Equivalents for the Motorcraft spark plug AT42
Meet the Motorcraft AT42 spark plug : thread 14 mm, reach 9.5 mm, tightening torque fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour), heat range very hot. All its 949 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
Technical information Motorcraft AT42 spark plug
- Torque
- fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)
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949 equivalents compatible with the Motorcraft AT42 spark plug



















































































































































































































































































































































































































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No equivalent for this brand selection.
What can replace a Motorcraft AT42 spark plug?
The Motorcraft AT42 is interchangeable with: Bosch H6B, Champion H8, Denso W14, Bosch W5E, Bosch W7E, Bosch W7F. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Motorcraft AT42?
Thread 14 mm, Reach 9.5 mm, Heat range Very hot, 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.