Mercury & Mariner Outboard Powerhead Bearing Kits
| HP | Year | Wrist Pin Bearing |
Rod Bearing |
Upper Crankshaft Bearing |
Center Main Bearing |
Lower Crankshaft Bearing |
| 50-60 HP 3 Cyl | 1991-2010 | WP-472 | RB-175 | ME-B89 | ME-B63 | B6206 |
| 70-90 HP 3 Cyl Bottom Guided |
1987-1991 | ME-B88 | RB-430 | ME-247 | ME-B43 | B6307 |
| 70-90 HP 3 Cyl Top Guided |
1992-2010 | ME-B91 | RB-430 | ME-247 | ME-B43 | B6307 |
| 100-125 HP 4 Cyl Bottom Guided |
1988-1991 | ME-B88 | RB-430 | ME-247 | ME-B43 | B6307 |
| 100-125 HP 4 Cyl Top Guided |
1992-2005 | ME-B91 | RB-430 | ME-247 | ME-B43 | B6307 |
| 135/150 HP V6 2.0L |
1983-1990 | ME-B77 | RB-175 | B6308 | ||
| 135/150 HP V6 2.0L |
1992-2001 | ME-B75 | RB-175 | ME-B57 | ME-B79 | B6308 |
| 150XR4 175/200 HP 2.4L V6 |
1983-1990 | ME-B77 | RB-175 | B6308 | ||
| 150EFI-200 2.5L V6 |
1991-2010 | ME-B75 | RB-175 | ME-B57 | ME-B79 | B6308 |
| 225/250 HP 3.0L V6 |
1994-2010 | ME-B88 | RB-430 | ME-B67 | ME-B62 | B6308 |
