Equivalents for the NGK spark plug 6840
NGK 6840 is an automotive spark plug. Browse its 15 equivalents: compatible, interchangeable and replacement spark plugs across NGK, Bosch, Champion, Denso and many more.
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15 equivalents compatible with the NGK 6840 spark plug
No equivalent for this brand selection.
What can replace a NGK 6840 spark plug?
The NGK 6840 is interchangeable with: NGK PFR7WT, Champion OE209, Denso VKB20, NGK PFR6WTG, NGK PFR7WTG, Beru 14 F-6 DTPR02. 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.