Upgrade your LLY Duramax with the DTech DT660038 Injector Line, designed specifically for cylinders 4 & 5. This high-quality, direct-fit replacement ensures optimal performance and reliability. Each line is thoroughly inspected to meet OEM standards, offering a perfect fit and easy installation. Ideal for replacing damaged lines or enhancing your current system, the DT660038 provides both durability and efficiency. Trust DTech for a seamless upgrade and maintain your engine's peak performance.

Key Features:

• Direct-fit for LLY Duramax cylinders 4 & 5
• OEM-quality construction for superior durability
• Easy installation with a precise fit
• Eliminates injector contamination and improves performance