Current Lead Times: In Stock Engines Ship Same or Next Day - Out of Stock: 1-3 Weeks on Most Long Block Engines; 3-5 Days on Heads – *call us for more exact lead times for your specific build
The 6.6L L5P Duramax, found in 2017–2021 Chevy and GMC trucks, is a turbocharged V8 diesel engine built for power and efficiency. With a redesigned fuel system, stronger parts, and a more capable turbocharger, the L5P offers improved performance and towing power. It delivers excellent torque and horsepower, making it perfect for heavy-duty tasks, off-roading, and performance builds. This engine combines advanced tech with proven durability for both work and play.
Need parts or upgrades for your L5P? Explore our selection to get the most out of your Duramax!
Building engines the way the OEM factory should have in the first place.
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