Spark plug · NGK
Equivalents for the NGK spark plug 3923
NGK 3923 is an automotive spark plug. 109 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…
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What can replace a NGK 3923 spark plug?
The NGK 3923 is interchangeable with: NGK BP8ES, Bosch W 5 D+, Champion N6YC, NGK BP9ES, NGK BPR8E, NGK BPR8ES. 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.