6 Speed Trucks with GMC Engines For Sale

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Showing 326 - 350 of 411 Truck Listings

326 - 350 of 411 listings
326 - 350 of 411 listings
Isuzu NPR EFI Single Axle Cab & Chassis Truck - Gmc, 350HP, 6 Speed Automatic
21 0

2020 Isuzu NPR EFI Single Axle Cab & Chassis Truck - Gmc, 350HP, 6 Speed Automatic

$22,250 USD
Used 2020 Isuzu NPR EFI Single Axle Cab Chassis Truck with GMC 6.6L V8 gasoline engine, 350 HP, 6-speed automatic transmission, single rear axle, and 150-inch wheelbase. See it now!
ConditionUsed
Usage250,038 Miles
Duty ClassLight Duty Cab & Chassis Truck
Horse Power350 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
Rear AxleSingle Axle
Rear End4.30 ratio
Stock Number4960
MLS Number13900158
CategoryCab & Chassis Trucks
Last Updated12/25/2025
Location
Londonderry, NH, US
Sold By
Penske Used Trucks
Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door
26 0

2023 Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door

$38,750 USD
Used 2023 Isuzu NPR EFI box truck for sale, 350 HP gasoline engine by GMC, 6.6L V8, 6-speed automatic transmission, single rear axle, spring suspension, 127,736 miles. Check it out.
ConditionUsed
Usage127,736 Miles
Duty ClassLight Duty Box Truck
Horse Power350 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End14,550 lb 4.30 ratio
Door TypeRoll up
Stock Number217056
MLS Number13770150
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/20/2025
Location
Akron, OH, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
26 0

2022 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$30,250 USD
Used 2022 GMC G33903 Box Truck, 401HP 6.6LV8 gasoline engine, 6-speed automatic transmission, single rear axle with 8600 lbs capacity, 177-inch wheelbase, Spring suspension. Check it out.
ConditionUsed
Usage117,401 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91626851
MLS Number14016186
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/16/2025
Location
Mobile, AL, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
26 0

2022 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$24,500 USD
Used 2022 GMC G33903 Box Truck for sale, 129,194 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle 8,600 lbs, roll up door, yellow color. See it now.
ConditionUsed
Usage129,195 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91624449
MLS Number14016174
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/16/2025
Location
Homewood, AL, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
25 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$30,750 USD
Used 2021 GMC G33903 Box Truck for sale, 104,508 miles, 401HP 6.6L V8 engine, 6-speed automatic transmission, single rear axle 8,600 lbs, 177” wheelbase, white with roll-up door. Check it...
ConditionUsed
Usage104,508 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91623873
MLS Number14015886
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/28/2025
Location
Louisville, KY, US
Sold By
Penske Used Trucks
Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door
26 0

2021 Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door

$31,000 USD
Used 2021 Isuzu NPR EFI Box Truck for sale, 127,331 miles, 350 HP 6.6L V8 gas engine by GMC, 6-speed automatic transmission, roll-up door, light duty GVWR, spring suspension. Come see us.
ConditionUsed
Usage127,749 Miles
Duty ClassLight Duty Box Truck
Horse Power350 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End11,020 lb 5.37 ratio
Door TypeRoll up
Stock Number487817
MLS Number13730518
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/4/2025
Location
New Castle, DE, US
Sold By
Penske Used Trucks
Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door
24 0

2021 Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door

$36,250 USD
Used 2021 Isuzu NPR EFI Box Truck for sale, 88,602 miles, 350 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle, spring suspension, 30-gallon fuel capacity,...
ConditionUsed
Usage88,602 Miles
Duty ClassLight Duty Box Truck
Horse Power350 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End11,020 lb 5.37 ratio
Door TypeRoll up
Stock Number487731
MLS Number13773429
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/12/2025
Location
Dallas, TX, US
Sold By
Penske Used Trucks
Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door
26 0

2021 Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door

$31,000 USD
Used 2021 Isuzu NPR EFI Box Truck for sale, 140,140 miles, 350 HP 6.6L V8 GMC engine, 6-speed automatic transmission, single rear axle, spring suspension, white with roll-up door. Check it...
ConditionUsed
Usage140,140 Miles
Duty ClassLight Duty Box Truck
Horse Power350 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End11,020 lb 5.37 ratio
Door TypeRoll up
Stock Number487576
MLS Number13750051
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/10/2025
Location
Duncansville, PA, US
Sold By
Penske Used Trucks
Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door
26 0

2021 Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door

$37,500 USD
Used 2021 Isuzu NPR EFI box truck for sale, 127,422 miles, 350 HP 6.6L V8 engine by GMC, 6-speed automatic transmission, single rear axle, roll-up door, 30-gallon fuel capacity. Check it out...
ConditionUsed
Usage127,964 Miles
Duty ClassLight Duty Box Truck
Horse Power350 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End11,020 lb 5.37 ratio
Door TypeRoll up
Stock Number487364
MLS Number14015514
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/9/2025
Location
Kennesaw, GA, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
30 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$29,000 USD
Used 2021 GMC G33903 Box Truck for sale, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lbs single rear axle, 177" wheelbase, 33-gallon fuel tank, roll-up door. Check...
ConditionUsed
Usage114,879 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91621447
MLS Number13865292
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/4/2025
Location
Fontana, CA, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
26 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$29,500 USD
Used 2021 GMC G33903 Box Truck for sale, 107,671 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lb single rear axle, 177-inch wheelbase, 33-gallon fuel capacity,...
ConditionUsed
Usage107,671 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91621386
MLS Number13811589
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/11/2025
Location
Londonderry, NH, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
25 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$25,750 USD
Used 2021 GMC G33903 Box Truck for sale, 107,495 miles, 401HP 6.6L V8 engine, 6-speed automatic transmission, single rear axle with 8,600 lbs capacity, 33-gallon fuel tank, white color, roll...
ConditionUsed
Usage107,499 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91621336
MLS Number13305764
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/11/2025
Location
Salt Lake City, UT, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
29 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$31,000 USD
Used 2021 GMC G33903 Box Truck for sale, 112,346 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle with 8,600 lbs capacity, roll-up door. Check it out.
ConditionUsed
Usage112,348 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91621210
MLS Number13865291
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/4/2025
Location
Pasco, WA, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
26 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$28,500 USD
Used 2021 GMC G33903 Box Truck for sale, 116,732 miles, 401 HP 6.6L V8 GMC engine, 6-speed automatic transmission, single rear axle with 8,600 lbs capacity, spring suspension, white color,...
ConditionUsed
Usage116,749 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91621151
MLS Number13824750
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/10/2025
Location
Burlington, NJ, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
26 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$28,000 USD
Used 2021 GMC G33903 Box Truck for sale, 90,126 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8,600 lb single rear axle, 177" wheelbase, roll-up door, 33-gallon fuel...
ConditionUsed
Usage90,126 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91621024
MLS Number13539526
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/25/2025
Location
Capitol Heights, MD, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
29 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$29,500 USD
Used 2021 GMC G33903 Box Truck for sale, 114,736 miles, 401 HP 6.6L V8 engine, 6-speed automatic transmission, single rear axle rated 8,600 lbs, gasoline fuel, roll-up door. See it now.
ConditionUsed
Usage114,856 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91621017
MLS Number13870229
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/9/2025
Location
Conway, SC, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
26 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$27,750 USD
Used 2021 GMC G33903 Box Truck for sale, 113,080 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8,600 lbs single rear axle, 177" wheelbase, roll-up door. See it now.
ConditionUsed
Usage113,081 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91620991
MLS Number13857382
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/11/2025
Location
Warren, MI, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
29 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$27,750 USD
ConditionUsed
Usage108,162 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91620886
MLS Number13655551
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/19/2025
Location
Binghamton, NY, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
26 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$27,000 USD
Used 2021 GMC G33903 Box Truck for sale, 118,892 miles, 401 HP 6.6L V8 GMC gasoline engine, 6-speed automatic transmission, single rear axle 8,600 lbs, spring suspension, roll-up door. Check...
ConditionUsed
Usage119,095 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91620804
MLS Number13824743
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/28/2025
Location
Panama City, FL, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
28 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$27,750 USD
Used 2021 GMC G33903 Box Truck for sale, 115,647 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lb single rear axle, 177-inch wheelbase, roll-up door. Check it...
ConditionUsed
Usage115,647 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91620764
MLS Number13865289
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/28/2025
Location
Pensacola, FL, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
30 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$28,000 USD
Used 2021 GMC G33903 Box Truck, 401HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 106,542 miles, 177-inch wheelbase, single rear axle 8,600 lbs, roll-up door, white. Check it...
ConditionUsed
Usage106,542 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91620686
MLS Number13620022
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/31/2025
Location
Concord, NC, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
26 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$29,500 USD
Used 2021 GMC G33903 Box Truck for sale, 112,778 miles, 401 HP 6.6L V8 engine, 6-speed automatic transmission, white, 126-inch height, roll-up door, 8,600 lb rear axle. Check it out.
ConditionUsed
Usage114,759 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91620568
MLS Number13854119
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/4/2025
Location
Wilmington, NC, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
25 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$31,000 USD
Used 2021 GMC G33903 Box Truck for sale, 88,022 miles, 401HP 6.6LV8 GMC gasoline engine, 6-speed automatic transmission, single rear axle 8,600 lbs, 177" wheelbase, white with roll-up door....
ConditionUsed
Usage88,022 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91620536
MLS Number14015090
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/16/2025
Location
Ypsilanti, MI, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
25 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$27,000 USD
Used 2021 GMC G33903 Box Truck, 401 HP, 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle with 8600 lbs capacity, 177-inch wheelbase, 33-gallon fuel tank, white, roll...
ConditionUsed
Usage114,678 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91620338
MLS Number13854118
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/31/2025
Location
Stockton, CA, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door
26 0

2021 GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

$29,000 USD
Used 2021 GMC G33903 Box Truck for sale, 115,630 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8,600 lbs single rear axle, roll-up door, 177-inch wheelbase. Check it...
ConditionUsed
Usage115,630 Miles
Duty ClassLight Duty Box Truck
Horse Power401 HP
Engine ModelGMC 6.6LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,600 lb 4.10 ratio
Door TypeRoll up
Stock Number91620324
MLS Number13843381
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/10/2025
Location
Oklahoma City, OK, US
Sold By
Penske Used Trucks
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