Fits 1983 and newer gm v-6 and v-8 engines with standard cooling requiring a 140 degree thermostat (except hi-performance engine) contains the necessary parts to change the thermostat
Sierra 18-8217 Transom Seal Kit # Sealed Gimbal Bearing
For: R, MR, Alpha I (1983-1990) w/exhaust tube s/n 6225577-0D469858
For: Alpha I SS (1986-1989) w/exhaust tube s/n 0A545004 & Up
