Motorola RPM Gauge replacement

[Sea Buzzard]

Motorola RPM Gauge replacement

I have a 1978 Marine Trader with Dual Lehman 120 Diesel engines
On the main helm my Port RPM / HR Gauge died and I am looking to replace it without replacing the senders as otherwise I will need to replace the whole Port side set (Fly and Main)
Anyone here with idea / experience of which RPM gauge I can replace it ?

Pics below are the gauge in trouble

 

[Xsbank]

Did you check the wiring? That one with the auto crimp looks to me like it's about to part ways?

 

[Sea Buzzard]

yes, verified visually and tested electrically ;-( Works

 

[RT Firefly]

Greetings,
Mr. SB. Welcome aboard, if I missed you. We have Motorola gauges as well. The hour meter on one tach' has died. I made inquiries at Lauderdale Speedometer and they said there are no replacements for any Motorola gauges available and they must be replaced complete with new sending unit(s). They cannot, evidently, be repaired.

You might be best the check with them, personally, as I've been known to have "brain farts". https://www.lspeedo.com/