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GM / ACDelco  |  SKU: 12686808 / 12686810

Genuine GM 12686808 / 12686810 Fuel Rail Set & Sensors For 2017-2025 L5P Duramax

$485.61


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

This listing includes both passenger and driver side high pressure fuel rails, complete with factory-installed components. Perfect for complete fuel system service or replacement, this OEM set ensures correct fit, function, and durability.

What’s Included:
- RH (Passenger Side) Fuel Rail – GM 12686808 w/ Fuel Pressure Sensor (12686809)
- LH (Driver Side) Fuel Rail – GM 12686810 w/ Fuel Pressure Relief Valve (12686811)

Features & Benefits:
- Genuine GM OEM parts – exact replacements for factory rails
- Includes pressure sensor (RH) and relief valve (LH) pre-installed
- Ensures proper high-pressure fuel delivery and safe operation
- Built to GM’s strict durability and reliability standards

OEM GM Part Numbers:
RH Fuel Rail: 12686808 (Replaces 12635938, 12678990)
LH Fuel Rail: 12686810

UPCs:
RH Fuel Rail: 193468541809
LH Fuel Rail: 195491281912

Vehicle Fitment:
2017–2025 Chevrolet Silverado 2500HD / 3500HD (6.6L L5P Duramax)
2017–2025 GMC Sierra 2500HD / 3500HD (6.6L L5P Duramax)
2019–2025 Chevrolet / GMC Medium Duty trucks with L5D Duramax

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GM / ACDelco

Genuine GM 12686808 / 12686810 Fuel Rail Set & Sensors For 2017-2025 L5P Duramax

$485.61

This listing includes both passenger and driver side high pressure fuel rails, complete with factory-installed components. Perfect for complete fuel system service or replacement, this OEM set ensures correct fit, function, and durability.

What’s Included:
- RH (Passenger Side) Fuel Rail – GM 12686808 w/ Fuel Pressure Sensor (12686809)
- LH (Driver Side) Fuel Rail – GM 12686810 w/ Fuel Pressure Relief Valve (12686811)

Features & Benefits:
- Genuine GM OEM parts – exact replacements for factory rails
- Includes pressure sensor (RH) and relief valve (LH) pre-installed
- Ensures proper high-pressure fuel delivery and safe operation
- Built to GM’s strict durability and reliability standards

OEM GM Part Numbers:
RH Fuel Rail: 12686808 (Replaces 12635938, 12678990)
LH Fuel Rail: 12686810

UPCs:
RH Fuel Rail: 193468541809
LH Fuel Rail: 195491281912

Vehicle Fitment:
2017–2025 Chevrolet Silverado 2500HD / 3500HD (6.6L L5P Duramax)
2017–2025 GMC Sierra 2500HD / 3500HD (6.6L L5P Duramax)
2019–2025 Chevrolet / GMC Medium Duty trucks with L5D Duramax

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