Spark PlugCross Reference
NGK 6684
Compare interchangeable spark plugs for {brand} {part}. Check heat range, electrode gap, thread size, and reach before substituting — not all cross-referenced plugs perform the same in every engine.
40 matches found
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⚠ Important: Before substituting, confirm: same heat range, matching electrode gap, correct thread reach, and compatible resistor type.
ASTONMARTIN
1 matchesAUTOLITE
3 matchesBOSCH
7 matchesCHAMPION
4 matchesDENSO
5 matchesINFINITI
1 matchesISKRA
1 matchesLETRIKA
1 matchesMARELLI
1 matchesMERCURY
1 matchesNGK
10 matchesNISSAN
1 matchesSPLITFIRE
1 matchesSUZUKI
1 matchesYAMAHA
2 matchesFactory Direct
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