[C320-list] Perkins M30 Thermostat Part Number and Source?

[Christian]

Pinging the list again.

I got my thermostat in today from TA Diesel (Northern Lights M643/673 part
# 145206320).  Imprinted on the thermostat is 75°C (along with Kuzeh 5 K).

I have a Perkins M30 Shop Manual that lists these specs for thermostat:
103-09/10/Perama M25/M30
Type: Wax pellet type
Temperature when starting to open: 69 to 73°C
Temperature when fully open: 82°C
Valve lift (when the water temperature is 82°C): 8.0mm

103 06
Type: Wax pellet type
Temperature when starting to open: 75°C
Temperature when fully open: 90°C
Valve lift (when the water temperature is 82°C): 6mm

Based purely on the imprint of the delivered thermostat of 75°C, it appears
I might have been sent one for a 103 06 Perkins model.  Would this not be
compatible with a M30?

Thanks,
Christian Caperton
1994 C320 "Canuck" #138
Monroe Harbor, Chicago, IL