Spark plug · ACDelco

Equivalents for the ACDelco spark plug FR4LS

The ACDelco FR4LS spark plug featuring reach 19.0 mm, tightening torque fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour), heat range medium, thread 14 mm. 16 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…

Technical information ACDelco FR4LS spark plug

Resistor
yes
Torque
fonte 25–35 N·m · alu 25–30 N·m — ou 180°–240° (½–⅔ tour)

→ How to read an ACDelco reference

Buy this spark plug ACDelco FR4LS — 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 FR4LS spark plug?

The ACDelco FR4LS is interchangeable with: Champion RC14YC, Newstar K4RTC, Hirih H14K4RTC, Champion RC14YC012, Champion RC14YC/012, Champion RC14YC/051. These spark plugs share the same mounting (thread, seat) and heat range.

What are the specifications of the ACDelco FR4LS?

Thread 14 mm, Reach 19.0 mm, Heat range Medium, Gap 1.5mm, 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.