2017–2025 L5P Duramax 6.6L Diesel Fuel Rail Pressure Sensor Genuine GM 12686809
2017–2025 L5P Duramax 6.6L Diesel Fuel Rail Pressure Sensor Genuine GM 12686809 is backordered and will ship as soon as it is back in stock.
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Product Care information
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
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.
2017–2025 L5P Duramax 6.6L Diesel Fuel Rail Pressure Sensor Genuine...
Description
Description
If you’re experiencing hard starts, sluggish throttle response, reduced power, or fault codes on your L5P Duramax, the culprit is often a failing or misreading fuel rail pressure sensor. The GM 12686809 sensor is a direct OEM replacement designed to restore accurate fuel pressure readings to the ECM and resolve drivability issues.
Common Symptoms of a Faulty Sensor:
- Hard starts or long crank times
- Poor fuel economy
- Check engine light with fuel pressure DTCs
- Limp mode or reduced power
- Inconsistent throttle or idle issues
This sensor reads high-pressure fuel levels in the rail and sends that data to the ECM, which controls injector timing and flow. Faulty readings can trigger safety limits and poor performance.
Pro Tip: Wiring issues are also common in this circuit. If replacing the sensor doesn’t resolve the issue, inspect or replace the pigtail harness.
Features:
- Genuine OEM-quality fit and function
- Direct bolt-on replacement
- No tuning or modification required
Direct Fit for:
2017–2024 Chevrolet Silverado 2500HD / 3500HD (6.6L L5P Duramax)
2017–2024 GMC Sierra 2500HD / 3500HD (6.6L L5P Duramax)
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