FREIGHTLINER MERITOR WABCO SmartTrac Stability Control Systems .#400 866 375 0 . ABS-E4 12V/ 4S4M/4X2 XBR/ESC/ATC/PLC  . WABCO 037 45/13. 036610 446 003 752 0 . ABS-E 12V 6S/6M SAE .