FV FIT VEHICLE PARTS MANUFACTURER LED Front Fender Turn Signal Lights for Peterbilt 579/587 — Direct-Fit, IP67 Weatherproof Pair

Bright, weatherproof LED front fender turn signals that directly replace OEM P54-6147 / P54-1212-100 for Peterbilt 579 (2013+) and 587 (2011–2018).

Upgrade your truck's front-end safety and style with this pair of FV LED fender-mounted turn signal lights. Designed to drop into the original mounting points without drilling or complex rewiring, these lamps deliver instant illumination, durable construction, and a matched left/right set to restore both function and appearance. Built for the demands of long-haul use, they resist moisture, vibration, and UV damage so they remain clear and reliable across seasons and washes.

How do these LEDs improve visibility compared to stock incandescent bulbs?

These LED assemblies light up instantly at high output, giving following drivers faster visual feedback during lane changes and turns. That quicker on/off response compared to incandescent filaments helps reduce reaction lag and improves roadside communication.

• Instant-on LED elements for faster signaling
• Higher luminous efficiency for stronger daytime visibility
• Consistent color and brightness across both sides

Will these fit my Peterbilt 579 or 587 without modification?

Yes — the pair is engineered as a direct aftermarket replacement for OEM numbers P54-6147 and P54-1212-100 (including R variations). Installation is designed to be straightforward with no drilling or advanced rewiring required when matching original connector types.

• Direct fit for Peterbilt 579 (2013–present) and 587 (2011–2018)
• Replaces P54-6147, P54-6147R, P54-1212-100, P54-1212-100R
• Includes both driver and passenger lamps for a symmetrical finish

How durable are these lights in harsh truck conditions?

Constructed with vibration-resistant ABS housing and a UV-treated polycarbonate lens, the lights are built to withstand harsh highway vibration and prolonged sun exposure. They are sealed with high-grade sonic welding and rated IP67, so they hold up to pressure washing and wet weather without internal fogging.

• IP67 weatherproof rating prevents water ingress
• UV-treated lens resists yellowing and cracking
• Reinforced housing tolerates long-haul vibration

What should I know about wiring and illumination levels?

The turn signals use a brighter LED output than body marker lights; if the indicator does not blink when the headlight/marker circuit is on, swap the connections to match high- and low-brightness circuits. This behavior is normal because the LED turn function is intentionally higher output.

• High-brightness turn function versus low-brightness marker circuit
• Simple polarity or connector swap resolves non-blinking situations
• No resistors or complex modules required for typical installations

Who is this for: Truck owners, fleet managers, and maintenance technicians who need a reliable, plug-and-play LED fender turn signal upgrade for Peterbilt 579 and 587 models. This kit suits anyone replacing worn or fogged factory lenses, modernizing a vehicle’s lighting for improved visibility, or restoring a consistent front-end look without lengthy downtime.