Spark plug · NGK
Equivalents for the NGK spark plug 1731
NGK 1731, a spark plug. 211 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…
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What can replace a NGK 1731 spark plug?
The NGK 1731 is interchangeable with: NGK B2-LM, Bosch W 9 E0, Champion J19LM, NGK BKR5EGP, NGK BCPR5EGP, NGK BKR5EP-11. 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.