Cruise the road in style with Peterbilt 389 Driving Lights. This product line includes amber LED light bars, stainless steel marker lights, and 14-diode double-faced bars for bright, long-lasting illumination. Add modern flair with amber and red LED combos to enhance visibility, safety, and your truck's appearance. Find the perfect driving lights to make your Peterbilt 389 stand out.
Frequently Asked Questions About Peterbilt 389 Driving Lights
Will these driving lights fit my specific year Peterbilt 389, and are there any mounting differences between model years?
Most aftermarket driving lights for the Peterbilt 389 are designed to fit model years 2008 through current production. However, there are slight variations in bumper designs between pre-2015 and post-2015 models that may affect mounting bracket compatibility. Always verify the specific model year range listed for each light kit, and note that some lights require different mounting brackets for chrome versus painted bumpers. If your truck has an aftermarket bumper, you may need universal mounting brackets instead of model-specific ones.
What size and wattage driving lights work best on the 389, and will I need to upgrade my electrical system?
The most popular sizes for Peterbilt 389 driving lights are 4-inch round and 6-inch round, with LED options ranging from 27W to 45W per light being the most common. Standard halogen lights typically run 55W-100W. Most trucks can handle a pair of LED driving lights without electrical upgrades, but adding multiple high-wattage lights or halogen bulbs may require upgrading to a higher amp alternator or adding a relay harness. Always calculate your total amp draw - as a rule of thumb, stay under 20 amps total on your auxiliary light circuit.
How difficult is the installation, and what tools or additional parts will I need?
Installation typically takes 2-4 hours for someone with basic mechanical skills. You'll need standard hand tools, a drill with metal bits for any new mounting holes, wire strippers, and electrical connectors. Most kits include basic wiring, but you may need to purchase additional items like a switch, relay harness, inline fuse holder, and wire loom for a professional installation. The biggest challenge is usually routing wires through the firewall - many installers recommend using existing grommets near the clutch pedal or steering column to avoid drilling new holes.
Which finish options hold up best against road salt, stone chips, and weather?
Powder-coated black and polished stainless steel housings offer the best long-term durability. Chrome-plated lights look great initially but can pit and peel after 2-3 years of heavy use, especially in salt-belt states. Anodized aluminum options provide good corrosion resistance at a lower price point. For lenses, polycarbonate with hard coating outlasts standard plastic or glass in terms of impact resistance. Look for lights with IP67 or IP68 waterproof ratings and sealed connectors to prevent moisture intrusion.
Can I legally run these lights on public roads, and what are the positioning requirements?
Federal regulations allow auxiliary driving lights, but they must be wired to shut off automatically when you switch to low beams. Most states require driving lights to be mounted between 16 and 42 inches from the ground and aimed so the beam pattern doesn't blind oncoming traffic. Many drivers wire them through a separate switch with an indicator light to ensure compliance. Check your state's specific regulations, as some limit the total number of forward-facing lights or require covers when not in use. For off-road or private property use only, these restrictions don't apply.
