Help with part number

Hi.
Removed inlet manifold to clean but it's proper full of gunk. Weighing up just buying a new one as seen em on the bay for £20.

But I'm struggling with finding one locally. Part number I can ascertain is HRC2636 and I've seen the on the bay under this number but when I put it into a landrover parts dealer local to me, Island 4x4, it's not recognised.

Does anyone know what else I should be looking it up under as also, they don't seem to have pictures on their list of items for sale either.

Kinda need one by lunchtime tomorrow or a very dramatic cleaning solution.

Thanks all

Any help very much appreciated.

hrc numbers arent part numbers but casting number ,manifold is err3481 and more than £20

Christ. They are more than £20 new.

Anyone in kent flogging a nice clean one?

Anyone?