Spark PlugCross Reference
DENSO G121
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.
55 matches found
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⚠ Important: Before substituting, confirm: same heat range, matching electrode gap, correct thread reach, and compatible resistor type.
ASHIKA
1 matchesAUTOMEGA
1 matchesBERU
3 matchesBOSCH
1 matchesBREMI
1 matchesBRISK
1 matchesBSG
1 matchesCHAMPION
2 matchesDELPHI
1 matchesDENSO
1 matchesDURER
1 matchesERA
1 matchesEYQUEM
3 matchesFAE
1 matchesFEBI-BILSTEIN
1 matchesFORD
2 matchesHIDRIA
2 matchesJAPANPARTS
1 matchesJAPKO
1 matchesJP-GROUP
1 matchesKAGER
1 matchesKESSEL-SPADA
1 matchesKLAXCAR
1 matchesMARELLI
4 matchesMASTER-SPORT
1 matchesMAXGEAR
1 matchesMETZGER
1 matchesMEYLE
1 matchesMOTAQUIP
2 matchesMTRCRFT PN
1 matchesNGK
6 matchesSTANDARD
1 matchesSTELLOX
2 matchesSWAG
1 matchesTOPRAN
1 matchesVALEO
1 matchesVEMO
2 matchesFactory Direct
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