Yamaguchi Electric Industry Co., Ltd.

Ignition Coil is an induction coil in an automobile's ignition system which transforms the battery's low voltage to the thousands of volts needed to create an electric spark in the spark plugs to ignite the fuel.

Failure Symptoms: misfire, bad fuel consumption or loss of power.

Recommended Replacement: 125,000miles


IGC101A - 1MZFE 99-04
IGC103A - 1NZFE 1NZFXE 00-11
IGC104A - 1ZZFE 2ZZGE 3SGE 3SGTE 00-08
IGC105A - 3RZFE 3RZFE 00-04
IGC106A - 2AZFE 01-14
IGC201A - QG18DE
IGC202A - VQ30DE 00-01 RH
IGC203A - VQ30DE 00 LH
IGC204A - QR25DE 02-06
IGC205A - MR20DE 07-08
IGC601A - 99-10
IGC602A - 01-09
IGC603A - 02-11
IGC604A - 06-11
IGC802A - G16 99-00


An ignition coil consists of a laminated iron core surrounded by two coils of copper wire. Unlike a power transformer, an ignition coil has an open magnetic circuit - the iron core does not form a closed loop around the windings. The energy that is stored in the magnetic field of the core is the energy that is transferred to the spark plug.