2011-2016 GM Duramax 2500HD/3500HD 6.6L LML Parts & Accessories

Top 2011-2016 Duramax Parts & Accessories

The Duramax 2500HD/3500HD LMLs are some awesome, capable trucks that get the job done right off the showroom floor. That being said, there's plenty more power and capability hiding within that even just a few parts and accessories can unlock in a big way. Our selection of Duramax LML mods will give your awesome HD Silverado or HD Sierra a ton more horsepower, a bunch of torque, and a ton more capability in practically any application you need. The only bad news is that there's a ton of different parts and accessories to choose from and finding the right combination of GM 2500 or GM 3500 parts for your particular build can be a bit daunting. The good news is that we here at Alligator Performance have a ton of experience with the Duramax LMLs, and we can help you find the perfect set of Duramax parts and accessories that let you get the very most out of your tough HD 2500 or HD 3500 build.

2011-2016 Duramax LML Engine Upgrades

Getting more power out of the Duramax LMLs is the first stop for a lot HD Sierra and HD Silverado owners, and it's easy to see why. The Duramax LMLs are hiding a ton of horsepower and torque hiding away in its bowels, and our selection of Duramax LML Engine Upgrades can help you unlock it. One of the most effective ways to give your Duramax LML a massive amount of horsepower and torque is with a Duramax LML Tuner. These tuning devices change the software in your GM 2500 and GM 3500's ECM and adjusts your truck's boost pressure, fueling, and transmission function so that your Duramax LML feels like an entirely new beast. Many of the tunes are 50-state street legal and can net you up to a whopping 200lb-ft more torque and 100 horsepower over stock without the need for any hard parts at all. Many of these devices feature large screens that make them effective monitoring devices so that you can keep tabs on your truck's critical engine functions and catch problems before they become disasters. One of our favorite Duramax LML tuners is the Edge CTS3, which adds huge power to your truck while serving as an awesome and responsive monitor.

While a tuner can get you big power, they are fairly pricey and may not be everyone's cup of tea. For a simple, bolt-on Duramax power upgrade, turn to our selection of Duramax LML cold air intakes. An HD Silverado and HD Sierra cold air intake provides a larger amount of cooler charge air at higher velocity than the stock air box and paper filter, which gives your Duramax a bump in power and throttle response. These cold air intake kits are extremely easy to install, making them an extremely hassle-free performance upgrade for Duramax LMLs. One of our most popular Duramax LML cold air intake kits is the 2011-2016 Duramax LML S&B Oiled Intake Kit. S&B's intake features a high-quality construction, excellent price point, and great performance all in one kit. The S&B intake is a complete replacement for the factory intake system and comes with an oiled air filter, complete air box, and new inlet tubing to provide a big bump in airflow.

2011-2016 Duramax LML Leveling Kits

While power is nice, the real downsides of a bone-stock Duramax LML is the stock rake that gives them a very nose-down stance and their inability to fit big tires. Our selection of Duramax LML Leveling Kits are the perfect solution for getting your HD Silverado or HD Sierra a clean, leveled look and extra clearance for larger tires. All of these kits increase your GM 2500 or GM 3500s front ride height just enough to get rid of your truck's rake and provide enough clearance to fit on slightly bigger wheel and tire combinations than stock. We have Duramax leveling kits to fit any budget or application, with everything from basic torsion key kits to complete suspension systems that also give your Duramax improved handling to go along with a boost in front ride height. One of our favorite Duramax LML leveling kits is the Kryptonite Stage 3 Leveling Kit. The Kryptonite Stage 3 System adds up to 2" of front ride height to your truck, and also includes a set of high-strength upper control arms and a full set of Bilstein 5100s that provide an excellent on-road ride and much better off-road handling than the factory shocks.

2011-2016 Duramax LML Lift Kits

If you really want to go big with your Duramax LML's wheels and tires, or just want to make your HD Sierra or HD Silverado one of the biggest and baddest trucks around, you're going to need more lift than what a leveling kit alone can provide. That's where our Duramax LML Lift Kits come in. These suspension systems provide a huge increase in both front and rear ride height which gets your GM 2500 or GM 3500 high up in the air and clearing absolutely enormous wheel and tire combinations. These lift kits come with all the hardware you need give your Duramax a ton of ride height all in one place. One of our most popular Duramax LML lift kits is the 2011-2019 Duramax Cognito 6" Standard Lift Kit. The Cognito 6" lift kit adds 6" of front ride height and 3" of rear height which gives your Duramax LML a leveled stance at a whole new ride height. On top of the lift hardware, the Cognito Standard lift kit comes with a complete set of Fox 2.0 shocks that help give your Duramax LML build an excellent street ride and awesome levels of off-road performance.

2011-2016 GM Duramax LML Wheels & Tires

One of the quickest and most effective ways to change your Duramax LML's looks is with a new set of wheels and tires, and the good news is that we here at Alligator Performance have more than few Duramax LML wheels and tires available for your very own build. We have a bunch of Duramax wheels available for your HD Sierra or HD Silverado that will completely change up your tough truck's looks in a big way. We have Duramax 17" wheels, Duramax 18" wheels, and Duramax 20" wheels available in a bunch of different widths, designs, styles, backspacings, offsets, and finishes so that you can find the perfect appearance that fits in perfectly with your Duramax's OEM paint color or aftermarket styling theme. As far as tires, we carry a variety of Duramax 35" tires and Duramax 37" tires available that will give your 2011-2016 Duramax LML an awesome look, more ground clearance, and improved traction all in one place. We carry Duramax all-terrain tires, Duramax hybrid-terrain tires, and Duramax mud-terrain tires available so that you can find the right balance of ride quality and traction for your Duramax build.