Add the Grizzly Air GA502 EGR Cooler to your Mercedes Benz MBE4000 (OE# DDE/EA 4601420679). Grizzly EGR Coolers are made to last and provide proper coolant flow over the failed component. A failed EGR Cooler can cause overheating and damage to critical components in your vehicle. The Grizzly EGR Cooler restores function to your vehicle.