201-46300 Fuel pipe assembly, used on the TS/TR series engines single cylinder only. This hose goes from the fuel filter to the injection pump.
Make sure you order the proper fittings on the end that attaches to the fuel filter, these fittings are different then the ones sold in the USA. These will be part number 202-42370 and 601-38360, union and an olive.
This will be item number 13 in the Lister Petter drawing.