Equivalents for the General Motors spark plug PM166
General Motors PM166 is a spark plug featuring heat range hot, reach 15.2–19.0 mm. 187 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…
Technical information General Motors PM166 spark plug
- Resistor
- no
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187 equivalents compatible with the General Motors PM166 spark plug
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No equivalent for this brand selection.
What can replace a General Motors PM166 spark plug?
The General Motors PM166 is interchangeable with: Bosch GLP034, Champion W560, Denso DG105, Champion CH94, Champion CH162, Champion CH221. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the General Motors PM166?
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.