Spark PlugCross Reference
NGK 7321
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.
66 matches found
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⚠ Important: Before substituting, confirm: same heat range, matching electrode gap, correct thread reach, and compatible resistor type.
ACDELCO
1 matchesAUTOLITE
3 matchesBERU
4 matchesBOSCH
10 matchesBRISK
6 matchesCARLTON
4 matchesCHAMPION
12 matchesDENSO
8 matchesE3
3 matchesENKER
1 matchesEYQUEM
1 matchesISKRA
1 matchesKAWASAKI
2 matchesLETRIKA
1 matchesLEXUS
1 matchesMOTORCRAFT
1 matchesMTRCRFT PN
1 matchesNGK
1 matchesPAL
1 matchesPROTECNICA
1 matchesTORCH
1 matchesTOYOTA
1 matchesYAMAHA
1 matchesFactory Direct
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