Spark plug · Autolite

Equivalents for the Autolite spark plug XP3924

Autolite XP3924, a spark plug : tightening torque cast iron 25–35 N·m · aluminium 25–30 N·m — or 180°–240° (½–⅔ turn), reach 18.5–21.5 mm, thread 14 mm, heat range medium. Find its 474 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.

Technical information Autolite XP3924 spark plug

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

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474 equivalents compatible with the Autolite XP3924 spark plug

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What can replace a Autolite XP3924 spark plug?

The Autolite XP3924 is interchangeable with: NGK BKR7E, Bosch FR7LT, Champion RC9DMC, NGK BCPR6ET, NGK BKR6EQUA, NGK FR5EI. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the Autolite XP3924?

Thread 14 mm, Reach 18.5–21.5 mm, Heat range Medium, Resistor yes, Seat Flat (gasket), 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.