Spark PlugCross Reference
NGK Y-503J
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.
59 matches found
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⚠ Important: Before substituting, confirm: same heat range, matching electrode gap, correct thread reach, and compatible resistor type.
BERU
6 matchesBOSCH
4 matchesBREMI
1 matchesBRISK
1 matchesCHAMPION
9 matchesCITROEN
1 matchesDELPHI
1 matchesDENSO
2 matchesDURER
2 matchesERA
1 matchesEYQUEM
3 matchesFAE
1 matchesHIDRIA
1 matchesHKT
1 matchesKAVO-PARTS
1 matchesKESSEL-SPADA
1 matchesKLAXCAR
1 matchesLUCAS
2 matchesMARELLI
4 matchesMETZGER
1 matchesMEYLE
1 matchesMOTAQUIP
2 matchesNGK
5 matchesPEUGEOT
1 matchesPSA
3 matchesSTELLOX
1 matchesULTRA
1 matchesVALEO
1 matchesFactory Direct
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