AD41B part.no. 968927 o ring. anyone know the size? (sorry boring thread)

[adhdan]

anyone know the dimensions of the o-ring where the heat exchanger pipe slots into the thermostat housing. part number 968927

If anyone knows thankyou in advance
Dan

 

[dpb]

I believe they were 40 x 3mm or 40 x 3.5mm
I bought both but can't establish which was right! Sorry

 

[adhdan]

I believe they were 40 x 3mm or 40 x 3.5mm
I bought both but can't establish which was right! Sorry

thats great thankyou,