Peterbilt 567/579 Engine Parts & Cooling

Frequently Asked Questions About Peterbilt 567/579 Engine Parts & Cooling

What years and engine models are compatible with your Peterbilt 567/579 cooling parts?

Our cooling components are designed for Peterbilt 567 and 579 models from 2013 to present. Most parts fit Cummins ISX15, X15, Paccar MX-13, and Detroit DD13/DD15 engines. However, specific compatibility varies by part - radiators and charge air coolers may have different configurations based on your exact year and engine combination. Always check the product description or contact our team with your OEM to ensure proper fitment.

How difficult is it to install a replacement radiator or charge air cooler myself?

Radiator replacement typically takes 3-5 hours for experienced mechanics and requires basic hand tools, coolant drain equipment, and proper lifting support. You'll need to disconnect coolant hoses, transmission cooler lines (if equipped), and mounting brackets. Charge air coolers can be more complex due to tight clearances and multiple connection points. We recommend having a service manual handy and allowing extra time if you're doing this for the first time. Many customers successfully complete these installations, but professional installation is advisable if you're uncomfortable working with cooling systems.

What's the difference between OEM and aftermarket cooling parts for my 567/579?

OEM parts are manufactured to exact Peterbilt specifications and typically carry warranties of 1-2 years. Aftermarket options from quality suppliers like Dura-Lite, Northern, and Freightliner often feature upgraded materials such as all-aluminum construction versus plastic end tanks, enhanced fin density for better cooling, and competitive 1-3 year warranties. While aftermarket parts may cost 20-40% less than OEM, ensure they meet or exceed OEM cooling capacity ratings for your specific application, especially if you haul heavy loads or operate in extreme temperatures.

Why is my new water pump leaking or making noise after installation?

Common installation issues include improper gasket sealing, incorrect belt tension, or contaminated coolant. Ensure all mating surfaces are clean and flat, use new gaskets with proper sealant where specified, and torque bolts to manufacturer specifications in the correct sequence. Belt tension should be set according to your engine manual - too tight causes premature bearing failure and noise. If problems persist, check for casting defects or verify you received the correct pump variant, as some engines have multiple water pump options depending on accessories and cooling package.

How do I know if I need a standard or heavy-duty cooling package replacement?

Check your door jamb sticker or build sheet for cooling package codes. Heavy-duty packages typically feature larger radiators (1,400+ square inch cores), higher CFM fans, and increased coolant capacity. If you regularly haul 70,000+ pounds, operate in mountainous terrain, or ambient temperatures above 95?F, heavy-duty components are essential. Standard cooling is adequate for typical highway hauling under 65,000 pounds in moderate climates. Upgrading from standard to heavy-duty cooling requires matching all components - radiator, fan clutch, shroud, and sometimes charge air cooler - to work together effectively.