Equivalents for the Denso spark plug D 109
Meet the Denso D 109 spark plug featuring tightening torque cast iron 25–35 N·m · aluminium 25–30 N·m — or 180°–240° (½–⅔ turn), thread 14 mm, electrode iridium, heat range medium. Compare its 10 equivalents and find the cheapest compatible plug: NGK, Bosch, Champion, Denso and more.
Technical information Denso D 109 spark plug
- Resistor
- yes
- Torque
- cast iron 25–35 N·m · aluminium 25–30 N·m — or 180°–240° (½–⅔ turn)
Buy this spark plug Denso D 109 — best retailers
Partner links: a purchase made through these links may earn us a commission, at no extra cost to you.
10 equivalents compatible with the Denso D 109 spark plug
No equivalent for this brand selection.
What can replace a Denso D 109 spark plug?
The Denso D 109 is interchangeable with: NGK BR9EQ-14, Denso W 27 EDR, Mazda N203-18-600, Denso W27EDR14, Denso W 27 EDR 14, Denso IRE01-27. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Denso D 109?
Thread 14 mm, Heat range Medium, Gap 1.4mm, Electrode Iridium, 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.