Number Of Pins : 4 -Pin Connector Fuel Mixture Formation : Prechamber Engine Exhaust System : For Rear Muffler Check Original Installed Part Number Before Purchase 724809360 / 724809480 / 724809590 / 6161402760 / 6461400460 / A6161402760 / A6461400460 / A6461400760 / A6461400860 646 140 09 60 / 646 140 19 60 / 646 140 24 60 / 646 140 27 60 / A6461400960 / A6461401760 / A6461401960 / A6461402360 68165978AA / 710023D / 7353D / 7389D / A6461402760 / 6461400760 / 6461400860 / 6461400960 / 6461401760 6461401960 / 6461402360 / 6461402460 / 6461402760 / 7625D / A 646 140 09 60 / A 646 140 19 60 A 646 140 24 60 / A 646 140 27 60 / A6461402460 Mercedes-Benz C-Class Coupe (Cl203) Mercedes-Benz C-Class T-Model (S203) Mercedes-Benz E-Class T-Model (S211) Mercedes-Benz Vito / Mixto Van (W639) Merc