Equivalents for the Standard spark plug W668
The Standard W668 spark plug — heat range medium, reach 15.2–19.0 mm. All its 136 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
Technical information Standard W668 spark plug
- Resistor
- no
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What can replace a Standard W668 spark plug?
The Standard W668 is interchangeable with: Bosch GLP227, Champion CH401, Denso DG602, Bosch GLP276, Champion CH806, Champion CH806002. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Standard W668?
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.