89907AH 2" ID x 1 3/4 ID 90 degree hose assembly, This is an OPP Adaptable Hose Product AC1 item number 6 on the

item number 6 on the drawing

Old part number was 40-2090617 and has been superseded to the above new number

This part is very similar to the upper radiator hose used on several different generator  applications one was the Kohler 30kw model 30RZ62 generator

Shop glow plug here

89907AH 2" ID x 1 3/4 ID 90 degree hose assembly, This is an OPP Adaptable Hose Product AC1 item number 6 on the89907AH, 2" ID to 1 3 4" ID 90 degree hose assembly. The short section will be the 2 inch ID end and the 1 3 4" ID end will be the longer section. The long section measures 16 inches from the center of the short section to the end of the long section. The short section measures 7 inches long from the center of the long section to the end of the short section. These types of hose configuration are often needed on older out of production power plants.