Equivalents for the First Line spark plug FGP139
Meet the First Line FGP139 spark plug — reach 15.2–19.0 mm, heat range very hot. Compare its 53 equivalents and find the cheapest compatible plug: NGK, Bosch, Champion, Denso and more.
Technical information First Line FGP139 spark plug
- Resistor
- no
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What can replace a First Line FGP139 spark plug?
The First Line FGP139 is interchangeable with: Champion W634, Brisk S358, Valeo C28P, Champion GX70, Champion SR71, Champion SX70. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the First Line FGP139?
Reach 15.2–19.0 mm, Heat range Very hot, Resistor no, Seat Flat (gasket)
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.