Spark plug · NGK
Equivalents for the NGK spark plug 1691
NGK 1691 is a spark plug. Here are its 234 cross-references: equivalent, compatible and replacement plugs from NGK, Bosch, Champion, Denso and other makers.
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What can replace a NGK 1691 spark plug?
The NGK 1691 is interchangeable with: NGK BM 7 F, Bosch FR 7 DP, Champion RC87PYC, NGK BCP6EVX, NGK BKR6EVX, NGK BP 5 ET. 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.