2020 GMC Sierra 3500HD Denali

***** CLEAN CARFAX****Heavy-Duty Luxury: 2020 GMC Sierra 3500 Denali 124,171 Miles

Tackle every job with confidence and do it in style. This 2020 GMC Sierra 3500 Denali brings together rugged capability, upscale comfort, and proven durability. From the trail to the tow site to the city streets, its ready for anything.

Key Highlights

Clean Carfax No accidents, clear history

124,171 Miles Well-lived but well-maintained

Potent Under The Hood: 6.6liter Gas V8 401 horsepower, 464 lb-ft torque.
auto123.com
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Car and Driver
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Heavy-Duty Design: Designed for serious towing, payloads, and long-haul durability.
Jerry Seiner GMC - North Salt Lake
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CarsDirect
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Edmunds
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Denali-Level Comfort & Features: Premium interior materials, upscale touches, tech that makes long drives more pleasant. (Crew Cab, luxury trim, premium sound, etc.)
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GM Authority
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J.D. Power
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Performance & Capability

Engine / Power: 6.6L gas V8 delivering ~401 hp and ~464 lb-ft of torque.
auto123.com
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GM Authority
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Transmission: 6speed automatic heavyduty.
CarsDirect
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Car and Driver
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Towing & Hauling: Among the top in its class for towing. Perfect for trailers, gear, heavy loads. (With the gas V8 version, expect robust capability though lower torque than diesel models.)
TopSpeed
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Car and Driver
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J.D. Power
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Why It Stands Out

Combines Denali-level upmarket finishes with genuine heavy-duty strength rare in a truck that also pampers the driver and passengers.

The gas V8 option means simpler maintenance in some respects (no diesel particulates, DEF, or turbochargers to worry about) while still delivering serious muscle.

Mileage at 124,171 is solid for a well-cared-for heavy-duty truck especially one with routine maintenance shown on a clean history report.

Ideal Buyer

This GMC Sierra 3500 Denali is perfect if you:

Need strength for towing trailers, carrying payloads, or worksite demands

Want luxury features comfort, tech, refinement without sacrificing capability

Prefer gasolines lower upfront maintenance complexity, if diesel isnt essential

Want a truck that can work hard and still impress