Equivalents for the Motorcraft spark plug 406
Motorcraft 406 is an automotive spark plug — tightening torque fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour), reach 19.0 mm, thread 14 mm, heat range hot, resistor type (RFI-suppressed). Find its 1000 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
Technical information Motorcraft 406 spark plug
- Resistor
- Yes
- Torque
- fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)
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1000 equivalents compatible with the Motorcraft 406 spark plug


























































































































































































































































































































































































































































































































































































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No equivalent for this brand selection.
What can replace a Motorcraft 406 spark plug?
The Motorcraft 406 is interchangeable with: NGK BKR5E, Bosch F7DC, Champion C9Y, NGK BKR6E, NGK BKR5ES, Bosch F8DC. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Motorcraft 406?
Thread 14 mm, Reach 19.0 mm, Heat range Hot, Resistor Yes, Seat Flat (gasket), Torque fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)
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.