Genuine GM Fuel Rail Pressure Sensor & Connector Repair Kit for 2017-2025 L5P Duramax

Eliminate guesswork and fix common fuel system issues on your 2017-2025 L5P 6.6L Duramax with this combo kit, featuring a brand new GM fuel rail pressure sensor (12686809) and matching GM pigtail connector (85518225). This kit addresses drivability issues like hard starts, power loss, limp mode, and DTCs often caused by a faulty sensor or worn wiring. Kit Includes:- 1x Fuel Rail Pressure Sensor – GM #12686809 (Replaces 12647909)- 1x Pigtail Wiring Connector – GM #85518225 (Replaces 19300397, 19331705, 19367009) Common Fixes For:- Check engine lights (fuel rail DTCs)- Hard starting or long crank- Fuel system signal faults- Limp mode or throttle inconsistencies- Damaged, brittle, or corroded wiring connectors- Replacing both the sensor and pigtail ensures full restoration of fuel pressure accuracy. Features:- OEM-quality sensor for accurate pressure data- Factory-style pigtail connector with pre-stripped leads- Easy install with crimp or solder- Rated for diesel engine bay heat and vibra