Equivalents for the Denso spark plug D 51
Denso D 51 is an automotive spark plug with electrode iridium, tightening torque cast iron 25–35 N·m · aluminium 25–30 N·m — or 180°–240° (½–⅔ turn), heat range very hot, reach 19.0 mm, thread 14 mm. Compare its 98 equivalents and find the cheapest compatible plug: NGK, Bosch, Champion, Denso and more.
Technical information Denso D 51 spark plug
- 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 Denso D 51 spark plug?
The Denso D 51 is interchangeable with: NGK BPR6ES-11, Bosch W 7 DCX, Champion N 74 C, NGK BUR6EB-11, Bosch WR 7 DCX, Champion RN9YC4. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Denso D 51?
Thread 14 mm, Reach 19.0 mm, Heat range Very hot, Electrode Iridium, 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.