Equivalents for the Bosch spark plug 4120
Bosch 4120 is a spark plug — tightening torque fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour), heat range very hot, thread 14 mm, reach 18.5–21.5 mm. 27 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…
Technical information Bosch 4120 spark plug
- Resistor
- yes
- Torque
- fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)
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27 equivalents compatible with the Bosch 4120 spark plug
No equivalent for this brand selection.
What can replace a Bosch 4120 spark plug?
The Bosch 4120 is interchangeable with: Bosch WR9DP, Denso W14EX-ZU, Autolite AP66, Bosch WR9LP, Bosch WR9DP4, Bosch WR9DPX. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Bosch 4120?
Thread 14 mm, Reach 18.5–21.5 mm, Heat range Very hot, Resistor yes, Seat Flat (gasket), Torque fonte 25–35 N·m · alu 25–30 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.