Equivalents for the ACDelco spark plug 438T
Meet the ACDelco 438T spark plug — thread 14 mm, tightening torque cast iron 25–35 N·m · aluminium 25–30 N·m — or 180°–240° (½–⅔ turn), reach 11.2 mm, heat range medium. Browse its 221 equivalents: compatible, interchangeable and replacement spark plugs across NGK, Bosch, Champion, Denso and many more.
Technical information ACDelco 438T spark plug
- Torque
- cast iron 25–35 N·m · aluminium 25–30 N·m — or 180°–240° (½–⅔ turn)
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What can replace a ACDelco 438T spark plug?
The ACDelco 438T is interchangeable with: Bosch W3D, Champion C59, Denso T27-U, Bosch W4CC, Bosch HR8AC, Bosch HR9AC. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the ACDelco 438T?
Thread 14 mm, Reach 11.2 mm, Heat range Medium, Torque cast iron 25–35 N·m · aluminium 25–30 N·m — or 180°–240° (½–⅔ turn)
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.