Types of Radiators Available for Semi Trucks
Not all radiators are created equal, and different trucks require different builds to perform efficiently. At Fitzgerald, we carry a wide range of radiator options to fit your specific model, from Peterbilt to Kenworth and beyond. Freightliner Radiators are one of our top-selling categories, and we're proud to keep drivers stocked with the parts they need, when they need them.
Radiators generally come in two primary construction types: copper/brass and plastic/aluminum. Copper/brass radiators are known for their superior heat transfer properties, making them ideal for trucks that endure heavy workloads and steep inclines. These models are highly durable and serviceable, often favored by operators who value long-term reliability.
Plastic/aluminum radiators -- on the other hand -- are lighter in weight and typically more cost-effective, making them a great choice for budget-conscious buyers who still want dependable performance. Advances in manufacturing have made these radiators more durable than ever, offering excellent cooling while reducing overall truck weight for improved fuel efficiency.
We also carry high-performance radiator assemblies designed for trucks that demand maximum cooling capacity. No matter the brand or build, our selection makes it easy to find the right fit for your truck's specific application.
Signs You Need a New Radiator
Radiators can last for many miles, but they don't last forever. Knowing the signs of a failing radiator can help you avoid unexpected breakdowns on the road. Some of the most common indicators include:
- Frequent overheating, especially under heavy loads or uphill drives.
- Coolant leaks under your truck, often caused by cracks or worn-out seals.
- Rust or corrosion visible around the radiator's core or tanks.
- Reduced coolant level without any obvious cause.
- Fluctuating or consistently high engine temperatures.
Ignoring radiator issues can lead to serious damage. An overheated engine may blow a head gasket, warp cylinder heads, or even cause complete engine failure -- repairs that can cost far more than a timely radiator replacement.
We always recommend inspecting related components -- such as radiator caps, surge tanks, and fan shrouds -- during routine service. Replacing worn accessories alongside the radiator can prevent future system imbalances and extend the lifespan of your cooling setup.
Our team is here to offer expert guidance and access to the right parts to help drivers catch these problems early before small issues turn into major breakdowns.
Choosing the Right Radiator for Your Semi Truck
Picking the right radiator isn't as simple as buying the first option available. Every truck has unique specifications that need to be matched carefully for proper performance. For this reason, our team places a strong focus on accuracy when selecting replacement parts.
The first step is to identify the correct part number or confirm compatibility with your specific truck model. For example, radiators for Peterbilt 389 or 386 models built between 2008 and 2018 each require precise fits. Matching these details allows the new radiator to deliver the proper cooling capacity without causing installation headaches.
When shopping, consider factors like material choice, cooling capacity, and the inclusion of a surge tank or fan shroud. A big truck radiator designed for heavy-duty hauls should have the strength to handle extended engine heat, while a lighter build may work well for regional routes.
Our catalog makes the buying process straightforward. If you're uncertain which radiator your truck requires, our knowledgeable support team can guide you through the options. We take pride in helping drivers and fleet managers find the perfect radiator to keep their trucks running mile after mile.
Radiator Accessories and Related Components
A radiator doesn't operate alone. The entire cooling system relies on multiple parts working together, and if one component fails, the whole system can suffer. At Fitzgerald, we carry so much more than just radiators. With us, you'll find:
- Surge tanks designed to handle pressure fluctuations.
- Radiator caps in different PSI ratings (7 PSI, 15 PSI) to maintain balanced pressure.
- Bushings that provide secure mounting and reduce vibration wear.
- Fan shrouds that guide airflow and improve cooling efficiency.
Replacing these parts during radiator service can prevent future issues. For instance, a worn radiator cap may cause coolant loss or improper pressure, leading to overheating despite having a brand-new radiator. That's why many of our customers choose bundled radiator units that come with these critical accessories included.
We also carry related products like the charge air cooler, which is essential for keeping intake air temperatures within safe operating limits. When paired with a truck radiator, the charge air cooler helps maintain complete cooling system balance, improving efficiency and extending engine life.
Why Buy Radiators from Fitzgerald Truck Parts
When it comes to keeping your trucks on the road, Fitzgerald Truck Parts is a trusted partner. Our customers count on us because we offer more than just a selection of parts -- we deliver value, expertise, and service that make a difference.
Here's what sets us apart:
- Extensive inventory: We stock a wide range of radiators, from heavy duty radiator models to economy builds, covering brands like Roppel, Automann, Detroit Diesel, Paccar, and Freightliner.
- Competitive pricing: Our customers get the benefit of high-quality parts without inflated costs.
- Fast shipping: When a truck is down, every hour matters. We prioritize quick delivery to get you back on the road faster.
- Expert support: Our team understands the demands of commercial diesel vehicles and provides personalized help to match you with the right parts.
We tailor our services to meet the needs of both individual drivers and fleet managers, helping businesses minimize downtime and maximize performance. With Fitzgerald Truck Parts, you can count on consistent availability and the confidence that comes from working with specialists who live and breathe trucks.
A truck radiator isn't just a part -- it's a lifeline for your engine. We supply radiators designed to meet the extreme demands of commercial diesel trucks. From recognizing when it's time for a new radiator to choosing the right replacement and related accessories, we're here to make the process straightforward and stress-free.
Explore our full selection today and experience why drivers nationwide choose Fitzgerald for commercial truck radiators and heavy duty truck components that deliver long-lasting performance.