Mercury Gearcase Assembly
Fits the 3.0L Mercury Optimax or Pro XS (s/n 1B504989 and above)
Black
1.75 Gear Ratio
12 pinion teeth
MerCruiser OEM |
Shaft (inch) |
Rotation |
1600-880686A43 | 20 | Standard (RH) |
1600-880686A44 | 25 | Standard (RH) |
1600-880686A51 | 30 | Standard (RH) |
1600-880686A52 | 25 | Counter (LH) |
1600-880686A53 | 30 | Counter (LH) |