Let me be a little clearer - sorry. All I need is the tach mechanism, I'm just planning on swapping out the guts. I've been looking at ones listed on ebay and am wondering if all of the 7000 rpm's are basically the same?? Mine redlines at 6000 and many of the W124 and W126's do the same, and it looks like the W126 mount the same to the back plate.

ryan

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RG Newell

1984 300D
1972 250
1986 560SL
1991 300CE