2017 - 2019 Duramax L5P Parts and Accessories

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Home Duramax 2017 - 2019 L5P

The 2017-2019 model year Duramax, with the new L5P, made a huge leap in front of the competition with the staggering 445 horsepower and 910 pounds of torque it produces. GM did not hold back with the upgrades, even returning the Allison 1000 transmission. However, there's still room for improvement over the stock L5P Duramax; the trick is to find quality parts that will deliver the performance they promise. That's where HeavyWeight Diesel comes in.

Our technicians have spent countless hours around diesel engines, testing what works, what doesn't, and separating quality products from those of lesser quality. HeavyWeight Diesel stocks suspension parts, engine parts, transmission parts, fuel system upgrades, exhaust systems, and much more! Every product on our shelf was carefully tested and chosen to make your L5P Duramax better.

Besides performance, we stock visual mods and accessories that add to your truck instead of taking away from it.

If you need help determining the best way to modify your Duramax, our technicians are more than happy to help, so feel free to contact us!

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