Includes all gaskets, seals, bearings, gears and shafts for the lower unit. Fits most 3 cylinder, 4 stroke Mercury/Mariner. 30-50 HP with 4.250" dia. "Bigfoot" gearcase. 1997 - 2001 20" driveshaft with 13 splines (spline dia. = .873"). 2.33:1 ratio (13/30 tooth count).
COMPLETE KIT 20" Fits Mercury Repair Kit 91-205-906K