Merchant Automotive Fuel Contamination Kit with GM Injectors and GM Fuel Pump L5P| 2020 - 2023

Merchant Automotive Fuel System Contamination Kit – L5P Duramax (2020–2023)

Fuel contamination can quickly cause extensive damage to your Duramax engine—taking out injectors, high-pressure pumps, fuel rails, and lines. The Merchant Automotive Fuel System Contamination Kit for 2020–2023 L5P Duramax trucks is a comprehensive, OEM-quality solution designed to fully restore your fuel system and get your truck back on the road with confidence.

This kit includes all major fuel system components along with every necessary seal, gasket, hose, and fitting needed for a proper and reliable repair. Built to meet or exceed factory specifications, this kit is a critical investment in protecting your engine from the long-term effects of fuel contamination.

Key Features:

Complete fuel system restoration for 2020–2023 L5P Duramax

Includes high-quality OEM or better replacement components

Designed to eliminate contamination-related issues and restore performance

Helps prevent costly long-term engine damage

Backed by Merchant Automotive’s commitment to quality and reliability

Kit Contents (Fits 2020–2023 L5P Duramax):

High Pressure Fuel Injectors (x8)

Fuel Injection Pump

Fuel Injection Fuel Rails – LH & RH

High Pressure Fuel Feed Lines (to Rail and Crossover)

Fuel Injection Fuel Return Pipes – LH & RH

Merchant Automotive Fuel Injector Line Kit

Pipe Assembly – Fuel Feed and Return

Fuel Filter

Low Pressure Diesel Hydrocarbon Injector

Fuel Injection Fuel Return Hoses – Multiple Configurations

All essential gaskets, seals, and hardware for installation, including:

Bolt, Fuel Injector Bracket

Fuel Injection Pump Pulley Nut

Seal, Upper Intake Manifold

Engine Coolant Thermostat Housing Gasket

Thermostat Bypass Pipe Gasket & O-Ring

EGR Coolant Feed Pipe Seal

EGR Cooler Pipe Gasket

EGR Valve Gasket

EGR Pipe Gaskets

Turbo Air Inlet Adapter Seal

Throttle Body Gasket