What Air Bags Will Fit 2021 GMC Sierra 1500 Denali Ultimate 3.0 Duramax Crew Cab?
Updated 12/22/2025 | Published 10/01/2024
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Question:
What air bag s will fit 2021 gmc sierra 1500 denali ultimate with the 3.0 duramax 4x4 crew cab.
asked by: Robert
Expert Reply:
Hello Robert. We do offer an air bag kit that will fit your 2021 GMC Sierra 1500 Denali Ultimate 3.0 Duramax 4x4 Crew Cab. For that I recommend the Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers # AL88288. We have confirmed with the manufacturer that this will work on vehicles with the Duramax Diesel engine. The only exclusion for this kit is the factory adaptive ride control, so as long as you don't have that, the # AL88288 is definitely what I recommend.
I also recommend adding the Air Lift WirelessAIR Compressor System # AL74000EZ since it will allow you to fill and monitor the bags with your smartphone.
Product Page this Question was Asked From
Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers - Rear Axle
- Vehicle Suspension
- Towing/Load Leveling
- Air Springs
- Suspension Only
- Heavy Duty
- Rear Axle Suspension Enhancement
- Air Lift
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Jesse M.
12/22/2025
Hey Robert, how did the Air Lift LoadLifter 5000 Ultimate air bags work out on your Sierra 1500? Did the ride feel more stable when towing or hauling? Your feedback could help others looking at the same setup.