Spark Plug Champion RS12YC 3.OLX

Mercruiser Models:

3.0 FROM 0L010042 - 4, 181CID
3.0 LX - 4, 181 CID
470, 165, 170, 485, 488, 180, 190, - 4, 224 CID
3.7L, 3.7LX, - 4, 224 CID
140, 150, 160, - 4, 224 CID

4.3 GEN+ FROM 0L010065 - V6, 262 CID
4.3LL EFI GEN+ FROM 0L012009- V6, 262 CID
4.3LH GEN+ FROM 0L010044 - V6, 262 CID
4.3LX GEN+ 0F803000-0L000000  - V6, 262 CID
4.3LXH GEN+ 0F803000-0L000000 - V6, 262 CID

190 - V8 283, 327, 305, 350 CID

225 FROM 2278647 - V8 283, 327, 305, 350 CID

350 Mag EFI GEN+ FROM 0F800500 - V8
350 Mag MPI GEN+ FROM 0F602000 - V8

377 Scorpion FROM 0L416146 - V8 283, 327, 305, 350 CID
5.0L MPI - V8 283, 327, 305, 350 CID

5.0L GEN+ 0L015751 - V8 283, 327, 305, 350 CID
5.0L EFI GEN+ 0L012052 - V8 283, 327, 305, 350 CID

5.7L GEN+ FROM 0L010037 - V8 283, 327, 305, 350 CID
5.7L EFI GEN+ FROM 0L010035 - V8 283, 327, 305, 350 CID

5.7LX EFI GEN+ - V8 283, 327, 305, 350 CID

7.4L MPI (L29) FROM 0L010003 - V8 427, 454 & 482 CID