Frequently Asked Questions About Kenworth T680 Cab Lights

What years and models of Kenworth T680 are these cab lights compatible with?

Our Kenworth T680 cab lights are designed to fit model years 2013 through current production models. They're compatible with both day cab and sleeper configurations, including the 52-inch, 76-inch, and high-roof sleeper models. However, some specialty editions like the T680 Advantage may require different mounting brackets. We recommend checking your VIN or contacting our support team if you have a T680 with custom factory modifications.

How difficult is the installation process, and what tools will I need?

Installation typically takes 1-2 hours per set and requires basic hand tools including a drill with metal bits, wire strippers, crimping tools, and a multimeter. Most cab lights come with pre-drilled mounting holes that align with factory locations, but some aftermarket options may require drilling new holes. The wiring usually connects to your existing marker light circuit. Many customers report successful DIY installation, though professional installation is recommended if you're uncomfortable with electrical work or drilling into your cab.

What's the difference between LED and incandescent cab lights for the T680?

LED cab lights offer several advantages including 50,000+ hour lifespan compared to 2,000-5,000 hours for incandescent, lower power consumption (typically 80% less), and better visibility in all weather conditions. LEDs also generate less heat, reducing lens discoloration over time. While LED options cost more upfront, they eliminate frequent bulb replacements and reduce electrical system load. Incandescent lights remain popular for their warm color temperature and lower initial cost, but require more maintenance.

Are these cab lights DOT approved and compliant with regulations?

All cab lights we carry for the Kenworth T680 meet or exceed DOT FMVSS 108 requirements for clearance and identification lamps. They feature proper photometric output, lens colors (amber for front/side, red for rear), and SAE/DOT markings on the lens. For commercial vehicles over 80 inches wide, five cab lights are federally required. Our lights include proper reflectors and maintain the required visibility angles for legal compliance in all 50 states.

What finishes are available and which holds up best against weather and road conditions?

Kenworth T680 cab lights come in chrome plastic, polished stainless steel, painted steel, and anodized aluminum finishes. Chrome plastic is the most economical but may show pitting after 2-3 years in harsh climates. Stainless steel offers the best long-term durability and corrosion resistance, especially in salt belt states. Painted options should have powder coating for maximum chip resistance. For lens materials, polycarbonate outperforms acrylic in impact resistance and UV stability, maintaining clarity longer in direct sunlight.