Spark plug · Ford
Equivalents for the Ford spark plug 78 HF 12405 AA
Ford 78 HF 12405 AA is an automotive spark plug. Find its 73 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
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What can replace a Ford 78 HF 12405 AA spark plug?
The Ford 78 HF 12405 AA is interchangeable with: NGK AP6FS, Bosch D 7 BC, Champion F9Y, Bosch D 8 BC, Bosch DR 7 BC, Bosch DR 8 BC. These spark plugs share the same mounting (thread, seat) and heat range.
Cross-references and specifications are provided for guidance only. The wrench size can vary by brand, and some data is inferred from the plug code or an equivalent reference. Always check the vehicle manufacturer's recommendation before buying and fitting.