This is gas, yours (300SD I assume) takes 5.5 X 12.5 mm I see #107 476 37 26 If you look up 300sd, but it says covers a bunch (part 92 in the diagram) including the gassers.
FUEL PUMP PACKAGE. Fits: 1983 Mercedes 300 SD Sedan | Mercedes-Benz of South Atlanta



Then look up a gasser and get the results I have, but it also says covers a bunch of models including the SD

FUEL PUMP PACKAGE. Fits: 1985 Mercedes 500 SEL Sedan | Mercedes-Benz of South Atlanta

Some show it straight and some show it elbowed, they all say elbow in the part. Mine is straight and easily the larger diameter (see my photo) so I'll go with the gasser listing.

Something seems amiss with the lookup system.


When they say "Chassis:
126032/68P, 126033/68P, 126037/68P, 126120/68P" what does the '/68P' mean?