Spark plug · NGK
Equivalents for the NGK spark plug 373
NGK 373 is an automotive spark plug. Here are its 71 cross-references: equivalent, compatible and replacement plugs from NGK, Bosch, Champion, Denso and other makers.
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What can replace a NGK 373 spark plug?
The NGK 373 is interchangeable with: NGK ILFR7H, Bosch FR7KII33X, Champion RC12WYP4, NGK SILFR6A, NGK SILFR6B8, Bosch FR6NII332S. 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.