home chevron_right
more_horiz
chevron_right
MARKET PRICES

2021 GMC Sierra

Follow Market to get updates when there are new listings or price updates for GMC Sierra (1988 to 2025)
Loading...
Loading...

What's it worth?

Track your car's value and get notified about comparable listings.

Connect with a dealer

Tell us about your car and we can find dealers interested in selling it.

Sell Your Vehicle

We'll help you price it right, then you can list it yourself.

Have a question? Ask Rusty
info
These answers are AI generated and may sometimes display incorrect information. They do not represent Classic.com's values or opinions. By using this chatbot you agree to our Terms and Conditions.

Rusty Logo beta

Get instant answers with AI powered search of listing information.

Powered by CLASSIC.com

Showing 24 of 45 related listings

2021 GMC Sierra 2500HD Denali

Modified
6865 mi 82k mi
Manual transmission Automatic
LHD steering LHD
For Sale
$54,661
Beaverton Nissan
verified
verified Verified Seller
Jan 17, 2026
2021 GMC Sierra 3500 Denali
Marietta, Georgia, USA

2021 GMC Sierra 3500 Denali

Modified
6865 mi 110k mi
Manual transmission Automatic
LHD steering LHD
For Sale
$53,400
Jan 10, 2026

2021 GMC Sierra 2500 AT4

Modified
6865 mi 16k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$69,995
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Dec 20, 2025

2021 GMC Sierra 1500 AT4

Custom
6865 mi 49k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$43,995
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Unlimited Motors
verified
verified Verified Seller
Nov 13, 2025

2021 GMC Sierra 3500HD Denali

Modified
6865 mi 43k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$66,487
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Gladstone Mitsubishi
verified
verified Verified Seller
Nov 10, 2025

2021 GMC Sierra 3500HD Denali

Modified
6865 mi 71k mi
Manual transmission Automatic
LHD steering LHD
Not Sold
$42,500
info
Highest Bid
Oct 24, 2025
2021 GMC Sierra 2500HD Denali
Marietta, Georgia, USA

2021 GMC Sierra 2500HD Denali

Modified
6865 mi 44k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$59,800
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Oct 21, 2025
2021 GMC Sierra 2500 HD AT4
Marietta, Georgia, USA

2021 GMC Sierra 2500 HD AT4

Modified
6865 mi 85k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$58,800
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Sep 23, 2025
2021 GMC Sierra 1500 Denali Ultimate Hennessey HPE640
Aurora, Illinois, USA

2021 GMC Sierra 1500 Denali Ultimate Hennessey HPE640

Modified
6865 mi 69k mi
Manual transmission Automatic
LHD steering LHD
Not Sold
$43,250
info
Highest Bid
Jul 7, 2025

2021 GMC Sierra 1500 Harley-Davidson Edition Pickup

Modified
6865 mi 18k mi
Manual transmission Automatic
LHD steering LHD
Sold
$71,500
Apr 25, 2025

2021 GMC Sierra 2500HD Denali

Modified
6865 mi 54k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$61,947
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Exotic Motorsports of Oklahoma
verified
verified Verified Seller
Apr 24, 2025
2021 GMC Sierra 2500HD Denali 4X4
CAN

2021 GMC Sierra 2500HD Denali 4X4

Original & Highly Original
6865 mi 135k mi
Manual transmission Automatic
LHD steering LHD
Not Sold
$32,500
info
Highest Bid
Feb 27, 2025

2021 GMC Sierra 2500 AT4

Modified
6865 mi 43k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$65,921
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Feb 19, 2025
2021 GMC Sierra 1500 AT4
Westfield, IN, USA
78

2021 GMC Sierra 1500 AT4

Original & Highly Original
6865 mi 59k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$40,900
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Unlimited Motors
verified
verified Verified Seller
Feb 18, 2025

2021 GMC Sierra 2500HD AT4

Original & Highly Original
6865 mi 58k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$62,990
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Earth MotorCars
verified
verified Verified Seller
Jan 10, 2025

2021 GMC Sierra 1500 Denali

Original & Highly Original
6865 mi 72k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$40,900
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Jan 8, 2025

2021 GMC Sierra 1500 Denali

Original & Highly Original
6865 mi 57k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$45,900
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Dec 9, 2024

2021 GMC Sierra 1500 AT4

Original & Highly Original
6865 mi 36k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$49,900
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
High Octane Classics
verified
verified Verified Seller
Oct 24, 2024

2021 GMC Sierra 3500HD Denali Crew Cab

Modified
6865 mi 14k mi
Manual transmission Automatic
LHD steering LHD
Price Undisclosed
Avant Garde Collection
verified
verified Verified Seller
Oct 10, 2024

2021 GMC Sierra 3500HD Denali Crew Cab

Modified
6865 mi 14k mi
Manual transmission Automatic
LHD steering LHD
Sold
$72,500
Oct 7, 2024

2021 GMC Sierra 2500HD Denali Crew Cab

Original & Highly Original
6865 mi 26k mi
Manual transmission Automatic
LHD steering LHD
Sold
$57,000
Oct 4, 2024

2021 GMC Sierra 1500 SLT

Original & Highly Original
6865 mi 24k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$42,995
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Sep 26, 2024

2021 GMC Sierra 1500 SLT Crew Cab 4WD

Original & Highly Original
6865 mi 20k mi
Manual transmission Automatic
LHD steering LHD
Sold
$40,500
Jul 2, 2024

2021 GMC Sierra 1500 Denali

Original & Highly Original
6865 mi 18k mi
Manual transmission Automatic
LHD steering LHD
Last Asking
$54,991
info
This listing was either sold, or removed, by the seller. The last asking price is the last price detected by Classic.com.
Ferrari of Naples
verified
verified Verified Seller
May 3, 2024
Suggested Submarkets
GMC
280 For sale
GMC Model 16
GMC Model 16
1917 to 1926
CMB $14,575
0 For sale
GMC T & F Series
GMC T & F Series
1936 to 1938
0 For sale
GMC Suburban
GMC Suburban
1937 to 1999
13 For sale
GMC A Series
GMC A Series
1939 to 1940
1 For sale
GMC C & E Series
GMC C & E Series
1941 to 1947
2 For sale
GMC DUKW Amphibious
GMC DUKW Amphibious
1942 to 1945
CMB $54,614
0 For sale
GMC New Design
GMC New Design
1948 to 1955
14 For sale
GMC Blue Chip Series
GMC Blue Chip Series
1955 to 1959
8 For sale
GMC C/K
GMC C/K
1960 to 1989
86 For sale
GMC Handi-Van
GMC Handi-Van
1964 to 1970
0 For sale
GMC Jimmy
GMC Jimmy
1970 to 1991
24 For sale
GMC Vandura
GMC Vandura
1971 to 1996
3 For sale
GMC Sprint
GMC Sprint
1971 to 1977
1 For sale
GMC Motorhome
GMC Motorhome
1973 to 1978
1 For sale
GMC Caballero
GMC Caballero
1978 to 1987
8 For sale
GMC TopKick
GMC TopKick
1980 to 2009
4 For sale
GMC S-15 / Sonoma
GMC S-15 / Sonoma
1982 to 2004
5 For sale
GMC S-15 Jimmy
GMC S-15 Jimmy
1983 to 2005
1 For sale
GMC Safari
GMC Safari
1985 to 2005
2 For sale
GMC Syclone
GMC Syclone
1991 to 1992
CMB $47,084
3 For sale
GMC Typhoon
GMC Typhoon
1992 to 1993
CMB $39,683
3 For sale
GMC Yukon
GMC Yukon
1992 to 2014
17 For sale
GMC Savana
GMC Savana
1996 to 2026
5 For sale
GMC Canyon
GMC Canyon
2004 to 2025
0 For sale
GMC Sierra - 1st Gen
GMC Sierra - 1st Gen
1988 to 2002
46 For sale
GMC Sierra - 2nd Gen
GMC Sierra - 2nd Gen
1999 to 2007
14 For sale
GMC Sierra - 3rd Gen
GMC Sierra - 3rd Gen
2007 to 2013
5 For sale
GMC Sierra - 4th Gen
GMC Sierra - 4th Gen
2014 to 2019
7 For sale
GMC Sierra - 5th Gen
GMC Sierra - 5th Gen
2019 to 2026
6 For sale