Can spark plugs of other brand-names be substituted with IRIDIUM POWER?
Our spark plugs are compatible with almost all spark plugs manufactured by other companies.
IRIDIUM POWER spark plugs can replace almost all spark plugs fitted as standard in Japanese and foreign cars. Check for the spark plug you are using in the following table and select the IRIDIUM POWER spark plug that corresponds to it. IRIDIUM POWER plugs are also compatible not only with standard spark plugs but also with high performance and racing spark plugs and can also be used in engines where the required heat range is high, such as in highly tuned engines.
If the spark plug you are using is not in this table, select an IRIDIUM POWER to suit your car from the following table which lists spark plugs by vehicle type.
IRIDIUM POWER Comparative Spark Plug Table
For normal engines, select a spark plug with the same heat range as a standard spark plug. For highly tuned engines, select one with the heat range that suits the tuning level.