Frequently Asked Questions About Peterbilt 567/579 Radiators

Will these radiators fit my specific Peterbilt 567 or 579 model year?

Our Peterbilt 567/579 radiators are designed to fit model years 2013 and newer. However, compatibility can vary based on your engine type (Cummins ISX15, PACCAR MX-13, or Caterpillar), cooling package specifications, and whether you have standard or extended hood configurations. We recommend checking your VIN or existing radiator part number before ordering. If you're unsure, our team can help verify fitment with your truck's specific details.

What's the difference between aluminum and plastic-tank radiators for my truck?

Aluminum radiators offer superior heat dissipation and durability, typically lasting 8-10 years with proper maintenance. They're more resistant to road vibration and handle pressure fluctuations better. Plastic-tank radiators are generally more affordable upfront but may require replacement sooner, especially in extreme temperature conditions. For heavy-duty applications or frequent long hauls, we typically recommend all-aluminum construction for the best long-term value.

Can I install a new radiator myself, or do I need professional installation?

While radiator replacement is possible for experienced DIY mechanics, it requires draining the cooling system, disconnecting multiple hoses and electrical connections, and properly handling coolant disposal. The job typically takes 3-4 hours and requires basic hand tools plus coolant testing equipment. Many customers find professional installation worthwhile to ensure proper fitment, avoid coolant leaks, and maintain warranty coverage. Installation usually runs between $300-500 at most shops.

How do I know if I need a 2-row, 3-row, or 4-row radiator core?

The number of rows affects cooling capacity. Most standard applications use 2 or 3-row cores, while heavy-haul, vocational, or high-horsepower applications often require 4-row cores. Your current radiator should have a tag indicating core configuration. If you're experiencing overheating issues or have added engine modifications, upgrading to an additional row can help. Keep in mind that more rows mean slightly restricted airflow, so bigger isn't always better for every application.

What warranty coverage comes with these radiators, and what voids it?

Most of our Peterbilt 567/579 radiators come with a 1-2 year manufacturer warranty covering defects in materials and workmanship. Warranty is typically voided by improper installation, running incorrect coolant mixtures, operating with cooling system leaks, or physical damage from road debris. Regular coolant flushes and maintaining proper coolant-to-water ratios (typically 50/50) are essential for warranty protection. Always save your receipt and installation records for warranty claims.