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2021 Chevy Silverado 2500HD Custom Now Available With Diesel 6.6L V8

Customers interested in the 2021 Chevy Silverado 2500HD Custom will now have two engine options to choose from, including the 6.6L V8 L5P turbodiesel Duramax.

Ever since the introduction of the latest fourth-generation Chevrolet Silverado HD for the 2020 model year, 2500HD models in the Custom trim level were only available with the gas-powered 6.6L V8 L8T. Other trims were also offered with the 6.6L V8 L5P turbodiesel Duramax. Now, the 2021 Chevy Silverado 2500HD Custom is offered with both the gas-powered 6.6L V8 L8T and the diesel-powered 6.6L V8 L5P.

To note, the 2021 Chevy Silverado 2500HD Custom is available in the following configurations:

  • Double Cab / Standard Bed
  • Double Cab / Long Bed
  • Crew Cab / Standard Bed
  • Crew Cab / Long Bed
6.6L L5P V8 turbodiesel Duramax

6.6L L5P V8 turbodiesel Duramax

As for the engine specs, the 6.6L V8 L5P turbodiesel Duramax produces 445 horsepower at 2,800 rpm and 910 pound-feet of torque at 1,600 rpm, while the naturally aspirated 6.6L V8 L5P gas engine produces 401 horsepower at 5,200 rpm and 464 pound-feet of torque at 4,000 rpm. The diesel option mates to a 10-speed automatic transmission, while the gas engine connects to a six-speed automatic transmission.

The GM L5P engine made its debut with the 2017 Chevy Silverado HD and 2017 GMC Sierra HD, and offers 90 percent of peak torque at just 1,550 rpm.

The Custom trim level sits near the bottom of the 2021 Chevy Silverado 2500HD lineup, slotting above the WT trim, but below the LT, LTZ, and high Country trims.

Under the skin, the 2021 Chevrolet Silverado 2500HD rides on a more capable version of the GM T1 platform, the same bones as the 2021 GMC Sierra 1500 and Sierra HD, the 2021 GMC Yukon SUV, and several of full-size GM trucks and SUVs.

The 2021 Silverado 2500HD is assembled at the GM Flint facility in Flint, Michigan, as well as GM Fort Wayne Assembly facility in Fort Wayne, Indiana.

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Jonathan is an automotive journalist based out of Southern California. He loves anything and everything on four wheels.

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Comments

  1. Good, now can Chevy re design the he front and rear of the thing

    Reply
    1. Why, it is selling as fast as we can get them

      Reply
    2. I hate the front end of the new trucks but like the crew cab area and bed

      Reply
  2. But can we get the 6.6 gas with the 10l90 in place of the 6l90?

    Reply
    1. 4.5 to 5.0 liter inline 6 turbodiesel with 10 speed automatic and I’ll take one.

      Reply
    2. Could all the 6.6 gas come as Flex Fuel. They currently only offer it in work truck and has to have one other configuration to order it. It’s only a $100 option. I can currently get E-85 delivered to my farm in South Dakota for about a $1 less than gasoline and it burns cleaner. I wonder what they actually change besides the gas cap to make it flex fuel?

      Reply
  3. It is great to see all this improvements on the HD. Chevy ,But I am concern ,That Gm is not doing anything with showing the next generation 2023 Chevy Colorado ! Ford is doing the testing on its Ranger and showing photos ! If GM is not care full, The Ranger will out sale the Colorado !

    Reply
  4. this will be a good watch during weekends. Very light.

    Reply

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