I am trying to locate a tachometer and sender unit for my Yanmar
I have been told they by Yanmar
dealer that are no longer made. I would like to locate a replacement or equivalent units.
manual lists them with the following Yanmar part numbers:
Sender Unit: 128170-91160
The same manual also lists them as VDO part numbers:
Sender Unit: 340.804/007/007
VDO no longer lists these part numbers either.
From my research
, I think I can use a number of aftermarket Tachs that will take output from magnetic sender units, but I ham having difficulty locating a sender unit.
It seems to have the specifications of:
Metric threads: M18 x 1.5
Number of ring gear
Tachometer frequency: 7350 Hz
Can anyone help me out or suggest how to find replacements
There is also some mention of attaching Tach using the alternator
, but that may require upgrading the alternator
. Any thoughts on that would be welcome also.