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.


Orders for Alaska, Hawaii, and Puerto Rico please call 734.351.5365!

Estimated Shipping Varies



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.

Additional information

Weight 5 lbs
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