Equivalents for the ACDelco spark plug S121XL
The ACDelco S121XL spark plug with thread 12 mm, tightening torque fonte 15–25 N·m · alu 15–20 N·m — ou 180° (½ tour), reach 19.0 mm, heat range hot. Compare its 182 equivalents and find the cheapest compatible plug: NGK, Bosch, Champion, Denso and more.
Technical information ACDelco S121XL spark plug
- Torque
- fonte 15–25 N·m · alu 15–20 N·m — ou 180° (½ tour)
Buy this spark plug ACDelco S121XL — 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 ACDelco S121XL spark plug?
The ACDelco S121XL is interchangeable with: Bosch D10C, Champion A6, Denso X20E, Bosch X4CC, Bosch X4CS, Bosch X5CC. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the ACDelco S121XL?
Thread 12 mm, Reach 19.0 mm, Heat range Hot, Seat Flat (gasket), Torque fonte 15–25 N·m · alu 15–20 N·m — ou 180° (½ 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.