Upgrade Your Peterbilt 579 Lighting & Style
If your factory headlights are faded, outdated, or lacking modern styling, this chrome projection headlight upgrade delivers a noticeable improvement in both appearance and on-road presence. Designed specifically for Peterbilt 579 models, this assembly adds a clean projection beam pattern along with integrated LED position lighting and a dynamic sequential turn signal.
Key Features & Benefits
Projection Headlight Upgrade
Unlike traditional reflector housings, the projector design helps focus and control the beam pattern for improved forward visibility and a more modern look on your truck.
LED Position Lighting (28 LEDs)
Integrated LED position lights provide a bright, crisp accent that enhances visibility and gives your truck a premium, updated appearance—day or night.
Sequential Turn Signal (15 LED Amber)
Features a switchable sequential turn signal that delivers a flowing, modern indicator pattern for increased visibility and a custom look.
Chrome Inner Housing Finish
The chrome interior creates a clean, high-end aesthetic that stands out on both stock and fully customized Peterbilt builds.
Direct Plug-and-Play Connection
Designed to connect directly to the factory wiring harness for straightforward installation with minimal modification required.
Performance, Compatibility & Use Case
- Fits 2012–2021 Peterbilt 579
- Also compatible with 2010–2016 Peterbilt 587
- Ideal for:
- OEM replacement
- Show truck styling upgrades
- Fleet refresh and modernization
Uses standard halogen bulbs:
- Low Beam: H9 (65W)
- High Beam: H1 (55W)
Bulb upgrades may be possible depending on setup.
Installation & Technical Notes
Installation is designed to be straightforward using factory mounting points and connectors.
Important:
- A removable load resistor is pre-installed
- If you experience dimming or improper operation, the resistor may need to be removed depending on your truck’s setup
- Always test functionality before final installation
Professional installation is recommended for best results.
Build Quality & Compliance
- Durable aftermarket construction
- Patented lens design with reflective turn signal diffusers (Patent No. D858,812)
- Designed to improve signal visibility and light distribution
- Complies with DOT / SAE / FMVSS 108 standards
What’s Included
- (1) Projection Headlight Assembly
- Integrated LED position lights
- Integrated sequential turn signal
- Pre-installed removable load resistor
Frequently Asked Questions About Peterbilt 579 Projection Headlights
Will these headlights fit both driver and passenger sides?
No. These are sold as individual units. Be sure to select the correct side (driver or passenger) when ordering.
Will these fit a Peterbilt 587?
Yes. These headlights are also compatible with 2010–2016 Peterbilt 587 models.
Are these plug-and-play?
These are designed to plug into the factory wiring harness. However, depending on your truck setup, minor adjustments or resistor changes may be required.
What type of bulbs do these headlights use?
These headlights use H9 low beam and H1 high beam halogen bulbs.
Can I upgrade the bulbs to LED?
LED upgrades may be possible, but compatibility varies by setup. Check bulb sizing and beam pattern performance before upgrading.
What is a sequential turn signal?
A sequential turn signal creates a flowing light pattern instead of a standard blink, improving visibility and adding a modern appearance.
Why is there a load resistor included?
The resistor helps regulate electrical load and prevent issues like flickering or hyper-flashing. In some setups, it may need to be removed.
Are these headlights DOT approved?
These headlights are designed to meet DOT, SAE, and FMVSS 108 standards.
