SEI MARINE PRODUCTS- Mercury Mariner Prop Service Kit 11-827614A 4 80 90 115 125 150HP Inline 4 & 6 This prop service kit replaces OE#: 11-827614A 4, includes the thrust washer, and fits 80-150 HP 4 & 6 cylinder 2 stroke Mercury, Mariner, and Force outboard lower units from 1978-1988.