Spark plug · First Line

Equivalents for the First Line spark plug FGP138

The First Line FGP138 spark plug featuring heat range very hot, thread 12 mm, tightening torque cast iron 15–25 N·m · aluminium 15–20 N·m — or 180° (½ turn). Compare its 40 equivalents and find the cheapest compatible plug: NGK, Bosch, Champion, Denso and more.

Technical information First Line FGP138 spark plug

Torque
cast iron 15–25 N·m · aluminium 15–20 N·m — or 180° (½ turn)

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What can replace a First Line FGP138 spark plug?

The First Line FGP138 is interchangeable with: Champion CH159, Denso DG001, Beru 719MJ, Champion CH174, Champion CH189, Champion CH189002. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the First Line FGP138?

Thread 12 mm, Heat range Very hot, Resistor no, Seat Flat (gasket), 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.