Merchant Automotive Fuel System Contamination Kit - L5P Duramax 2024 - 2025

When diesel fuel contamination occurs, it can cause severe damage to your L5P Duramax's fuel system - including injectors, pumps, fuel rails, and return lines - leading to poor performance, misfires, or complete failure. The Merchant Automotive Fuel System Contamination Kit offers a complete, OEM-quality solution for restoring the fuel system and preventing long-term damage after a contamination event.

Engineered for 2024 - 2025 L5P Duramax trucks, this comprehensive kit includes all essential fuel system components along with the necessary gaskets, seals, o-rings, and hardware to ensure a full and proper installation. Whether you're servicing a recent model or updating a prior repair, this kit has you covered with premium-grade components built for long-term reliability.

Kit Features:

Full restoration kit for L5P fuel system contamination repair

Covers model years 2024 through 2025

Includes high-quality OEM or better components

Restores proper fuel delivery and protects against future damage

Reduces downtime and costly repairs by replacing all affected parts at once

Kit Contents (Fits 2024 - 2025 L5P Duramax):

Fuel System Components:

(8) High Pressure Fuel Injectors

Fuel Injection Pump - L5P

High Pressure Fuel Feed Lines (To Rail and Crossover)

Fuel Rails - LH & RH

Fuel Injector Line Kit - L5P Duramax

Fuel Injection Fuel Return Pipes - LH & RH

Fuel Injection Fuel Return Hoses - Multiple locations (LH & RH pipes)

Fuel Feed and Return Pipe Assembly

Fuel Cooler - L5P

Low Pressure Diesel Hydrocarbon Injector

Fuel Filter - Duramax

Seals, Gaskets, and Hardware:

Bolt, Fuel Injector Bracket

Fuel Injection Pump Pulley Nut

Seal, Upper Intake Manifold

Engine Coolant Thermostat Housing Gasket

Thermostat Bypass Pipe Gasket - L5P

Thermostat Bypass Pipe O-ring

Seal, EGR Coolant Feed Pipe

Gasket, EGR Cooler Pipe

Gasket, EGR Pipe (x2)

EGR Valve Gasket - L5P

Seal, Turbo Air Inlet Adapter

Throttle Body Gasket

Core Charge

Details:

• Engine Manufacturer: Duramax
• Liter: 6.6 Liter
• Engine Designation: L5P
• Engine Years: 2024-2026

Applications:

• 2024-2026 Silverado/Sierra 2500HD/3500HD L5P