Part numbers listed below indicate interchangeable parts. These parts share the same size, parameter, function and compatibility. However, please note that items from different brands may have minor variations.
ALS505 - STANDARD MOTOR PRODUCTS, STANDARD IGNITION, TECHSMART
531179, 531-179 - NAPA, ECHLIN
AC3Z2C204A, AC3Z-2C204-A, AC3Z 2C204-A - FORD
6C3Z2C204BA, 6C3Z-2C204-BA, 6C3Z 2C204-BA - FORD
7C3Z2C204B, 7C3Z 2C204-B, 7C3Z-2C204-B - FORD
5C3Z2C204BA, 5C3Z 2C204-BA, 5C3Z-2C204-BA - FORD