Product Overview
Replace a damaged or failed fog light on a compatible 2018–2024 Freightliner Cascadia with this silver LED assembly. It reproduces the original-style lens, inner housing and rear housing while providing 800 lumens of LED output.
OE-spec mounting flanges support direct bolt-on installation, and the electrical connector plugs into the compatible existing wiring harness. An integrated adjustment screw allows the beam position to be set after installation.
Driver- and passenger-side assemblies are sold individually.
Key Features & Benefits
800-Lumen LED Output
The integrated LED produces a bright 800-lumen output for the compatible factory fog light position.
Original-Style Design
Reproduces the shape and appearance of the original lens, inner housing and rear housing.
Durable ABS Housing
The molded ABS housing provides lightweight construction and includes OE-spec mounting flanges.
Direct Bolt-On Installation
Installs in the corresponding factory location without requiring custom mounting brackets.
Plug-In Electrical Connection
Connects to the compatible existing fog light wiring harness for a straightforward installation.
Adjustable Beam
Includes an adjustment screw for setting the fog light beam after installation.
Vehicle Compatibility
- 2018–2024 Freightliner Cascadia
- Driver-side replacement: OEM #A66-03653-002
- Passenger-side replacement: OEM #A66-03653-003
- Sold individually
Select the correct side before ordering. Replacing both fog lights requires one driver-side and one passenger-side assembly.
Technical Specifications
- Product type: LED fog light assembly
- Light output: 800 lumens
- Housing material: ABS plastic
- Style: Silver
- Mounting: Direct bolt-on with OE-spec flanges
- Electrical connection: Plugs into compatible existing harness
- Beam adjustment: Adjustment screw included
- Compliance listing: DOT/SAE, FMVSS 108
- Quantity: One fog light
- Warranty: 1 year
Installation
Remove the compatible original fog light, position the replacement on the factory mounting points and connect it to the existing wiring harness. Test the light before completing installation.
Use the adjustment screw to set the beam correctly. Improper aim can reduce useful visibility or create glare for other drivers.
Mounting hardware is not listed as included, so original compatible fasteners may need to be reused.
What’s Included
- 1 × Silver LED Fog Light Assembly
- Integrated LED
- Beam Adjustment Screw
Only one side is included. Select the driver or passenger side when ordering.
Warranty
1-year manufacturer warranty.
Frequently Asked Questions
Which trucks does this fog light fit?
It fits compatible 2018–2024 Freightliner Cascadia trucks.
How bright is the fog light?
The LED fog light is rated at 800 lumens.
Is it sold as a pair?
No. Each fog light is sold individually.
Which OEM number replaces the driver-side light?
The driver-side assembly replaces OEM part number A66-03653-002.
Which OEM number replaces the passenger-side light?
The passenger-side assembly replaces OEM part number A66-03653-003.
Does it connect to the factory wiring?
Yes. It is designed to plug into the compatible existing wiring harness.
Is the beam adjustable?
Yes. An adjustment screw is included for setting the beam position.
Is this fog light DOT compliant?
The manufacturer lists it as DOT/SAE compliant and designed to meet FMVSS 108 requirements.
