| Mercury Outboard Head Gasket | |||||
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Model |
Cyl. | Serial Number | OE# |
Part # |
 |
| 20hp 73-77 | 2 | 337531- 4709592 | - | - | - |
| 65hp 76-77 | 3 | 4382057- 4571651 | - | - | - |
| 70hp 77-83 | 3 | 4571652- 6428600 | - | - | - |
| 70hp 87-up | 3 | A996142- up | - | - | - |
| 75hp 75-up | 4 | 6432901- up | - | - | - |
| 75hp 90-up | 3 | A996142- up | - | - | - |
| 80hp 69-72 | 4 | 2559001- 3493912 | - | - | - |
| 80hp 78-83 | 4 | 4831999- 6432900 | - | - | - |
| 80hp 87-92 | 3 | A996142- up | - | - | - |
| 85hp 73-87 | 4 | 3493913- 4366801 | - | - | - |
| 85hp 76-78 | 4 | 4366802- 4831998 | - | - | - |
| 90hp 75-86 | 6 inline | 4845301- 5299505 | - | - | - |
| 90hp 87-96 | 3 | A996142- up | - | - | - |
| 100hp 88 & up | 4 | B209468- up | - | - | - |
| 115hp 88 & up | 4 | B209468- up | - | - | - |
| 125hp 94- up | 4 | D283222- up | - | - | - |
| 115hp 75-88 | 6 inline | 3525441- 4855152 | - | - | - |
| 135hp 86-90 | V6 2 liter | A904646- C239552 | 27-96542-1 | 542-1 | |
| 135hp 91- up | V6 | C239553- up | 27-18785-1 | 785-1 | |
| 140hp, 78-81 | 6 inline | 3293234- 3502805 | - | - | - |
| 150hp, 74-78 | 6 inline | 3502806- 4868997 | - | - | - |
| 150hp 78-82 | V6 2 liter | 4868648- 6042945 | 27-79583-1 | 583-1 | |
| 150hp 83-90 | V6 2 liter | 6042946- C239552 | 27-96542-1 | 542-1 | |
| 150hp 91-up | V6 2 liter | C239553-up | 27-18785-1 | 785-1 | |
| 150XR4 88-91 | V6 2.4L | B242885- C239552 | 27-41246-1 | 246-1 | |
| 175hp 76-84 | V6 2 liter | 4301235- 6618750 | 27-79583-1 | 583-1 | |
| 175hp 85-91 | V6 2.4L | 6618751- C239552 | 27-41246-1 | 246-1 | |
| 175hp 92-UP | V6 2.5L | C239553- up | 27-822844-1 | 844-1 | |
| 200hp 78-81 | V6 2.4L | 4839034- 5363917 | 27-41245-1 | 3872 | |
| 200hp 82 | V6 2.4L | 6073192- 6203990 | 27-41246-1 | 246-1 | |
| 200hp 83-up | V6 2.4L | 6203991- up | 27-41246-1 | 246-1 | |
| 200hp 92-up | V6 2.5L | D082000- up | 27-822844-1 | 844-1 | |
| 220hp 87-88 | V6 2.4L | B117316- up | 27-41246-1 | 246-1 | |
| 225hp 80-93 | V6 2.4L | 5628028- D280812 | 27-41245-1 | 3872 | |
| XR6 92-up | V6 2.5L | D082000- up | 27-822844-1 | 844-1 | |
| 2.4L with dowel pins | - | - | 27-41245-1 | 3871 | |
| 260-280HP Hi- Perf offshore | V6 2.5 L EFI | 2.5L High Compression | 844R1 | ||
| 2.5L Very Hish Compression | V6 2.5L | - | - | 844R75 | |
| 200-300 hp 1994 - 99 | V6 3.0L | 8573 | |||