Spark plug · Autolite

Equivalents for the Autolite spark plug 2543

Meet the Autolite 2543 spark plug : tightening torque cast iron 25–35 N·m · aluminium 25–30 N·m — or 180°–240° (½–⅔ turn), heat range medium, thread 14 mm, reach 19.0 mm. Here are its 499 cross-references: equivalent, compatible and replacement plugs from NGK, Bosch, Champion, Denso and other makers.

Technical information Autolite 2543 spark plug

Torque
cast iron 25–35 N·m · aluminium 25–30 N·m — or 180°–240° (½–⅔ turn)

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499 equivalents compatible with the Autolite 2543 spark plug

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What can replace a Autolite 2543 spark plug?

The Autolite 2543 is interchangeable with: NGK TR5-1, Bosch H6D, Champion G15Y, Bosch H6DC, Bosch H6HC, Bosch H7DC. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the Autolite 2543?

Thread 14 mm, Reach 19.0 mm, Heat range Medium, Torque cast iron 25–35 N·m · aluminium 25–30 N·m — or 180°–240° (½–⅔ 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.