Anyone know where I can buy a temperature gauge for a 1979 J/30 with a Yanmar 2QM15? I installed a brand new sending unit. Just need a new gauge.

The part number should be Temp Gage VDO Ocean Series 3101103.

Engine details are below:

Yanmar
Model. 2QM15
14.Hp@3000
Prop 1400 rpm
2.14 reduction
Sr number. N2336
Block no. 84702