches - Resistors, relays, and sensor replacements No matter the issue, we have the parts to get your system back in working order quickly and affordably. Don’t just prevent yourself from overheating in the driver’s seat; our replacement engine cooling parts can help prevent your rig from overheating on the road. We stock parts from trusted aftermarket brands known for durability and consistent performance. These components are made to handle the demands of daily driving and extreme weather—so your cab stays comfortable, no matter what.

Why Upgrade or Replace HVAC Components?

- Prevent breakdowns and avoid costly repairs down the line - Improve airflow and temperature control for better driver comfort - Remove odors and dust with fresh filters - Boost resale value with a fully functioning climate system

Upgrade Your Ride at 4 State Trucks

Each part in this product lineup is made specifically for the Peterbilt 386, ensuring an easy install and reliable performance. You can also add some style to your interior cab with our aftermarket Peterbilt 386 dashboard accessories. Whether you're a fleet owner or an owner-operator, our heat and AC components are built to keep your truck road-ready and comfortable.