Why Choose This Peterbilt 579 & Kenworth T660 Black Projector Fog Light
This black 9 LED projector fog light is built for truck owners, fleets, and repair shops replacing or upgrading fog lights on select Peterbilt 579, Peterbilt 587, and Kenworth T660 trucks. It combines a 4-1/4″ round aluminum die-cast housing, projector fog light design, integrated LED position lights, and 800 lumen output.
For buyers who want more than a basic replacement fog light, this SKU adds black styling, position light functionality, and verified fitment for popular Peterbilt and Kenworth applications.
Key Features & Benefits
Built for Select Peterbilt and Kenworth Applications
This black projector fog light is listed for the following applications based on the supplied product data:
- 2008-2020 Kenworth T660
- 2012-2021 Peterbilt 579
- 2012-2018 Peterbilt 587
Always confirm truck year, model, side requirement, wiring condition, and mounting area before ordering.
Black 4-1/4″ Round Projector Fog Light Design
The 4-1/4″ round projector fog light uses a black finish for a darker, cleaner appearance. This makes it a strong option for trucks with black accents, blackout-style lighting, custom bumpers, or modernized front-end styling.
Aluminum Die-Cast Housing
The aluminum die-cast housing gives this fog light a rugged structure for heavy-duty truck use. This is a verified housing feature and should be included in the product copy.
Single High Power Primary LED
This fog light uses a single high power primary function LED for the main fog light output. The supplied product data lists the output at 800 lumens.
8 Additional LEDs as Position Lights
This light includes 8 additional LEDs as position lights. The position lights require wiring with a standalone wire lead with male bullet plug, so buyers should plan for that added wiring step if they want the position light function active.
OEM-Style Mounting Bracket
The OEM-style mounting bracket supports a more straightforward installation path for the listed truck applications. Always inspect the existing mounting area and hardware condition before installation.
OE-Style Wiring Harness
This fog light uses an OE-style wiring harness for the main electrical connection. The position light function requires a separate wire lead with male bullet plug, so wiring should be checked carefully before installation.
800 Lumen Output
This fog light is rated at 800 lumens based on the supplied product data. Avoid comparing output against other fog lights unless verified testing data is available for both products.
12V DC Only
This fog light is designed for 12V DC systems only. Do not use this product on a different voltage system unless compatibility is confirmed by the supplier or product documentation.
DOT/SAE, FMVSS 108, and IP67 Rated
The supplied product data lists DOT/SAE, FMVSS 108, and IP67 rating for this fog light. Confirm product labeling and local requirements before installation if compliance is important for your application.
Performance / Compatibility / Use Case
Best Use: Black Projector Fog Light Replacement With Position Lights
This product is best used as a black projector fog light replacement or upgrade for listed Peterbilt and Kenworth applications. It is suited for truck owners who want fog light function plus integrated LED position lights in a round black housing.
Fitment Should Follow the Verified Application List
Use the verified application list when publishing this product:
- 2008-2020 Kenworth T660
- 2012-2021 Peterbilt 579
- 2012-2018 Peterbilt 587
Do not assume fitment beyond those applications unless confirmed by supplier data.
Different From the 18 LED Version
This 9 LED version uses a single high power primary function LED with 8 additional LEDs as position lights and is 12V DC only. The 18 LED version uses 6 high power CREE-type LEDs with 12 additional position light LEDs and may have different voltage compatibility, fitment notes, and ratings depending on the exact SKU.
Installation / Fitment / Technical Details
Installation depends on your truck year, model, side, wiring condition, mounting area, and whether the position light function will be connected. The fog light uses an OE-style wiring harness for the main connection, while the position lights require a standalone wire lead with male bullet plug.
Before ordering or installing, check:
- Truck year, make, and model
- Driver side or passenger side replacement needs
- Whether you need one light or a pair
- Existing mounting bracket area
- Existing wiring harness condition
- Position light wiring requirement
- Final fog light aim after installation
- 12V DC system compatibility
Wiring color code based on the supplied product data:
- Yellow = Fog positive
- Brown = Position Light positive
- Blue = Ground negative
The position lights require wiring with a standalone wire lead with male bullet plug.
Build Quality / Materials / Warranty / Trust Signals
This black 9 LED projector fog light includes a 4-1/4″ round aluminum die-cast housing, single high power primary LED, 8 additional position light LEDs, OEM-style mounting bracket, OE-style wiring harness, standalone position light wire lead with male bullet plug, 800 lumen output, 12V DC operation, DOT/SAE and FMVSS 108 listing information, IP67 rating, and 1-year warranty based on the supplied product data.
Check the product listing or contact BTS Lighting before ordering if you need exact item number, package quantity, side confirmation, or hardware details.
What’s Included
- Black 9 LED projector fog light with LED position lights
- OEM-style mounting bracket
- OE-style wiring harness
- Standalone position light wire lead with male bullet plug
Package contents beyond the listed light, bracket, harness, and position light lead are not confirmed. Check the product listing or contact BTS Lighting if you need to confirm hardware, instructions, or additional wiring parts.
Frequently Asked Questions
What trucks does this black projector fog light fit?
This fog light is verified for 2008-2020 Kenworth T660, 2012-2021 Peterbilt 579, and 2012-2018 Peterbilt 587 trucks based on the supplied application data. Confirm your truck year, model, side, and wiring setup before ordering.
Is this fog light for Peterbilt 579 trucks?
Yes, this fog light is listed for 2012-2021 Peterbilt 579 trucks based on the supplied application data. Always confirm side selection and quantity before ordering.
Is this fog light for Kenworth T660 trucks?
Yes, this fog light is listed for 2008-2020 Kenworth T660 trucks based on the supplied application data. Verify your truck’s year, mounting area, and wiring before installation.
Is this a 9 LED fog light?
Yes, this product uses a single high power primary function LED with 8 additional LEDs as position lights. That gives it 9 total LEDs based on the supplied product data.
What are the 8 additional LEDs for?
The 8 additional LEDs are used as position lights. The position lights require wiring with a standalone wire lead with male bullet plug.
What is the lumen rating?
This fog light is rated at 800 lumens based on the supplied product data. Avoid comparing it to other fog lights unless verified test data is available.
Does this fog light work with 12V or 24V systems?
This fog light is listed for 12V DC systems only. Do not use it on 24V systems unless compatibility is confirmed by supplier documentation.
Does this fog light require extra wiring?
The main fog light uses an OE-style wiring harness, while the position lights require a standalone wire lead with male bullet plug. Plan for that extra wiring step if you want the position light function active.
What is the wiring color code?
The supplied wiring color code is Yellow for Fog positive, Brown for Position Light positive, and Blue for Ground negative. Always verify wiring before final installation.
Is this fog light DOT/SAE, FMVSS, or IP rated?
Yes, the supplied product data lists DOT/SAE, FMVSS 108, and IP67 rating for this fog light. Confirm product labeling and local requirements before installation if compliance is important.


















