OEM Bumper Grille Screen Metal LH - Freightliner Cascadia Obstacle Sensor - 21-28972-001

Keep the Cascadia's forward collision-avoidance system seeing the road with this genuine Freightliner OEM bumper grille screen, left hand. It drops into the left side of the front bumper center opening and shields the forward obstacle detection sensor from rocks, road debris and bug buildup — the exact junk that blankets a sensor face and starts throwing false collision-avoidance warnings and radar faults. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets, truck body shops, and owner-operators nationwide.

Clear Sensor, Quiet Dash: The OEM Bumper Grille Screen Advantage

This is the factory screen, not a universal mesh panel cut down to fit. It is built from metal and finished in Volcano Gray with a plain finish, so a repaired bumper matches the rest of the front end instead of reading as a patch. Because the contour is the OEM contour, the screen seats correctly in the bumper center opening and leaves the sensor sitting exactly where Freightliner put it — which is the whole point of replacing a broken screen instead of running the opening empty.

A sensor that is packed with bugs or blasted by gravel is a sensor that reports faults, and a truck that throws collision-avoidance warnings on a clear afternoon burns driver confidence fast. This is the left-hand half of the pair; it installs together with the right-hand screen, 21-28972-002, and the two of them fully close the bumper center opening. Order this one on its own when a road strike took out the left screen, or both when the opening is wide open. It is a direct replacement for the highly searched Freightliner number 21-28972-001.

Vehicle Fitment & Compatibility

This genuine Freightliner screen is intended for the following commercial application:

• Make/Model: Freightliner New Cascadia (P4), 2018 to 2025
• Requirement: Trucks equipped with a front obstacle detection sensor in the bumper
• Position: Left-hand side of the bumper center opening
• Component Group: Front Bumper / Sensor Protection Screens

Direct Replacement & Cross-Reference Numbers:

This genuine screen serves as a direct replacement for the following part number:

• Freightliner Interchange: 21-28972-001

Technical Specifications

• Component Type: Bumper Grille Screen, Left Hand
• Material: Metal
• Color: Volcano Gray
• Finish: Plain
• Function: Covers the left side of the bumper center opening and protects the obstacle detection sensor
• Pairs With: 21-28972-002 (right-hand screen)
• Brand: Freightliner (Distributed by FleetPro Parts & Tires)