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.
UF540, UF-540, UF-540 - STANDARD IMPORT, STANDARD MOTOR PRODUCTS, SMP, STANDARD IGNITION, TECHSMART, FEDERATED
L3G218100B9U, L3G2-18-100B-9U, L3G2-18-100B9U - MAZDA
L3G218100A9U, L3G2-18-100A9U, L3G2-18-100A-9U - MAZDA
L3K918100A, L3K9-18-100A - MAZDA
L3K918100B, L3K9-18-100B - MAZDA
L3G218100A, L3G2-18-100A - MAZDA
L3G218100B, L3G2-18-100B, L3G2-18-100B - MAZDA
L3G218100, L3G2-18-100 - MAZDA