SE106-181 Mercruiser R/MR/Alpha One Gen 1 complete upper unit

$1,399.96

Description

P/N SE106-181 Mercruiser R/MR/Alpha One Gen 1 complete upper unit. For 1976 – 1982 models with 4 cylinder 470 / 485 models and 1986 – 1990 4.3 liter V6. 1.81 / 1.84 gear ratio with a 17-19 tooth count.

Compatible with inline 4 cylinder 3.7 liter motors serial numbers 4208730 to 6225576, and 4.3 liter 185 / 190 horsepower V6 motors serial numbers 6225577 to 0D469858.

includes u-joints and output shaft

*Note – before ordering, please measure your output shaft that goes into the engine. Replacement upper units come with an output shaft that measures 9-9/16 inch. If your shaft is the ‘short style’ which measures 8-1/8 inches, please contact us for availability.