644D - LOADER, FOUR-WHEEL DRIVE ENGINE OIL COOLER 0419 Parts group ENGINE OIL COOLER 0419 ENGINE OIL COOLER 0419 . ENGINE OIL COOLER (ENGINE SERIAL NO. -336698) (6466) [01H08] ENGINE OIL COOLER (ENGINE SERIAL NO. 336699- ) (6466) [01H09] ENGINE OIL COOLER BYPASS VALVE AND HOUSING (ENGINE SERIAL NO. 167389-358750) (SHORT BLOCK SERIAL NO. ENGINE OIL COOLER BYPASS VALVE AND HOUSING (ENGINE SERIAL NO. 358751- ) (SHORT BLOCK SERIAL NO.
