My Hotpoint dishwasher has a water leak?

Hi I have a Hotpoint Ultima FDUD4812 diswasher it has a leak from the left hand side of the machine I have removed the top and side panel and it appears to be leaking from a clear plastic part that goes into the main body of the machine is there a seal I can replace? the number on the part is C86 213 11
Thanks
Andy

Andy