95 speedster rpm gauge # 278 000 590 where to buy?

[Cable_Guy]

Tested the wiring I have the 12v at the plugs for the rpm gauge so I suspect both are bad.
Having issues finding a replacement online can't find them anywhere.

Part # 278 000 590
Any ideas?

 

[Cable_Guy]

Been looking more online and was wondering if one of these will work thx for the help
http://www.ebay.com/itm/VDO-Viewlin...ash=item2102786bd3:g:ZjAAAOSwsB9V998~&vxp=mtr

http://www.amazon.com/HOTSYSTEM-Uni..._UL160_SR160,160_&refRID=01YWCZV318CHM1HFVJHM

http://www.amazon.com/Dewhel-7-Colo...73750&sr=1-1&keywords=2"++8000+rpm+tachometer

 

[cncsignman]

As long as they are adjustable it will work on 4cyl setting. I've got two eBay tachs in my 96 speedster that I paid 13.0 0 each. Work great!