Spark plug · NGK
Equivalents for the NGK spark plug 3720
Meet the NGK 3720 spark plug. All its 145 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
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What can replace a NGK 3720 spark plug?
The NGK 3720 is interchangeable with: NGK BCP6E-11, Bosch FR 7 D+X, Champion OE176, NGK BKR5ES11, NGK BCPR6E-11, NGK BKR5EYA11. 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.