Equivalents for the Standard spark plug W666
The Standard W666 spark plug with reach 15.2–19.0 mm, heat range hot. Here are its 118 cross-references: equivalent, compatible and replacement plugs from NGK, Bosch, Champion, Denso and other makers.
Technical information Standard W666 spark plug
- Resistor
- no
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What can replace a Standard W666 spark plug?
The Standard W666 is interchangeable with: Bosch GLP274, Champion CH224, Denso DG170, Bosch GPK-901, Champion CH234, Champion GX151. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Standard W666?
Reach 15.2–19.0 mm, Heat range Hot, 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.