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Here Are The Two New Wheel Options For The 2021 GMC Sierra HD

The GMC Sierra Heavy Duty truck line received a complete overhaul (redesign and re-engineering) for the 2020 model year, ushering in an all-new fourth generation. Now, the upcoming 2021 GMC Sierra HD is set to bring a few minor changes, including new wheel options, two of which are featured here.

20-inch high-gloss Black aluminum wheels with machined accents (SKX)

20-inch high-gloss Black aluminum wheels with machined accents (SKX)

20-inch multi-dimensional Chrome aluminum (SKW)

20-inch multi-dimensional Chrome aluminum (SKW)

The first of these two new roller options is a 20-inch high-gloss Black aluminum wheel with machined accents, tagged with RPO code SKX. The second is a 20-inch multi-dimensional Chrome aluminum wheel tagged with RPO code SKW.

Both new wheel options are offered on 2500HD and 3500HD variants of the 2021 GMC Sierra HD. Both are available as LPO items, which means they are available to order with the vehicle and installed by the dealer, or available as accessories after the vehicle sale. When ordered with the vehicle, the truck will come equipped with four aluminum 20-inch wheels from the factory, with alignment set to the 20-inch LPO wheel specs for installation by the dealer.

Both of these 2021 GMC Sierra HD wheel options require LT275/65R20 all-terrain blackwall tires (RPO code QF9), and are not available with wheel locks (RPO code SFE).

The new 2021 GMC Sierra HD wheels will be available in Q4 of 2020.

As a reminder, the 2021 GMC Sierra HD is offered with two engine and transmission configurations, including the naturally aspirated 6.6L V8 L8T gas engine, which produces 401 horsepower and 464 pound-feet of torque, mating to the six-speed automatic (MYD) transmission, and the 6.6L V8 L5P turbodiesel Duramax, which produces 445 horsepower and 910 pound-feet of torque, and mates to the 10-speed automatic (MGM, MGU) transmission. Under the skin is a more capable version of the GM T1 platform.

20-inch high-gloss Black aluminum wheels with machined accents (SKX)

20-inch high-gloss Black aluminum wheels with machined accents (SKX)

20-inch multi-dimensional Chrome aluminum (SKW)

20-inch multi-dimensional Chrome aluminum (SKW)

Which of these two new 2021 GMC Sierra HD wheel options do you prefer – high-gloss black, or multi-dimensional chrome? Let us know by voting in the poll, and make sure to subscribe to GM Authority for more GMC Sierra news, GMC news, and around-the-clock GM news coverage.

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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. Com as rodas pretas e,os detalhes em alumínio.
    sem sombra de dúvidas ela ficam mais agressiva, bruta.
    Já em relação as pneus perfil 65 não são suficientes para obsoverem os impactos de offrold…
    Deveriam repensarem nas opções de pneus..!

    Reply
  2. GM needs to review how many warranty claims received from offering aluminum chrome wheels. The salt has a field day with corrosion issues. After 5 winters my 22″ optional factory chrome wheels had rim leaks caused by corrosion. After this past winter had them dismounted sanded and refinished the inside hubs. Also, sanded off the inside corrosion issue then sealing material was applied before mounting new tires. I’m sure after another MI winter reoccurring problems will arise.

    Reply
  3. GM needs to re-evaluate there Sierra trucks all together. The recalls are astronomical, and on going.
    They fix one issue and send out another recall to fix there initial recall. Customer service is the worst, dealerships are lagging in support. Rethink ever buying a GM product.

    Reply
  4. They both look like crap! 99% of 8 lug rims look like crap anyways. 20’s on an HD look small too, they should at least be a 22″ rim, but it’s all about the money I’m sure.

    Reply
  5. I’ve had GMC’s my whole life but my current 2013 3500SRW will be my last. GM is notorious for rust above the rear wheel well, they rust from the inside out. Secondly the cost to value as gone down hill drastically, they charge a insane amount of money for a truck that looks like hell. The ‘17 and ‘18s were real and they even put some plastic trim on the wheel wells to maybe hide the rust that’ll happen. I’d take a 1997 GMC over a 2020 any day but I’ll be buying a F-350 King Ranch for my next truck. Oh and both new rims are horrible

    Reply

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