from what I know, that was the OM603.970 used in 90,91 and OM603.971 engine used in 92-94. that is a 3.5 L six cyl.

as far as i know, the 603.970 were used in 300sd(92,93) or s350 (94)

and the 603.971 was put into the 90,91 350sdl

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1984 123.193 372,xxx miles, room for Seven.

1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.