w201 instrument cluster

[MS 190 2.6]

MY cluster has some issues both cosmeticly and function wise, if I swap it for a good one from a 2.3 will the tach work with my 2.6 engine? would it be very difficult to swap my tach into the new cluster if needed? Seller says they are the same cluster but I would like an unbiased opinion.

thanks in advance for your help, Happy holidays to all!