Equivalents for the Bosch spark plug 66
Bosch 66 is an automotive spark plug : reach 15.2–19.0 mm, heat range medium. 71 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…
Technical information Bosch 66 spark plug
- Resistor
- no
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What can replace a Bosch 66 spark plug?
The Bosch 66 is interchangeable with: Bosch CH222, Champion CH222, Denso DG196, Champion CH269, Champion CH222002, Champion CH269002. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Bosch 66?
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.