Choose the right aftermarket replacement radiator for your Peterbilt 379 truck. We carry a wide range of direct-fit radiators and radiator mounting components: 4-Row and 5-Row Radiator Cores: More rows effectively mean more cooling power. 5-row cores offer higher capacity for severe-duty trucks and extreme heat conditions. Great for haulers running heavy loads or climbing mountain grades. Copper Brass Radiators: Known for excellent heat transfer and repairability, copper brass radiators are still a go-to choice for many Peterbilt owners who want classic performance and easy serviceability. Radiator Cores: Whether you're rebuilding or replacing, a high-quality radiator core is key to keeping coolant temps in check and air flowing clean through your grille. Radiator Mount Bushing Kits: Rubber or polyurethane bushings protect your radiator from vibrations and allow it to expand and contract with heat extending the life of your core and hoses. Top Tanks & Surge Tanks: Our radiators can be configured with or without an integrated surge tank. These tanks help manage coolant expansion, prevent over-pressurization, and make it easier to monitor coolant levels. Mounting Clips & Hardware: Keep your radiator core securely fastened to the tanks and frame with heavy-duty mounting clips that prevent leaks, rattles, and premature wear. Built for Owner-Operators Who Don t Have Time for Downtime. You don t need fancy bells and whistles you need a radiator that works, fits right, and holds up under pressure. We carry Peterbilt 379 radiators from proven brands like BESTfit and TPHD, trusted by owner-operators and fleets alike. These radiators are designed for easy installation and rock-solid performance whether you're replacing a stock unit or upgrading for better cooling. A failing radiator isn t just an inconvenience it's a threat to your engine, your schedule, and your bottom line. Upgrading to a new Peterbilt 379 radiator means fewer worries, better efficiency, and more confidence on the road. Shop aftermarket replacement radiators today and keep your 379 cool, efficient, and running strong mile after mile.