Spark PlugCross Reference

NGK 7421

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.

97 matches found

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Cross-reference results

⚠ Important: Before substituting, confirm: same heat range, matching electrode gap, correct thread reach, and compatible resistor type.

ACDELCO

1 matches

CSR4522 total matches

ACTIVE

1 matches

RAX802 total matches

ALLISCHALMERS

3 matches

49073342 total matches 49488942 total matches 90016522 total matches

AUTOLITE

5 matches

255113 total matches XST25576 total matches 24546 total matches XST254DP1 total matches XST255DP1 total matches

BAKER

1 matches

716G12 total matches

BERU

2 matches

14SR-7E10 total matches Z27110 total matches

BOSCH

9 matches

24222964352 total matches 24223572552 total matches WSR8E18 total matches 024222964317 total matches WSR6E17 total matches 02422357258 total matches 02422405828 total matches WSR7E8 total matches 2939181 total matches

BRISK

3 matches

PR1719 total matches 305017 total matches 773062 total matches

CATERPILLAR

8 matches

00994762 total matches 1412672 total matches 8511012 total matches 8N22362 total matches 994762 total matches 9974762 total matches MD8511012 total matches MD9974762 total matches

CHAMPION

6 matches

RCJ871 total matches RCJ8/T1053 total matches 840C52 total matches RCJ8/R0252 total matches 84019 total matches RC8J8 total matches

CLARK

10 matches

4465832 total matches 8902102 total matches 8902192 total matches 8902202 total matches 8902252 total matches 8902362 total matches 8902522 total matches 8902532 total matches 8902652 total matches 8902672 total matches

CROWN

1 matches

380013017022 total matches

DAEWOO

3 matches

8N22362 total matches D1412672 total matches D7006992 total matches

DENSO

7 matches

W16SU137 total matches 067600679196 total matches W20MR-U84 total matches W20M-U67 total matches 067700-322164 total matches 602219 total matches 602512 total matches

E3

2 matches

E3.1221 total matches 77-3061 total matches

FUJI

1 matches

065-01404-702 total matches

HONDA

1 matches

98073-5674416 total matches

HYSTER

4 matches

03600462 total matches 30015882 total matches 30022892 total matches 3600462 total matches

ISKRA

1 matches

FSC50R13 total matches

JOHN DEERE

2 matches

4113202S1 total matches M719391 total matches

KAWASAKI

2 matches

9207020604 total matches E9207020604 total matches

KOMATSU

5 matches

HE0052048002 total matches HE0110256002 total matches HE0110526002 total matches HE4025023142 total matches HE528922 total matches

MITSUBISHI

3 matches

8N22362 total matches 9974762 total matches MD997476B1 total matches

MOTORCRAFT

1 matches

AR7N1 total matches

MTRCRFT PN

1 matches

AR7N44 total matches

NGK

1 matches

385025 total matches

TORCH

1 matches

L6RC24 total matches

TOYOTA

7 matches

0059105493812 total matches 0059110919812 total matches 0059120174812 total matches 0059133687812 total matches 0059155310812 total matches 8009876004712 total matches 8009876005712 total matches

WOLF

2 matches

20003053 total matches 20503243 total matches

YALETOWNE

3 matches

1501124732 total matches 1501124902 total matches 1501124942 total matches

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