Spark plug · NGK
Equivalents for the NGK spark plug 6509
The NGK 6509 spark plug. 23 equivalents listed: interchangeable and compatible spark plugs across all brands — NGK, Bosch, Champion, Denso…
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23 equivalents compatible with the NGK 6509 spark plug
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What can replace a NGK 6509 spark plug?
The NGK 6509 is interchangeable with: NGK ILTR6B11, Bosch HR 7 MPP302X, Champion CCH9299, NGK ILTR6E11, NGK LTR6IX-11, Champion RES8WYPB4. 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.