Mercruiser Engine Cover labeled "5.7/V8 Alpha One Thunderbolt Ignition/Power Steering" 1986 1987 1988 1989 I'm not sure of all the years Mercruiser had this exact option package as is on the label but the cover fits on any motor Also have the Outdrive Thunderbolt IV Ignition Part # 8F03A V8 22 outdrive trim piston assemblies rams SS prop in like new condition Steering wheel Mercruiser Engine Cover Stainless steel under floor fuel tank fresh water cooling assembly power trim motor assembly and other parts for this series motor combo. This popular package happened to be in a 23' Thompson but was in all the popular mtg'r boats, Sea Ray, Chris Craft, etc PLEASE CHECK OUR OTHER LISTINGS FOR MORE BOAT, AUTOMOTIVE PARTS, MANUALS, LITERATURE, BADGES, etc !