3TN V 82A BDWM - thermostat housing - No. 28 on your diagram Do you have the same fitting but pipe comes out at 90°?

This is coming up as Pipe Assy B. https://www.lsengineers.co.uk/pipe-assy-b-mp-for-yanmar-3tnv82a-bptb-engine-119802-49620.html