Fleece All Lights On® (FPE-GM-ALO-37) for 2003-2007 Duramax LB7 / LLY / LBZ
$26.20Purchase & earn 26 points!
The Fleece All Lights On® (FPE-GM-ALO-37) is a plug-and-play lighting upgrade for 2003–2007 GM Duramax trucks (LB7, LLY, LBZ) that enables high beams, low beams, and fog lights to operate together for improved nighttime visibility. It installs easily without modifying factory wiring and is ideal for drivers in low-light or rural areas seeking better forward illumination.
The Fleece All Lights On® (FPE-GM-ALO-37) is a simple yet highly effective lighting upgrade designed specifically for 2003-2007 GM Duramax trucks, including the LB7, LLY, and LBZ models. This plug-and-play module allows your vehicle’s high beams, low beams, and fog lights to operate simultaneously when the high beams are activated, significantly improving nighttime visibility and safety. Installation is quick and requires no cutting or splicing of factory wiring, maintaining the integrity of your vehicle’s electrical system. Ideal for drivers who frequently operate in low-light or rural conditions, the Fleece All Lights On® module enhances forward illumination, making it a popular choice among Duramax owners seeking a straightforward lighting enhancement.
| Weight | 1 lbs |
|---|---|
| Dimensions | 3 × 3 × 1 in |
Fitment
- 2003 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
- 2004 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
- 2004.5 GM Silverado/Sierra 2500/3500 6.6L LLY Duramax
- 2005 GM Silverado/Sierra 2500/3500 6.6L LLY Duramax
- 2006 GM Silverado/Sierra 2500/3500 6.6L LLY/LBZ Duramax
- 2007 GM Silverado/Sierra 2500/3500 6.6L LLY/LBZ Duramax (classic body style)
Features
Application
2003 – 2007 GM Classic Full Size Truck platforms including:
- Silverado 1500/2500/3500
- Sierra 1500/2500/3500
2003 – 2006 GM Classic Full Size SUV platforms including:
- Avalanche
- Suburban
- Tahoe
OR if your fuse box is laid out as shown in the installation instructions below:

Installation
1. Remove the relays labeled: FOG LP, HDLP-LOW, DRL, HDLP-HI
2. Lay the GM All Lights On circuit board in the location shown below
3. Reinstall the four relays back into their original location
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