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Pre-1988 Mariner Outboard Spark Plugs (2-Stroke)

Spark Plugs (2-Stroke)

Find spark plugs for your 2-stroke pre-1988 Mariner outboard using the application chart from the Mercury Quicksilver catalog.

Need other parts? If you need parts not listed in the application guide, please see:

Model Serial Code Serial No. Range Standard Plug Manf. Part Standard Plug Mercury Part Supressor Plug Manf. Part Supressor Plug Mercury Part Gap
2A (M) 646 All B6HS 33-82370M 1 BR6HS 33-813472 .024
2B (M) 6A1 000101 - 011600 B6HS 33-82370M 1 BR6HS 33-813472 .024
2B (M) 6A1 011601 & up B5HS 33-84675M BR5HS .024
3.5 (M) 642 00000 - 23740 B7HS 33-82371M BR7HS .024
3.5 (ML) 642 00000 - 41690 B7HS 33-82371M BR7HS .024
3.5 (M) 642 23741 & up B6HS 33-82370M 1 BR6HS 33-813472 .024
3.5 (ML) 642 41691 & up B6HS 33-82370M 1 BR6HS 33-813472 .024
4A (M, ML) 6E0 All B7HS 33-82371M BR7HS .024
5A (M, ML) 661 All B7HS 33-82371M BR7HS .024
5C (M, ML) 6E3 All B7HS 33-82371M BR7HS .024
6C (M, ML) 6H8 All B7HS-10 33-41263M BR7HS-10 .039
6D (M, ML) 6H6 All B7HS-10 33-41263M BR7HS-10 .039
8A (M, ML) 655 All B6HS 33-82370M 1 BR6HS 33-813472 .024
8B (M, ML) 677 All B7HS 33-82371M BR7HS .024
W8 (M, ML) 677 All B7HS 33-82371M BR7HS .024
8 Marathon 677 All B7HS 33-82371M BR7HS .024
K8 (M, ML) 680 All B6HS 33-82370M 1 BR6HS 33-813472 .024
8C (M, ML, MUL) 6G1 All B7HS-10 33-41263M BR7HS-10 .039
9.9C (M) 682 000551 - 032885 B7HS 33-82371M BR7HS .024
9.9C (ML) 682 300826 - 338410 B7HS 33-82371M BR7HS .024
9.9C (E) 682 250101 - 250945 B7HS 33-82371M BR7HS .024
9.9C (EL) 682 550141 - 552315 B7HS 33-82371M BR7HS .024
9.9C (M) 682 032886 & up B7HS-10 33-41263M BR7HS-10 .039
9.9C (ML) 682 338411 & up B7HS-10 33-41263M BR7HS-10 .039
9.9C (E) 682 250946 & up B7HS-10 33-41263M BR7HS-10 .039
9.9C (EL) 682 552316 & up B7HS-10 33-41263M BR7HS-10 .039
15A (M, ML) 651 All B7HS 33-82371M BR7HS .024
15C (M) 684 000101 - 020025 B7HS 33-82371M BR7HS .024
15C (ML) 684 300101 - 316415 B7HS 33-82371M BR7HS .024
15C (E) 684 250101 - 251060 B7HS 33-82371M BR7HS .024
15C (EL) 684 550101 - 551615 B7HS 33-82371M BR7HS .024
15C (M) 684 020026 & up B7HS-10 33-41263M BR7HS-10 .039
15C (ML) 684 316416 & up B7HS-10 33-41263M BR7HS-10 .039
15C (E) 684 251061 & up B7HS-10 33-41263M BR7HS-10 .039
15C (EL) 684 551616 & up B7HS-10 33-41263M BR7HS-10 .039
W15 662 All B7HS 33-82371M BR7HS .024
W15B 684 All B7HS 33-82371M BR7HS .024
W15 (Marathon) (M,ML, MUL) 684 All B7HS-10 33-41263M BR7HS-10 .039
K15 (M, ML) 669 All B6HS 33-82370M 1 BR6HS 33-813472 .024
K15 (M, ML) 6K4 All B7HS-10 33-41263M BR7HS-10 .039
K15 (M, ML) 6M7 All B7HS-10 33-41263M BR7HS-10 .039
20A (M, ML) 653 All B6HS 33-82370M 1 BR6HS 33-813472 .024
20C (M, ML, E, EL) 6A9 All B7HS 33-82371M BR7HS .024
25A (M, ML, E, EL) 648 All B7HS 33-82371M BR7HS .024
25C (M, ML, E, EL) 695 All B7HS 33-82371M BR7HS .024
W25 (M, ML) 648 All B7HS 33-82371M BR7HS .024
W25 (M, ML) 695 All B7HS 33-82371M BR7HS .024
W25 (Marathon) (M, ML) 694 All B7HS 33-82371M BR7HS .024
K25 (M, ML) 6A4 All B7HS 33-82371M BR7HS .024
28 (M, ML, E, EL) 664 All B7HS 33-82371M BR7HS .024
30A (M, ML, E, EL) 689 All B7HS 33-82371M BR7HS .024
W30 (Marathon) (M, ML) 689 All B7HS 33-82371M BR7HS .024
40A (M, ML, E, EL) 676 All B8HS 33-82372M BR8HS .024
40B (M, ML, E, EL) 676 All B8HS 33-82372M BR8HS .024
40C (M, ML, E, EL) 6E9 All B8HS 33-82372M BR8HS .024
W40 (M, ML) 676 All B8HS 33-82372M BR8HS .024
W40 (Marathon) (M, ML) 6F6 All B7HS 33-82371M BR7HS .024
K40 (M, ML) 6F5 All B7HS 33-82371M BR7HS .024
48 (M, ML) 670 All B7HS 33-82371M BR7HS .024
W48 (M,ML) 670 A All B7HS 33-82371M BR7HS .024
55 (M, ML) 663 All B8HS 33-82372M BR8HS .024
55 (E) 663 00000 - 004040 B8HS 33-82372M BR8HS .024
55 (EL) 663 00000 - 315378 B8HS 33-82372M BR8HS .024
55 (E) 663 004041 & up B8HS-10 BR8HS-10 33-824406 8 .039
55 (EL) 663 315379 & up B8HS-10 BR8HS-10 33-824406 8 .039
W55 (ML) 663 All B7HS 33-82371M BR7HS .024
60 (E) 675 000101 - 000780 B8HS 33-82372M BR8HS .024
60 (EL) 675 300101 - 302050 B8HS 33-82372M BR8HS .024
60 (E) 675 000781 & up B8HS-10 BR8HS-10 33-824406 8 .039
60 (EL) 675 302051 & up B8HS-10 BR8HS-10 33-824406 8 .039
60 (E, EL) 6FO All B8HS-10 BR8HS-10 33-824406 8 .039