New gmc sierra-3500hd for Sale near Port O Connor, TX
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2026 GMC Sierra 3500HD Denali Ultimate
3 mi.
46 days on market
1GT4UYEY5TF154143
$104,685
Great Deal
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD SLE
0 mi.
8 days on market
1GT4UTEY6TF190104
$76,600
Great Deal
South Texas Buick Gmc
McAllen, TX
4.4
2026 GMC Sierra 3500HD Denali
3 mi.
47 days on market
1GT4UWEY6TF156567
$96,410
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD Denali
5 mi.
32 days on market
1GT4UWEY2TF172667
$93,780
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD Denali
0 mi.
3 days on market
1GT4UWEYXTF192701
$95,810
Fair Deal
South Texas Buick Gmc
McAllen, TX
4.4
2026 GMC Sierra 3500HD SLE
0 mi.
8 days on market
1GT4UTEY1TF188499
$76,600
South Texas Buick Gmc
McAllen, TX
4.4
2026 GMC Sierra 3500HD SLT
3 mi.
63 days on market
1GT4UUEY2TF147613
$83,780
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD Denali
5 mi.
100 days on market
1GT4UWEY7TF116028
$95,810
Great Deal
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD Denali
5 mi.
54 days on market
1GT4UWEY7TF156951
$96,410
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD Denali
3 mi.
47 days on market
1GT4UWEY2TF157179
$95,810
Great Deal
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD SLE
0 mi.
8 days on market
1GT4UTEY4TF188870
$76,105
South Texas Buick Gmc
McAllen, TX
4.4
2026 GMC Sierra 3500HD SLE
5 mi.
25 days on market
1GT4UTEY2TF163871
$79,120
Fair Deal
South Texas Buick Gmc
McAllen, TX
4.4
2026 GMC Sierra 3500HD Denali
3 mi.
32 days on market
1GT4UWEY4TF172654
$93,780
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD Denali Ultimate
5 mi.
54 days on market
1GT4UYEY8TF151009
$104,565
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD SLE
0 mi.
8 days on market
1GT4UTEY2TF189015
$76,600
Fair Deal
South Texas Buick Gmc
McAllen, TX
4.4
2026 GMC Sierra 3500HD SLT
3 mi.
63 days on market
1GT4UUEY1TF147845
$83,780
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD AT4
0 mi.
37 days on market
1GT4UVEY9TF163359
$87,205
Fredericksburg Chevrolet Gmc
Fredericksburg, TX
4.7
2026 GMC Sierra 3500HD Denali
150 mi.
25 days on market
1GT4UWEY0TF141448
$89,334
Patriot Buick Gmc
Killeen, TX
4.6
2026 GMC Sierra 3500HD SLE
6 mi.
57 days on market
1GT3UTEY7TF146320
$76,709
Rio Motor Co
Rio Grande City, TX
4.5
New listing
2026 GMC Sierra 3500HD Pro
0 mi.
1 day on market
1GT4USEY8TF197520
$72,645
Rio Motor Co
Rio Grande City, TX
4.5
2026 GMC Sierra 3500HD AT4
10 mi.
42 days on market
1GT4UVEY4TF162829
$92,849
Uvalde Chevrolet
Uvalde, TX
4.5
2026 GMC Sierra 3500HD Denali
10 mi.
46 days on market
1GT4UWEY0TF161800
$96,500
Uvalde Chevrolet
Uvalde, TX
4.5
2026 GMC Sierra 3500HD Denali Ultimate
10 mi.
39 days on market
1GT4UYEY9TF167087
$106,164
Uvalde Chevrolet
Uvalde, TX
4.5
2026 GMC Sierra 3500HD Denali Ultimate
10 mi.
41 days on market
1GT4UYEYXTF166904
$105,564
Uvalde Chevrolet
Uvalde, TX
4.5
2026 GMC Sierra 3500HD Pro
0 mi.
78 days on market
1GT3USEY7TF134422
$68,950
Great Deal
Wright Buick Gmc
Lufkin, TX
4.7
2026 GMC Sierra 3500HD SLT
3 mi.
37 days on market
1GT4UUEY7TF169364
$88,020
Navarre Gmc
Lake Charles, LA
4.1
2026 GMC Sierra 3500HD Denali Ultimate
3 mi.
36 days on market
1GT4UYEY6TF169377
$105,165
Navarre Gmc
Lake Charles, LA
4.1
2026 GMC Sierra 3500HD SLT
8 mi.
23 days on market
1GT4UUEY3TF180359
$89,130
Good Deal
Rex Perry Autoplex
Nacogdoches, TX
4.6
2026 GMC Sierra 3500HD Denali Ultimate
3 mi.
46 days on market
1GT4UYEY5TF154143
$104,685
Great Deal
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD SLE
0 mi.
8 days on market
1GT4UTEY6TF190104
$76,600
Great Deal
South Texas Buick Gmc
McAllen, TX
4.4
2026 GMC Sierra 3500HD Denali
3 mi.
47 days on market
1GT4UWEY6TF156567
$96,410
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD Denali
5 mi.
32 days on market
1GT4UWEY2TF172667
$93,780
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD Denali
0 mi.
3 days on market
1GT4UWEYXTF192701
$95,810
Fair Deal
South Texas Buick Gmc
McAllen, TX
4.4
2026 GMC Sierra 3500HD SLE
0 mi.
8 days on market
1GT4UTEY1TF188499
$76,600
South Texas Buick Gmc
McAllen, TX
4.4
2026 GMC Sierra 3500HD SLT
3 mi.
63 days on market
1GT4UUEY2TF147613
$83,780
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD Denali
5 mi.
100 days on market
1GT4UWEY7TF116028
$95,810
Great Deal
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD Denali
5 mi.
54 days on market
1GT4UWEY7TF156951
$96,410
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD Denali
3 mi.
47 days on market
1GT4UWEY2TF157179
$95,810
Great Deal
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD SLE
0 mi.
8 days on market
1GT4UTEY4TF188870
$76,105
South Texas Buick Gmc
McAllen, TX
4.4
2026 GMC Sierra 3500HD SLE
5 mi.
25 days on market
1GT4UTEY2TF163871
$79,120
Fair Deal
South Texas Buick Gmc
McAllen, TX
4.4
2026 GMC Sierra 3500HD Denali
3 mi.
32 days on market
1GT4UWEY4TF172654
$93,780
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD Denali Ultimate
5 mi.
54 days on market
1GT4UYEY8TF151009
$104,565
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD SLE
0 mi.
8 days on market
1GT4UTEY2TF189015
$76,600
Fair Deal
South Texas Buick Gmc
McAllen, TX
4.4
2026 GMC Sierra 3500HD SLT
3 mi.
63 days on market
1GT4UUEY1TF147845
$83,780
South Texas Buick Gmc
McAllen, TX
4.3
2026 GMC Sierra 3500HD AT4
0 mi.
37 days on market
1GT4UVEY9TF163359
$87,205
Fredericksburg Chevrolet Gmc
Fredericksburg, TX
4.7
2026 GMC Sierra 3500HD Denali
150 mi.
25 days on market
1GT4UWEY0TF141448
$89,334
Patriot Buick Gmc
Killeen, TX
4.6
2026 GMC Sierra 3500HD SLE
6 mi.
57 days on market
1GT3UTEY7TF146320
$76,709
Rio Motor Co
Rio Grande City, TX
4.5
New listing
2026 GMC Sierra 3500HD Pro
0 mi.
1 day on market
1GT4USEY8TF197520
$72,645
Rio Motor Co
Rio Grande City, TX
4.5
2026 GMC Sierra 3500HD AT4
10 mi.
42 days on market
1GT4UVEY4TF162829
$92,849
Uvalde Chevrolet
Uvalde, TX
4.5
2026 GMC Sierra 3500HD Denali
10 mi.
46 days on market
1GT4UWEY0TF161800
$96,500
Uvalde Chevrolet
Uvalde, TX
4.5
2026 GMC Sierra 3500HD Denali Ultimate
10 mi.
39 days on market
1GT4UYEY9TF167087
$106,164
Uvalde Chevrolet
Uvalde, TX
4.5
2026 GMC Sierra 3500HD Denali Ultimate
10 mi.
41 days on market
1GT4UYEYXTF166904
$105,564
Uvalde Chevrolet
Uvalde, TX
4.5
2026 GMC Sierra 3500HD Pro
0 mi.
78 days on market
1GT3USEY7TF134422
$68,950
Great Deal
Wright Buick Gmc
Lufkin, TX
4.7
2026 GMC Sierra 3500HD SLT
3 mi.
37 days on market
1GT4UUEY7TF169364
$88,020
Navarre Gmc
Lake Charles, LA
4.1
2026 GMC Sierra 3500HD Denali Ultimate
3 mi.
36 days on market
1GT4UYEY6TF169377
$105,165
Navarre Gmc
Lake Charles, LA
4.1
2026 GMC Sierra 3500HD SLT
8 mi.
23 days on market
1GT4UUEY3TF180359
$89,130
Good Deal
Rex Perry Autoplex
Nacogdoches, TX
4.6
Find New GMC Sierra 3500HD in Port O Connor, TX
We've got 281 New GMC Sierra 3500HD vehicles in Port O Connor, TX, with prices running from $50,650 to $130,729. Mileage ranges up to 5,000 miles, so you can decide if you want something lightly driven or a more wallet-friendly option.
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Other New GMC models in Port O Connor, TX
New GMC AcadiaNew GMC CanyonNew GMC HUMMER EVNew GMC HUMMER EV PickupNew GMC HUMMER EV SUVNew GMC Savana CargoNew GMC Savana CutawayNew GMC Savana PassengerNew GMC Sierra 1500New GMC Sierra 1500 DenaliNew GMC Sierra 1500 LimitedNew GMC Sierra 2500 Denali HDNew GMC Sierra 2500HDNew GMC Sierra 3500 Chassis CabNew GMC Sierra 3500 Denali HDNew GMC Sierra EVNew GMC TerrainNew GMC YukonNew GMC Yukon XL
Used GMC models in Port O Connor, TX
Used GMC AcadiaUsed GMC CanyonUsed GMC HUMMER EVUsed GMC HUMMER EV PickupUsed GMC HUMMER EV SUVUsed GMC Savana CargoUsed GMC Savana CutawayUsed GMC Savana PassengerUsed GMC Sierra 1500Used GMC Sierra 1500 DenaliUsed GMC Sierra 1500 LimitedUsed GMC Sierra 2500 Denali HDUsed GMC Sierra 2500HDUsed GMC Sierra 3500 Chassis CabUsed GMC Sierra 3500 Denali HDUsed GMC Sierra 3500HDUsed GMC Sierra EVUsed GMC TerrainUsed GMC YukonUsed GMC Yukon XL