MerCruiser 75202A1 470 488 190 3.7L 4cyl Timing Chain Tensioner 1976-89 Bushing Couplers it might be a 1956

it might be a 1956 1957 1958 or 1959

so they might be fine

and even more expensive than this whole set

Inner Cover: 304761

Includes Mounting Plate 910631 / 0910631 /

MerCruiser 75202A1 470 488 190 3.7L 4cyl Timing Chain Tensioner 1976-89 Bushing Couplers it might be a 1956Item Details Removed from a 1985 1986 MerCruiser 470 S N A560005 Standard Wear on the top of this like all of these that we deal with Parts Included Timing Chain Tensioner 75202A1 75202 Chain Tensioner Bushing 23 75087 Chain Tensioner Attaching Screw 10 75206 10 881892 Compatibility For the most part it seems these parts were used from 1976 1989 on pretty much all of the 470 models. 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989