Duramax L5P Gen2 (2024–Present)

The Duramax L5P Gen2 engine takes performance to the next level, offering 470 horsepower at 2,800 rpm and 975 lb-ft of torque at 1,600 rpm. This upgraded engine delivers even more power and efficiency, making it ideal for demanding applications. At Coy’s Diesel, we’re ready to help your L5P Gen2 perform at the top of its game. Our expert technicians provide everything from turbocharger care optimization to precision fuel system servicing, ensuring your engine delivers the power you rely on.

Duramax L5D (2018–Present)

Built specifically for medium-duty trucks like the Chevrolet Silverado MD and International CV, the Duramax L5D is a highly reliable version of the L5P. With 350 horsepower at 2,600 rpm and 700 lb-ft of torque at 1,600 rpm, the L5D prioritizes durability and uptime for commercial use. At Coy’s Diesel, find technicians who can keep your L5D engine running strong. From routine servicing to repairs, we make certain your Duramax L5D delivers the reliability your business depends on.

Duramax L5P (2017–2023)

The Duramax L5P engine brings exceptional power to the table, with 445 horsepower at 2,800 rpm and 910 lb-ft of torque at 1,600 rpm. Known for its robust performance, the L5P offers impressive towing capabilities and overall reliability. With its advanced features, the L5P is built to take on the toughest jobs. Coy’s Diesel provides expert maintenance and repair services for the L5P, including engine diagnostics, fuel system checks, and performance enhancements. We help ensure your L5P engine stays at peak performance for years to come.

Duramax LML (2011–2016)

The Duramax LML raised the bar for power and efficiency, generating an impressive 397 horsepower at 3,000 rpm and 765 lb-ft of torque at 1,600 rpm. There is no doubt that this 6.6L V8 offers incredible performance for heavy-duty trucks. What’s more, the LML’s advanced design cuts emissions while supporting up to 20% biodiesel. At Coy’s Diesel, enjoy total checks and reliable repairs for your LML, from fuel system diagnostics to emission system maintenance. Leave it to us to make sure your GMC or Chevrolet diesel work trucks are ready for every challenge.

Duramax LGH (2010–2016)

Specifically designed for commercial applications, the Duramax LGH engine delivers 260 horsepower at 3,100 rpm and 525 lb-ft of torque at 1,600 rpm. This robust 6.6L V8 is engineered to meet the demands of vehicles like the Chevrolet Express, GMC Savana, and chassis cab models, offering exceptional reliability and durability for heavy-duty use. At Coy’s Diesel, we provide expert care for your LGH, offering services like fuel system diagnostics, DPF cleaning, and more.

Duramax LMM (2007–2010)

The Duramax LMM introduced advanced emissions technology while maintaining the performance drivers expect. Producing 365 horsepower at 3,200 rpm and 660 lb-ft of torque at 1,600 rpm, this 6.6L turbo-diesel engine offered exceptional towing power. At Coy’s Diesel, we keep your LMM running clean and strong. From DPF maintenance to fuel system optimization, we ensure your engine powers on for the long haul.

Duramax LBZ (2006–2007)

The Duramax LBZ stands out for its pre-emissions design, delivering 360 horsepower at 3,200 rpm and 650 lb-ft of torque at 1,600 rpm. This engine is highly regarded for its strength, durability, and smooth performance under heavy loads, making it a top choice among diesel enthusiasts. At Coy’s Diesel, we understand what makes the LBZ special and provide tailored services to keep it running like new. From engine diagnostics to transmission services, we offer comprehensive care for your engine.

Duramax LLY (2004–2005)

The Duramax LLY builds on the success of its predecessor, offering improved power and enhanced emissions compliance. With 310 horsepower at 3,000 rpm and 605 lb-ft of torque at 1,600 rpm, the LLY is a reliable choice for those who demand performance and efficiency. At Coy’s Diesel, we keep your LLY at peak performance. From turbocharger tuning to injector diagnostics and cooling system care, trust us to maximize the reliability and lifespan of your Duramax LLY.

Duramax LB7 (2001–2004)

Renowned for its dependability, the Duramax LB7 set the benchmark for diesel performance in heavy-duty trucks. This 6.6L V8 turbo-diesel delivers an impressive 300 horsepower at 3,100 rpm and 520 lb-ft of torque at just 1,800 rpm, making it a powerhouse for towing and hauling. At Coy’s Diesel, we help your LB7 keep running strong with expert services tailored to its unique needs. From diagnostics to repairs with genuine parts, we’ve got you covered.