Spark plug · NGK
Equivalents for the NGK spark plug 4639
NGK 4639 is a spark plug. Browse its 223 equivalents: compatible, interchangeable and replacement spark plugs across NGK, Bosch, Champion, Denso and many more.
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What can replace a NGK 4639 spark plug?
The NGK 4639 is interchangeable with: NGK BKR6EGP, Bosch FR 7 DPX, Champion RC8WYP4, NGK BCPR6EGP, NGK BKR6EP-11, NGK BCPR6EP-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.