Equivalents for the ACDelco spark plug 78S
The ACDelco 78S spark plug featuring heat range medium, reach 15.2–19.0 mm. Here are its 24 cross-references: equivalent, compatible and replacement plugs from NGK, Bosch, Champion, Denso and other makers.
Technical information ACDelco 78S spark plug
- Resistor
- no
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24 equivalents compatible with the ACDelco 78S spark plug
No equivalent for this brand selection.
What can replace a ACDelco 78S spark plug?
The ACDelco 78S is interchangeable with: Champion W14, Autolite T5, Motorcraft SP-488, Champion W20, Champion W16Y, Champion W14014. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the ACDelco 78S?
Reach 15.2–19.0 mm, Heat range Medium, Resistor no, Seat Flat (gasket)
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.