2021 GMC Sierra 3500HD for sale

All available 2021 GMC Sierra 3500HD listings.

505 listings • $26,995 – $84,988 • avg 66,919 mi

2021 GMC Sierra 3500HD SLT — Pickup Truck — 29,974 mi — Reidsville, NC
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

SLT · 4WD · Automatic

29,974 miDiesel Onyx Black

Contact for price

Reidsville, NC

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2021 GMC Sierra 3500HD AT4 — Pickup Truck — 46,041 mi — Orchard Park, NY Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

AT4 · 4WD · Automatic

46,041 miDiesel Summit White

$58,946

Orchard Park, NY

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 70,956 mi — Arlington, TX Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

70,956 miDiesel Summit White

$59,987

Arlington, TX

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 60,637 mi — Spokane, WA Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

60,637 miDiesel Summit White

$63,200

Spokane, WA

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 76,934 mi — Lynden, WA Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

76,934 miDiesel Pacific Blue Metallic

$55,850

Lynden, WA

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2021 GMC Sierra 3500HD AT4 — Pickup Truck — 79,727 mi — Garland, TX Salvage
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

AT4 · 4WD · Automatic

79,727 miDiesel Onyx Black

$46,995

Garland, TX

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 61,917 mi — Peoria, AZ Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

61,917 miDiesel Ebony Twilight Metallic

$59,862

Peoria, AZ

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2021 GMC Sierra 3500HD SLE — Pickup Truck — 29,594 mi — Sierra Vista, AZ Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

SLE · 4WD · Automatic

29,594 miGas Summit White

$46,995

Sierra Vista, AZ

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2021 GMC Sierra 3500HD AT4 — Pickup Truck — 45,377 mi — Peoria, AZ Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

AT4 · 4WD · Automatic

45,377 miDiesel Onyx Black

$58,991

Peoria, AZ

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2021 GMC Sierra 3500HD Base — Pickup Truck — 48,782 mi — Easton, PA Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Base · 4WD · Automatic

48,782 miDiesel Onyx Black

$49,450

Easton, PA

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2021 GMC Sierra 3500HD AT4 — Pickup Truck — 21,308 mi — Woodbridge, VA Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

AT4 · 4WD · Automatic

21,308 miGas Summit White

$54,000

Woodbridge, VA

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2021 GMC Sierra 3500HD Base — Pickup Truck — 121,413 mi — Scottsdale, AZ Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Base · 4WD · Automatic

121,413 miDiesel Summit White

$41,894

Scottsdale, AZ

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2021 GMC Sierra 3500HD Base — Pickup Truck — 72,685 mi — Bay Shore, NY Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Base · 4WD · Automatic

72,685 miGas Summit White

$43,500

Bay Shore, NY

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 1,651 mi — Reidsville, NC Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

1,651 miDiesel Unknown

$70,650

Reidsville, NC

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 22,726 mi — Walnut Creek, CA Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

22,726 miDiesel Quicksilver Metallic

$70,500

Walnut Creek, CA

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 67,254 mi — Warrensville Heights, OH Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

67,254 miDiesel Onyx Black

$58,998

Warrensville Heights, OH

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 75,930 mi — Portland, OR Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

75,930 miDiesel White Frost Tricoat

$60,900

Portland, OR

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 58,475 mi — Deland, FL Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

58,475 miDiesel Summit White

$61,168

Deland, FL

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 121,755 mi — Anderson, SC Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

121,755 miDiesel Ebony Twilight Metallic

$52,115

Anderson, SC

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2021 GMC Sierra 3500HD AT4 — Pickup Truck — 75,251 mi — Boise, ID Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

AT4 · 4WD · Automatic

75,251 miGas White

$54,492

Boise, ID

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2021 GMC Sierra 3500HD AT4 — Pickup Truck — 46,725 mi — Fayetteville, NC Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

AT4 · 4WD · Automatic

46,725 miDiesel Onyx Black

$59,499

Fayetteville, NC

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 32,475 mi — Tucson, AZ Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

32,475 miDiesel White Frost Tricoat

$62,211

Tucson, AZ

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 95,914 mi — Grayslake, IL Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

95,914 miDiesel Carbon Black Metallic

$52,290

Grayslake, IL

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2021 GMC Sierra 3500HD Denali — Pickup Truck — 94,527 mi — Roseville, MN Clean title
GMC logo

USED · Pickup Truck

2021 GMC Sierra 3500HD

Denali · 4WD · Automatic

94,527 miDiesel Onyx Black

$54,895

Roseville, MN

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About this category

The 2021 GMC Sierra 3500HD is currently available in 505 listings on Carlify. Average mileage across these listings is 66,919 miles. Pricing starts at $26,995 and reaches $84,988. Browse photos, full vehicle history, and dealer details for each 2021 Sierra 3500HD.

Frequently asked questions

How much does a 2021 GMC Sierra 3500HD cost used?
2021 GMC Sierra 3500HD listings range from $26,995 to $84,988, averaging $58,075 on Carlify.
How many 2021 GMC Sierra 3500HD are listed?
Carlify shows 505 active 2021 GMC Sierra 3500HD listings.
What's the average mileage on a 2021 GMC Sierra 3500HD?
Average mileage across 2021 GMC Sierra 3500HD listings is 66,919 miles.