The 6.6L LLY Duramax engine (2004.5–2006) delivers strong power and torque, ideal for towing and heavy-duty work. With a turbocharged V8 design and improved fuel system, it offers solid performance and efficiency. The LLY features a reliable turbocharger and better emissions control compared to earlier models, making it a popular choice for both work and performance builds.

Boost your LLY Duramax with premium parts and upgrades today!