Spark plug · Harley Davidson

Equivalents for the Harley Davidson spark plug HD4

The Harley Davidson HD4 spark plug with heat range medium, tightening torque fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour), thread 14 mm. Browse its 59 equivalents: compatible, interchangeable and replacement spark plugs across NGK, Bosch, Champion, Denso and many more.

Technical information Harley Davidson HD4 spark plug

Torque
fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)

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What can replace a Harley Davidson HD4 spark plug?

The Harley Davidson HD4 is interchangeable with: Bosch W9AO, Champion H10, Denso L14, Champion H11, Champion H12, Champion H10C. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the Harley Davidson HD4?

Thread 14 mm, Heat range Medium, Resistor no, 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.