Keep your Peterbilt 359 engine cool and running strong with premium aftermarket radiators built to handle the demands of the open road. Whether you're hauling heavy loads or cruising cross-country, a dependable radiator keeps your truck performing at its best—mile after mile.

Why Upgrade Your Peterbilt 359 Radiator?

Over time, radiators can become clogged, corroded, or simply lose efficiency. Upgrading to a new, high-performance radiator can offer major benefits: – Reliable cooling performance to protect your engine from overheating – Better airflow and heat dissipation with multi-row brass and copper cores – Fewer breakdowns and reduced risk of costly engine damage – Direct-fit designs that make installation fast and frustration-free

Built for Durability. Made for the Road

Our aftermarket Peterbilt 359 radiators are made from heavy-duty materials like copper and brass—designed to withstand high heat, vibration, and tough driving conditions. Choose from 4-row, 5-row, or 6-row core designs depending on your truck’s powertrain and cooling needs. You’ll also find: – OEM-style radiators that drop right into place – Core upgrades to improve cooling capacity for high-horsepower applications – Corrosion-resistant finishes for long-lasting reliability

Protect Your Engine. Drive with Confidence.

Your radiator plays a critical role in regulating your engine temperature and preventing overheating. A high-quality replacement helps maintain fuel efficiency, engine longevity, and uptime. Whether you’re doing a full restoration on your classic 359 or replacing a failing radiator, we’ve got the parts built to go the distance.