These are from D69U catalog, but should be the same as your 7U (though numbers probably have been updated)
Fuel pressure gauge 6B6158 or may be updated to 3H3344..........the face of the gauge changed over the years.
Water temperature 4F8238 or may be updated to 5H2954 a standard 2" diameter gauge with an adapter ring and 4 screws to install it in the housing. Again, the face design changed over the years and ir appears the overall diameter changed as well. I know the oil pressure gauge was updated that way.
There's a whole string of replace by numbers.
7F9084 RPB 3H2906 or 5M1065 = 2H6790 or 3H3080 with 3H2906 equal to a Stewart Warner #44422
4F6220 RPB 4F8238 RPB 7H6947 RPB 9H1262
Both require the 5B9683 four screw hole adapter.
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