Product Overview
The World American WA911-20-8855 Heater Core is designed to provide reliable cab heat in Peterbilt 357 and 379 trucks model years 2007–2010. This heater core transfers engine heat into the cab to support heating and defrosting functions. It is commonly used as a direct aftermarket replacement for PACCAR OEM part number 3X011018.
Built for dependable heat transfer and long service life, this heater core restores proper HVAC performance on applicable Peterbilt trucks.
