Finding the right radiator for a heavy-duty semi truck requires considering core material, size, fitment, and cooling efficiency. The following selections focus on full aluminum cores, multi-row designs, and kits that include fans or shrouds to maximize cooling performance in demanding road conditions. This guide compares five highly compatible options for 1960s–2000s American trucks and commercial fleets, with attention to durability and ease of installation.
| Product | Brand | Core Type | Approximate Core Size | Compatibility Highlights |
|---|---|---|---|---|
| ALLOYWORKS CU369 | AW ALLOYWORKS | 4 Row Aluminum | 17″ x 28-1/4″ (core) | 1967–1972 Chevy/GMC C/K truck family |
| Cubauto CC369 | Cubauto | 4 Row Aluminum (With Fans/Shroud) | 17″ x 28-1/4″ (core) | 1967–1972 Chevy/GMC Blazer, C10/C20/C30 family |
| RadBuild CU433 | RadBuild | 4 Row Aluminum | 18.90″ x 25.91″ (core) | 1966–1979 Ford F-Series, Bronco |
| Auto Dynasty Radiator | Auto Dynasty | 2-Row Aluminum Core | Typical 2-Row size (per model shown) | 2008–2015 Kenworth/Peterbilt truck models |
| Eagle Kenworth/W900 Radiator | Eagle | 4 Row Aluminum | 40″ tall core region (per OEM fitment) | Kenworth W900 series and related heavy-duty models |
ALLOYWORKS CU369 Radiator For 1967-1972 Chevy/GMC
The CU369 unit is a four-row aluminum radiator designed for classic Chevy and GMC C/K series pickups and Suburban trucks from 1967 to 1972. Core dimensions are 17″ high by 28-1/4″ wide, with overall height around 19-1/4″ and width 33-7/8″. Inlet is 1-1/2″ on the driver side and the outlet is 1-3/4″ on the passenger side. Built with aircraft-grade AA5052 aluminum, it uses brazed core technology and is 100% welded with no epoxy, undergoing multiple quality checks and pressure testing before delivery.
Key features: direct-fit construction, durable aluminum core, and a leak-tested assembly designed for long service life under demanding road conditions.
Notable considerations
- Exact fitment to 1967–1972 GM trucks may require mounting brackets compatible with the original radiator shroud.
- Compatibility with factory transmission cooler should be verified for specific transmissions.
- Aluminum construction offers reduced weight and improved heat dissipation compared to some oem copper/brass designs.
Cubauto CC369 4 Row Radiator With Shroud Fans
The Cubauto CC369 radiator is a full aluminum 4-row unit that includes two 12-inch fans, a shroud, and a thermostat kit. Core size matches 17″H x 28-1/4″W with an overall footprint of about 18-1/2″H x 33″W x 5.79″T. It targets 1967–1972 Chevy/GMC C10, C20, C30 and related Blazer, Suburban, and Van/Jimmy platforms, delivering enhanced cooling capacity by an estimated 35–45% in practical use thanks to its high-flow design and built-in transmission cooler compatibility.
Key features: all-aluminum AA5052 construction, TIG-welded joints, and a comprehensive kit that reduces installation steps for enthusiasts restoring classic trucks.
Notable considerations
- Shroud-fed fans improve airflow efficiency at idle and under heavy loads.
- Ensure compatibility with your transmission cooler routing when retrofitting older trucks.
RadBuild CU433 Four-Row Aluminum Radiator For Ford F-Series
This RadBuild CU433 radiators fit 1966–1979 Ford F-Series and Bronco trucks with V8 engines. Core measures 18.90″ high by 25.91″ wide, with an overall length of 29.53″ and 5.51″ overall height. Inlet/outlet measures are 1.77″ and 1.97″ respectively, and the unit includes a transmission oil cooler connection. Constructed from AA5052 aircraft aluminum, it is 100% TIG-welded and epoxy-free, designed to deliver enhanced cooling efficiency—up to 30–45% in some installations—and full leak testing during manufacturing.
Key features: downflow architecture, robust aluminum core, and a design that emphasizes reduced weight with improved heat transfer for heavy-duty applications.
Notable considerations
- Proper fitment to Ford F-Series generations will depend on core dimensions and mounting holes alignment.
- The oil cooler compatibility should be checked against your engine and oil-cooling arrangement.
Auto Dynasty Radiator For Kenworth/Peterbilt Trucks
The Auto Dynasty radiator is a factory-style 2-row aluminum design intended for late-model heavy trucks, including Kenworth T880 and Peterbilt 367/357/567 series, as well as other 2008–2015 models. The unit emphasizes a lightweight aluminum core and durable ABS plastic components to withstand long service life in challenging operating conditions. It aims to improve cooling efficiency over stock units while maintaining a straightforward replacement experience.
Key features: modern aluminum construction, compatibility with several high-demand models, and a design that balances weight, durability, and performance.
Notable considerations
- Confirm exact OEM compatibility against your vehicle’s VIN and engine configuration.
- Check for transmission cooler integration and mounting compatibility with existing brackets.
Eagle Truck Radiator For Kenworth W900 Series
The Eagle radiator targets Kenworth W900 heavy-duty trucks (1991–2007) with a four-row design and a 40″ core height range. It is sized for the W900’s tall cooling matrix and connects with the standard inlet/outlet dimensions of the OEM setup. The product specification emphasizes precise OEM fitment and a robust core designed to handle heavy loads and long hauls, maintaining engine temperatures across varied climates and terrains.
Key features: OEM-part-like fitment cues, multi-row aluminum core, and emphasis on durability under demanding highway conditions.
Notable considerations
- Verify exact core dimensions against your truck’s radiator shroud and mounting points.
- Confirm intake/outlet locations align with your radiator hoses without forcing them into tight bends.
Buying Guide: Key Purchase Considerations
- Core material and construction: Full aluminum cores with TIG-welded joints typically offer lighter weight and better heat transfer than copper/brass alternatives, important for heavy-duty use.
- Row density and core size: More rows (4-row) generally boost cooling capacity, but ensure the overall dimensions fit your engine bay and mounting brackets.
- Fitment and compatibility: Always verify model year, make, and exact OEM part numbers or fitment notes. Some radiators are designed for specific fleets (Kenworth/Peterbilt, Ford F-Series, GM trucks) and require matching brackets and hoses.
- Accessories and kits: Radiators that include fans, shrouds, or thermostat kits can simplify installation and improve cooling efficiency, especially in hot climates or heavy-duty operation.
- Transmission cooler integration: Check whether the radiator includes an integrated transmission cooler or has provisions for one, as this affects overall cooling performance and hose routing.
- Durability and testing: Look for units subjected to leak testing and pressure checks in production, and prefer epoxy-free cores for long-term reliability.
- Weight vs. durability: Aluminum radiators provide weight savings and corrosion resistance, but ensure the mounting points and brackets can bear the load in vibration-heavy truck setups.
- Installation considerations: Some units may require additional shrouds, brackets, or re-drilling of mounting holes. Check user reviews or installation guides for common fitment notes.