Frequently Asked Questions About Peterbilt 367 Cab Lights

Will these cab lights fit my specific year model Peterbilt 367?

Most aftermarket cab lights for the Peterbilt 367 are designed to fit models from 2007 to present. However, there can be slight variations in mounting hole patterns between early models (2007-2010) and newer versions. We recommend checking your existing mounting holes or contacting us with your VIN to ensure proper fitment. Pre-2007 models may require additional drilling or adapter plates.

What's involved in the installation process, and can I do it myself?

Installation typically takes 2-3 hours and requires basic electrical knowledge. You'll need to drill mounting holes (if not pre-existing), run wiring through the cab roof, and connect to your existing clearance light circuit. Most kits include templates and detailed instructions. Common tools needed include a drill with metal bits, wire strippers, and silicone sealant. Professional installation is recommended if you're uncomfortable with drilling into your cab or working with 12V electrical systems.

What's the difference between LED and incandescent cab lights for my 367?

LED cab lights draw significantly less power (typically 0.1 amps vs 2 amps per light), last 50,000+ hours compared to 2,000 hours for incandescent, and provide brighter, more consistent illumination. While LED options cost more upfront, they eliminate frequent bulb replacements and reduce electrical load. Incandescent lights offer a traditional warm glow some drivers prefer and are less expensive initially, but require regular maintenance.

Are these cab lights DOT compliant, and what about different lens colors?

Quality aftermarket cab lights should meet FMVSS 108 standards for clearance and identification lamps. Amber lenses are required by DOT regulations for front and side-facing lights on vehicles over 80 inches wide. Clear or smoke lenses are popular for show trucks but may not be legal for highway use in all states. Always verify your local regulations before choosing non-amber lenses for street-driven trucks.

How do I prevent water leaks after installing cab lights?

Proper sealing is critical to prevent cab leaks. Use a high-quality silicone sealant (not standard caulk) around each mounting point and wire entry hole. Apply sealant to both the light base gasket and the mounting surface before installation. Many installers also recommend using stainless steel backing plates inside the cab for added stability and better seal compression. Re-check and reapply sealant annually as part of regular maintenance.