Equivalents for the Standard spark plug W661
The Standard W661 spark plug — heat range hot, reach 15.2–19.0 mm. 106 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…
Technical information Standard W661 spark plug
- Resistor
- no
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What can replace a Standard W661 spark plug?
The Standard W661 is interchangeable with: Bosch GLP234, Champion CH252, Denso DG117, Champion GJ94TO, Champion CH252002, Champion CH252/002. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Standard W661?
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.