Specs: Alternator, Volt: 12, Amps: 150, Regulator Clock: 6:00, Rotation Direction: Clockwise, Mount Hole ID 1: 9.600mm, Mount Hole 1 Type: Unthreaded, Mount Hole ID 2: 8.500mm, Mount Hole 2 Type: Unthreaded, Mount Hole ID 3: 9.500mm, Mount Hole 3 Type: Unthreaded, Mount Hole 4 Type: Slotted, Mounting Ear Thickness: 2.756", Mounting Ear Thickness: 70mm, Mounting Ear 2 Thickness: 2.756", Mounting Ear 2 Thickness: 70mm, Mounting Ear 3 Thickness: 2.756", Mounting Ear 3 Thickness: 70mm Replaces OEM Numbers: Arrowhead: 400-40167, Lester: 11814, Mercedes: 0009067902, Valeo: 2617417A, FG15T079 Compatible With/Replacement For: Mercedes-Benz C250 Coupe 2012-2015, C250 Sedan 2012-2014, C250 2012-2015, SLK250 Convertible 2012-2015 1-year warranty protects you after your purchase. We're confident that our products will work flawlessly once installed in your vehicle. But in a rare Case that it does not, we'll replace it anytime within one year of your order. If you have a problem, we will take every step to assist you, contact us for a replacement. 100% New Aftermarket Alternator built to meet OEM specifications