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GM / ACDelco  |  SKU: 12686809 & 85518225

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

$199.95


Product Care information

At BackWoods Diesel, we ensure all parts are stored in a clean, dry, and temperature-controlled environment to prevent damage. Our team inspects each part for quality and maintains them according to manufacturer guidelines before shipping.

Delivery and Shipping

At BackWoods Diesel, we prioritize fast and reliable shipping. All orders are carefully packed and dispatched promptly to ensure your parts arrive safely and on time, so you can keep your projects running smoothly without delay.

We deliver top-quality parts with fast, reliable shipping so you can keep your diesel projects moving without missing a beat!

Description

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 vibration

Direct Fit for:
2017–2025 Chevrolet Silverado 2500HD / 3500HD (6.6L L5P Duramax)
2017–2025 GMC Sierra 2500HD / 3500HD (6.6L L5P Duramax)

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GM / ACDelco

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

$199.95

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 vibration

Direct Fit for:
2017–2025 Chevrolet Silverado 2500HD / 3500HD (6.6L L5P Duramax)
2017–2025 GMC Sierra 2500HD / 3500HD (6.6L L5P Duramax)

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