United Pacific 36813: LIGHTTRACK amber cab light for Freightliner Cascadia
United Pacific 36813 is a single four-LED amber cab light with a LIGHTTRACK glow design and an amber polycarbonate lens. Its sealed electronics operate on 12V DC. The plastic rear housing has two lead wires, so this version requires wiring.
Fitment and equipment checks
Listed for 2018–2025 Freightliner Cascadia; United Pacific also lists 2008–2017 Cascadia applications. Compare the original lamp and mounting arrangement with OEM references A66-01728-001 and A66-01728-003. Confirm the vehicle-side wiring before installation.
Specifications and package contents
- Part number: 36813
- LEDs and lens: Four amber LEDs; amber polycarbonate lens
- Design: LIGHTTRACK guide-light glow effect
- Voltage: 12V DC
- Connection: Two lead wires; wiring required
- Construction: Epoxy-coated sealed electronics; lens sonically sealed to housing
- Mounting parts: Foam gasket and OE-thread mounting screws included
- Manufacturer marking: DOT/SAE P3
- Package quantity: One light
- Warranty: 10-year warranty listed by BTS
Installation notes
Plan for a wired connection: this light has two lead wires rather than an OE-style plug. Verify the supplied light's connection instructions and the truck's circuit before joining wires. Install the foam gasket and supplied OE-thread screws, then test operation before completing the job.
What is included
One United Pacific 36813 LIGHTTRACK cab light with two lead wires, a foam gasket and OE-thread mounting screws. Order additional individual lights for other roof positions.
Questions about United Pacific 36813
Which Freightliner Cascadia years are listed for LIGHTTRACK 36813?
United Pacific lists 2018–2025 Cascadia and also specifies 2008–2017 Cascadia. Match the original lamp and mounting arrangement with OEM references A66-01728-001 and A66-01728-003.
Is the LIGHTTRACK cab light a plug-in replacement?
Part 36813 has two lead wires and requires wiring. Check the light's supplied connection instructions and the truck's circuit before installation. Choose the separately listed 36812 if you need to compare the OE-style plug version.
What colour is the light, and how many LEDs does it have?
It uses four amber LEDs behind an amber lens. The LIGHTTRACK design creates a guide-light glow effect across the lens.
Is this a single light, and are the gasket and screws included?
The package includes one cab light, a foam gasket and OE-thread mounting screws. It is not a complete multi-light roof set.
What is different between LIGHTTRACK 36813 and cab light 36812?
The 36813 uses four LEDs, a LIGHTTRACK glow design and two lead wires requiring wiring. The 36812 uses two amber SMD LEDs with an OE-style plug. Match the mounting and connection needed for your truck.














