Peterbilt 359 Radiators

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.