Western Star Flanged Lower Coolant Tube OEM: 20404-3481

Description Note: If your tube is shorter than 15 inches and has a 2 1/2″ diameter, use this tube: 75-WS3517. If your tube is longer than 17 inches and has a 2 1/2″ diameter, use this tube: 75-WS3519.  Finally, if you need a 3-inch in-diameter tube, you will need this tube, or 75-WS3501, or 75-WS3502. This is an identical replacement part for factory coolant tubes (OEM: 20404-3481). All components are manufactured in the USA from high-quality 304 Stainless Steel. Fits Most Western Star models with Caterpillar 3406E, C15, and C16 Engines. Tube inlet size: 3″ Flanged Tube outlet size: 3″ Beaded Hose beaded: Yes Fitting sizes: 1/2″ NPT Base tube dia. 3″ Material: 304 stainless steel Plugs are sold separately.