Peterbilt 359 Heat & AC Parts
Replacement AC & Heat Components
Thatâs where our aftermarket Peterbilt 359 Heat & AC parts come in. Whether youâre running through summer heat or winter chill, you need a dependable HVAC system to keep your cab comfortable and your windshield clear.Find Perfect Replacement Components
We carry high-quality components designed specifically for your 359: - Blower motors for strong airflow - Evaporators and condensers to keep cool air flowing - Heater cores that deliver steady cabin warmth - AC switches, expansion valves & control panels to fine-tune your climte - Fittings, hoses & brackets for complete installs or repairsThese parts are engineered to match OEM specs, so installation is simple and performance is reliable.
Why Upgrade Your Semi Truck HVAC System?
Worn-out components lead to poor airflow, weak cooling, or a frosty cab in the winter. Swapping in new aftermarket parts can help: - Restore proper air circulation - Eliminate strange noises or inconsistent temps - Improve defrost and window clarity - Make long hauls more bearable in any seasonPlus, new parts help extend the life of your entire HVAC systemâsaving you downtime and money in the long run. Whether you're doing a full HVAC rebuild or just replacing a failed part, our Peterbilt 359 Heat & AC lineup has what you need to stay comfortable and focused behind the wheel.
Comfort That Works as Hard as You Do
Shop now and keep your 359 cab climate just the way you like itâcool in the summer, warm in the winter, and dependable all year long. Take things a bit further by upgrading your Peterbilt 359 interior dashboard to look good and replacing any of your worn-out engine cooling components for stronger performance.Frequently Asked Questions About Peterbilt 359 Heat & AC Parts
What years of Peterbilt 359 trucks are these heat and AC parts compatible with?
Most of our heat and AC parts are designed to fit Peterbilt 359 models from 1967 through 1987. However, compatibility can vary depending on the specific part and whether your truck has factory air conditioning or aftermarket systems. We recommend checking the individual product descriptions or contacting our support team with your truck's VIN and year for exact fitment confirmation.
Are these genuine Peterbilt OEM parts or aftermarket replacements?
We carry both OEM and high-quality aftermarket options. OEM parts are clearly labeled in our product listings and typically come with manufacturer warranties. Our aftermarket parts are sourced from reputable suppliers who specialize in heavy-duty truck components and often provide comparable quality at more affordable prices. Each product page specifies whether the part is OEM or aftermarket.
How difficult is it to replace the heater core or AC evaporator in a Peterbilt 359?
Replacing these components typically requires 4-6 hours of labor and intermediate mechanical skills. The dash panel and HVAC box usually need to be partially removed to access the heater core or evaporator. Common challenges include disconnecting old hose fittings without damage and properly sealing the new unit to prevent leaks. We recommend having a service manual on hand and allowing extra time for older trucks where corrosion may complicate removal.
What are the most common AC and heating problems in Peterbilt 359 trucks?
The most frequent issues we see are leaking heater cores (indicated by coolant smell or foggy windshield), failed blower motor resistors causing fan speed problems, and AC compressor clutch failures. For trucks over 20 years old, deteriorated hoses and O-rings are also common culprits. Many of these problems can be diagnosed by checking for coolant leaks, testing electrical connections, or listening for unusual compressor noises.
Do you offer complete HVAC upgrade kits for older Peterbilt 359 models?
Yes, we stock several retrofit kits that can upgrade older R12 systems to modern R134a refrigerant, as well as complete heating and cooling packages for trucks that originally came without factory air. These kits typically include the compressor, condenser, evaporator, hoses, and necessary mounting hardware. Installation generally requires professional expertise due to refrigerant handling requirements and system evacuation procedures.
