Frequently Asked Questions About Kenworth T800 Driving Lights

What year models of Kenworth T800 are these driving lights compatible with?

Most aftermarket driving lights for the Kenworth T800 are designed to fit models from 1987 through 2007. However, compatibility can vary based on your specific bumper configuration and whether you have a day cab or sleeper model. Hood-mounted lights typically fit all T800 models within this range, while bumper-mounted options may require specific bracket adapters for pre-1997 models. Always verify your truck's year and bumper style before ordering.

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

Installation typically takes 2-4 hours depending on your experience level and the mounting location. For bumper-mounted lights, you'll need a drill with metal bits (usually 3/8" to 1/2"), wire strippers, electrical connectors, and basic hand tools. Most installations require routing wires through the firewall and connecting to a switched power source. Many drivers recommend using a relay kit to prevent excessive amp draw on your switches. Professional installation usually runs $150-300 if you prefer not to DIY.

What's the difference between LED and halogen driving lights for my T800?

LED driving lights offer 50,000+ hour lifespan compared to 500-1,000 hours for halogen, draw less power (typically 27-45 watts vs 55-100 watts), and provide instant full brightness. However, LEDs cost 2-3 times more upfront. Halogen lights are cheaper to replace and provide better light penetration in heavy fog or snow. Most T800 owners report LEDs are worth the investment for the reduced electrical load and virtually maintenance-free operation.

Will aftermarket driving lights void my warranty or cause DOT compliance issues?

Properly installed auxiliary driving lights that meet SAE/DOT standards won't void your warranty or cause compliance issues. Lights must be aimed correctly (not above horizontal), wired to shut off automatically with high beams in some states, and not exceed local regulations for auxiliary lighting. Most quality driving lights include DOT/SAE approval markings. Check your state's specific requirements, as some limit the number of forward-facing lights or require covers when not in use.

What size and style of driving lights work best for the T800's appearance?

The most popular sizes for T800s are 4-inch round or 4x6-inch rectangular lights for bumper mounting, and 6-7 inch rounds for hood or mirror mounting. Chrome housings remain the top choice for classic T800 styling, though black housings are gaining popularity on newer models. Many drivers prefer matching their light style to their existing headlights - if you have rectangular headlights, rectangular driving lights create a cohesive look. Consider your truck's overall appearance and whether you want a traditional or modern aesthetic.