Compatible Vehicle - for Mercedes-Benz SL500 5.0L 1996-1998,for Mercedes-Benz S500 5.0L 1996-1999,for Mercedes-Benz S420 4.2L 1996-1999,for Mercedes-Benz E420 4.2L 1997. Replaces OEM Part Numbers - C1216 UF-352 5C1227 0221504001. Premium Quality Material - You'll have an easy time mounting these coils due to their lightweight and winding construction. The copper material ensures maximum power delivery to the spark plugs. They come pre-greased for direct replacement.Superior winding process yields greater wire length control, which means less chance of a breakdown of the wire coating and insulation. Material resists pinholes and cracks that can cause failures.. Function & OEM Fit - OCPTY Ignition Coils are engineered for original equipment and replacement applications.Every component either matches or improves on the OE design to ensure fast and easy installation with superior performance and reliability.The ignition coil acts like a transformer.the ignition coil transforms the electrical energy from the vehicle battery into high voltage, saves it briefly and then emits it as a high voltage current pulse to the spark plug..
