Equivalents for the Bosch spark plug HR9BC
Bosch HR9BC, a spark plug with electrode nickel, thread 14 mm, reach 11.2 mm, tightening torque fonte 10–20 N·m · alu 10–20 N·m — ou 180°–240° (½–⅔ tour), heat range very hot. All its 508 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
Technical information Bosch HR9BC spark plug
- Resistor
- yes
- Ground electrodes
- 1
- Torque
- fonte 10–20 N·m · alu 10–20 N·m — ou 180°–240° (½–⅔ tour)
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508 equivalents compatible with the Bosch HR9BC spark plug

























































































































































































































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No equivalent for this brand selection.
What can replace a Bosch HR9BC spark plug?
The Bosch HR9BC is interchangeable with: NGK BPR4FS-15, Bosch H8B, Champion RV9YC, Bosch H9B, Bosch H10B, Bosch H8BC. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Bosch HR9BC?
Thread 14 mm, Reach 11.2 mm, Heat range Very hot, Electrode Nickel, Resistor yes, Seat Tapered, Ground electrodes 1, Torque fonte 10–20 N·m · alu 10–20 N·m — ou 180°–240° (½–⅔ tour)
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.