Equivalents for the Napa spark plug X971
The Napa X971 spark plug featuring thread 18 mm, reach 10.9 mm, tightening torque fonte 35–45 N·m · alu 35–40 N·m — ou 180°–240° (½–⅔ tour), heat range medium. All its 144 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
Technical information Napa X971 spark plug
- Torque
- fonte 35–45 N·m · alu 35–40 N·m — ou 180°–240° (½–⅔ tour)
Buy this spark plug Napa X971 — best retailers
Partner links: a purchase made through these links may earn us a commission, at no extra cost to you.
What can replace a Napa X971 spark plug?
The Napa X971 is interchangeable with: Bosch WR5, Champion F7Y, Denso M16R-U, Bosch WR4-1, Bosch WR5VX, Bosch FR9BPX. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Napa X971?
Thread 18 mm, Reach 10.9 mm, Heat range Medium, Torque fonte 35–45 N·m · alu 35–40 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.