13539108 AC Delco OEM Fuel Filter/ Water Separator - GMC/Chevy 6.6L Duramax 2017-2024

The All Lights On Module allows the high beams, low beams and fog lamps to all be active simultaneously to brighten the highway when your high-beams are turned on. When your high beams are off your low beams and fog lamps will work as usual.

2017-2024 GM 6.6L Duramax L5P - The L5P's stock setup leads to a ton of soot buildup on the MAP sensor over time. S&B's MAP Sensor Spacer, once installed, significatly decreases the amount of soot buildup.