Western Star Flanged Lower Coolant Tube OEM: 20406-3517


Brand: Western Star

Product: Lower Coolant Tube

OEM: 20406-3517

*Make sure to measure from the bottom of the flange to the center of your tube for proper size.


Estimated Shipping 2024/04/25



If your tube is shorter than 15 inches use this tube.

If your tube is longer than 17 inches use this tube: 75-WS3519. 

Finally, if you need a 3-inch in-diameter tube, you will need 75-WS3501, 75-WS3481, or 75-WS3502.

This is an identical replacement part for factory coolant tubes (OEM: 20406-3517). All components are manufactured in the USA from high-quality 304 Stainless Steel. Fits Western Star with Detroit Diesel 60 12L/14L.

  • Tube inlet size: 2-1/2″ Flanged
  • Tube outlet size: 2-1/2″ Beaded
  • Hose beaded: Yes
  • Fitting sizes: 1/2″ NPT
  • Base tube dia. 2-1/2″
  • Material: 304 stainless steel


Note: We make our products in our facility in Michigan, most items are able to ship within 1 - 2 days.

Additional information

Weight 5 lbs
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