Kenworth T700 Lights

Frequently Asked Questions About Kenworth T700 Lights

What year models of Kenworth T700 are these lights compatible with?

Most aftermarket lights for the Kenworth T700 are designed to fit model years 2008-2017. However, compatibility can vary by specific light type. Headlights typically fit all T700 models within this range, while fog lights and auxiliary lights may have different mounting requirements between early models (2008-2012) and later models (2013-2017). Always verify the specific year range listed for each product, as some manufacturers produce lights for narrower year ranges.

Do I need special tools or professional installation for T700 headlight upgrades?

Basic headlight bulb replacements typically require minimal tools - usually just a Phillips screwdriver and possibly a 10mm socket. However, full headlight assembly replacements or LED conversion kits may require wire splicing, resistor installation, or dashboard warning light bypasses. Many drivers report spending 1-2 hours per side for full assembly replacements. If you're installing HID or LED conversions, you may need to mount ballasts or driver modules, which requires drilling and securing components in the engine compartment.

What's the difference between DOT-approved and off-road LED lights for my T700?

DOT-approved lights meet federal standards for on-highway use, featuring proper beam patterns, intensity limits, and color requirements (white or amber for forward-facing). These are legal for street use and won't blind oncoming traffic. Off-road LED lights typically offer higher lumen output and broader beam patterns but are illegal for highway use in most states. Many T700 owners install off-road lights as auxiliary lighting but wire them to a separate switch to ensure they're only used when appropriate.

Why are my new LED lights causing dashboard warning lights or flickering issues?

The T700's computer system expects a specific electrical draw from halogen bulbs. LED lights draw significantly less power, which can trigger "bulb out" warnings or cause rapid flashing in turn signals. This is resolved by installing load resistors (typically 6-8 ohm for turn signals) or electronic flasher relays designed for LED compatibility. Some premium LED kits include built-in resistors or CANbus adapters specifically designed for the T700's electrical system.

Which brands offer the best durability and light output for T700 applications?

Based on driver feedback, Truck-Lite, PIAA, and Rigid Industries consistently receive high marks for longevity in commercial trucking applications. Truck-Lite's LED headlights are particularly popular for their 5-year warranties and sealed, vibration-resistant construction. For auxiliary lighting, KC HiLites and Baja Designs are frequently mentioned for surviving harsh conditions. Budget options from overseas manufacturers often fail within 6-12 months due to moisture intrusion or vibration damage, making the higher upfront cost of quality brands worthwhile for most commercial operators.