Spark plug · NGK
Equivalents for the NGK spark plug 1223
Meet the NGK 1223 spark plug. Find its 21 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
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21 equivalents compatible with the NGK 1223 spark plug
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What can replace a NGK 1223 spark plug?
The NGK 1223 is interchangeable with: NGK CMR6A, Champion RY4C, Brisk SR14C, NGK CMR7A, NGK CMR7A5, Champion RY4CT10. These spark plugs share the same mounting (thread, seat) and heat range.
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.