Spark plug · Champion

Equivalents for the Champion spark plug A55C

Champion A55C is an automotive spark plug : heat range hot, thread 12 mm, electrode nickel, tightening torque cast iron 15–25 N·m · aluminium 15–20 N·m — or 180° (½ turn), reach 19.0 mm. Compare its 22 equivalents and find the cheapest compatible plug: NGK, Bosch, Champion, Denso and more.

Technical information Champion A55C spark plug

Tip
standard
Terminal
M4/SAE
Torque
cast iron 15–25 N·m · aluminium 15–20 N·m — or 180° (½ turn)

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What can replace a Champion A55C spark plug?

The Champion A55C is interchangeable with: Champion A55G, Denso X20E, Motorcraft HG1, Champion R54G, Champion OE173/T04, Denso X22E. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the Champion A55C?

Thread 12 mm, Reach 19.0 mm, Heat range Hot, Gap 1.0mm, Electrode Nickel, Resistor no, Seat Flat (gasket), Tip standard, Terminal M4/SAE, Torque cast iron 15–25 N·m · aluminium 15–20 N·m — or 180° (½ turn)

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.