2004.5-2010 LLY/LBZ/LMM Duramax Leak Rail Assembly (Passenger Side)

Does your original LLY fuel injector lines have rust or corrosion build up. Are the sealing surfaces showing damage? Are you questioning if they will even clean up? We certainly would.
 
 Replacing the fuel injector lines is highly recommended when changing the LLY fuel injectors. The original lines can have rust and corrosion build up near the ends of the lines. Or worse, corrosion build up inside of the line that cannot be seen. If not 100% clean, this contamination will wreak havoc on your new injectors. Debris particles measured in microns is enough to cause premature failure. They can also have damage to the sealing surface which will cause a high pressure fuel leak into the engine oil and you will never see it. Don't risk your new injectors or engine with questionable fuel injector lines and buy a set today!