Product Description
Genuine GM 12677004 Fuel Rail Feed Line Tube
Fits 2014+ L83, L86, L8B, and LT1 5.3L & 6.2L Engines
The Genuine GM 12677004 Fuel Rail Feed Line Tube is the factory-engineered stainless steel high-pressure line that connects the high-pressure fuel pump (HPFP) to the distribution block before the fuel rails. Designed for 2014 and newer 5.3L and 6.2L naturally aspirated engines, this line provides a perfect OEM-quality seal and pressure integrity under high operating loads.
This replacement line is highly recommended when performing DOD/AFM delete or camshaft installations, as the original factory line is a one-time-use part that cannot be safely reinstalled once removed. Constructed from corrosion-resistant stainless steel, it ensures long-lasting reliability and leak-free performance for both street and performance applications.
*Will not fit L84, L87, L8T, LT4, or newer LT1 engines than listed below.*
Key Features:
- Genuine GM OEM replacement for HPFP to fuel rail distribution line
- Constructed from corrosion-resistant stainless steel for long-term reliability
- Maintains proper fuel pressure between high-pressure fuel pump and rails
- Ideal for use during DOD/AFM deletes and camshaft swaps
- Factory-engineered for direct fit and perfect sealing under pressure
- Designed for 5.3L and 6.2L naturally aspirated Gen V engines only
- Will not fit supercharged or later model LT variants (L84, L87, L8T, LT4)
Applications Include (5.3L and 6.2L Naturally Aspirated Models Only):
- Cadillac Escalade (2015–2018)
- Chevrolet Camaro (2016–2018)
- Chevrolet Corvette (2014–2019)
- Chevrolet Express 2500 (2018–2021)
- Chevrolet Express 3500 (2018–2021)
- Chevrolet Silverado 1500 (2014–2019)
- Chevrolet Suburban (2015–2020)
- Chevrolet Tahoe (2015–2020)
- GMC Savana 2500 (2018–2021)
- GMC Savana 3500 (2018–2021)
- GMC Sierra 1500 (2014–2018)
- GMC Sierra 1500 Limited (2019)
- GMC Yukon (2015–2020)
- GMC Yukon XL (2015–2020)
