MerCruiser Pre-Alpha One Gen I 66071 Upper Housing Retainer Spanner NUT Gear 470 Camshaft This is a complete assembly

This is a complete assembly

The Part Number of Cover 510292

For some reason many of the MerCruiser Parts diagrams show the picture of this upper with part number 1547-9412A18

Mercury Part Number 28-20625 Flywheel Keyway for some KE7

Includes steering twist-throttle mesh gears as pictured (this type has a special hole through them for the control wire for the start button)

MerCruiser Pre-Alpha One Gen I 66071 Upper Housing Retainer Spanner NUT Gear 470 Camshaft This is a complete assemblyItem Details MerCruiser Retainer Nut Ring: 66071 Overall good condition This is a stock photo you will receive one in similar condition. Part Numbers Included 66071 Compatibility This will work for all engine configurations from that time period Just a short list below 2. 5L 120hp 4cyl 3. 0L 140hp 4cyl 3. 7L 170hp 470 488 4cyl 4. 3L V6 262 185hp 205hp 5. 0L V8 305 5. 7L V8 350 260hp Purchase with confidence! 1970 1971 1972 1973 1974 1975 1976 1977