How to find the right Automotive Vehicle Top Clearance Light Assemblies AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Automotive Vehicle Top Clearance Light Assemblies
- When they are required
- Under FMVSS 108, vehicles 80 inches or more in overall width need clearance lamps and a three-lamp identification bar Wide trucks, dually pickups, RVs and trailers must have them; on narrower pickups, cab lights are optional styling.
- Identification lamp spacing
- Three lamps grouped at the vertical centerline, with lamp centers spaced 6 to 12 inches apart; amber at front, red at rear This is the spacing inspectors check, and it decides whether a cab or trailer light kit is legal.
- Mounting footprint
- Match the existing hole spacing, roof contour and gasket shape, or buy a kit made for your cab Pickup cab roof lights are model-specific, and a mismatched base leaks water into the headliner.
- Construction
- Sealed LED with a solid gasket and a separate ground wire Roof lamps sit in direct weather and sun, and leaks and corroded grounds are the main failure modes.
- Lens legality
- Smoked or clear lenses must still carry DOT/SAE markings if the lamps are required on your vehicle Tinted lenses can drop output below the requirement on vehicles 80 inches or wider.
Brands that matter
- Recon: Popular LED cab roof light kits for pickups, often with smoked lens options.
- Anzo: LED cab roof light kits for heavy-duty pickups.
- Truck-Lite: Commercial-grade sealed clearance and identification lamps.
- Grote: Heavy-duty clearance lamps for trucks and trailers.
- Peterson Manufacturing: Trailer and RV clearance lamps, incandescent and LED.
- OEM dealer parts (Motorcraft, Mopar, GM Genuine Parts): Exact-fit roof lamps for factory-equipped pickups.
What to avoid
- Kits without gaskets or with thin foam pads that compress and leak
- Unmarked smoked lenses on vehicles 80 inches or wider
- Drilling a roof for cab lights without a template made for that cab
Questions
Are cab roof lights legal on a regular half-ton pickup?
Generally yes, as long as the color is amber at the front, though they are only required on vehicles 80 inches or wider; local rules on lens tint may vary.