Equivalents for the Splitfire spark plug SF409C
Splitfire SF409C is an automotive spark plug — thread 14 mm, heat range medium, tightening torque cast iron 25–35 N·m · aluminium 25–30 N·m — or 180°–240° (½–⅔ turn). Browse its 184 equivalents: compatible, interchangeable and replacement spark plugs across NGK, Bosch, Champion, Denso and many more.
Technical information Splitfire SF409C spark plug
- Resistor
- no
- Torque
- cast iron 25–35 N·m · aluminium 25–30 N·m — or 180°–240° (½–⅔ turn)
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What can replace a Splitfire SF409C spark plug?
The Splitfire SF409C is interchangeable with: Bosch W2AS, Champion L4J, Denso W25FN, Bosch W3AC, Bosch W5AC, Bosch W7AC. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Splitfire SF409C?
Thread 14 mm, Heat range Medium, Gap 0.45mm, Resistor no, 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.