Image is for illustration purposes only. Actual part may vary.
WHI6589
This is a side brush seal assembly designed for roll-up doors, commonly found on refrigerated or insulated semi-trailers. The brush seal mounts vertically along the sides of the door frame and creates a sweeping, weather-resistant barrier between the door and the body, helping to maintain interior temperature and keep out dirt, moisture, and debris. Over time, brush bristles can wear down or the vinyl retainer can crack, so you would replace this seal when you notice air leaks, visible damage, or compromised temperature control in the trailer.
Advertised lengths include 90 inch [millsupply.com](https://www.millsupply.com/side-seal-brush-whiting-vinyl-retainer-roll-up-door-6589-90-w6589.php), 100 inch [aurorapartstogo.com](https://www.aurorapartstogo.com/details/whi6589-100) and 108 inch variants [ustrailerparts.com](https://ustrailerparts.com/whiting-side-brush-seal-108/); verify required length for your specific door opening.
Part Number: WHI6589
SEAL, SIDE BRUSH
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
