The role of the ignition coil: Ignition system commonly used non-contact ignition system The principle is: the dc low voltage inverter, voltage doubling rectifying, into a dc high voltage, and then by controlling the high voltage interruption through the ignition coil primary, secondary induction in ignition coil high pressure (typically around 20 kv), drive the discharge spark plug ignition. Part Number:H3T024 MD155852 Fitment for: 1993-1994 for 1.8L 1992-1994 1.8L 1990-1994 for Eclipse 1.8L 1994 for LRV 1.8L 1991-1994 1.8L 1993-1996 for 1.8L 1995-1996 Eagle Summit 1.5L 1992-1994 Eagle Summit 1.8L 1993-1994 Eagle 1.8L Material:plastic colour:Black Package Contents: 1 x Ignition Coil Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.