6 Speed Trucks with GMC Engines For Sale

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Showing 526 - 550 of 592 Truck Listings

526 - 550 of 592 listings
526 - 550 of 592 listings
Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door

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

$39,250 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 Updated1/7/2026
Location
Akron, OH, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

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

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

$30,250 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 Updated1/7/2026
Location
Louisville, KY, US
Sold By
Penske Used Trucks
Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door

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

$32,250 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 Updated1/8/2026
Location
New Castle, DE, US
Sold By
Penske Used Trucks
Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door

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

$39,250 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 Updated1/4/2026
Location
Dallas, TX, US
Sold By
Penske Used Trucks
Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door

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

$30,750 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 Updated1/9/2026
Location
Duncansville, PA, US
Sold By
Penske Used Trucks
Isuzu NPR EFI Box Truck - 350HP, 6 Speed Automatic, Roll up Door

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

$38,750 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 Updated1/8/2026
Location
Kennesaw, GA, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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 Updated1/7/2026
Location
Fontana, CA, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

$29,000 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 Updated1/9/2026
Location
Londonderry, NH, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

Price Drop $26,000 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 Updated1/4/2026
Location
Pasco, WA, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

$27,750 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 Updated1/8/2026
Location
Burlington, NJ, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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 Updated1/7/2026
Location
Conway, SC, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

$29,500 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 Updated1/8/2026
Location
Warren, MI, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

$28,000 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 Updated1/8/2026
Location
Binghamton, NY, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

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

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

$28,250 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 Updated1/2/2026
Location
Concord, NC, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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 Updated1/7/2026
Location
Wilmington, NC, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

$28,750 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 Updated1/9/2026
Location
Oklahoma City, OK, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

$28,750 USD
Used 2021 GMC G33903 Box Truck for sale, 114,762 miles, 401HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle, 8,600 lbs axle rating, roll-up door. Check it out.
ConditionUsed
Usage114,992 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 Number91620161
MLS Number13905611
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated12/25/2025
Location
Jamaica, NY, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

$26,250 USD
Used 2021 GMC G33903 Box Truck for sale, 132,732 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lbs single rear axle, 177-inch wheelbase, 33-gallon fuel capacity...
ConditionUsed
Usage132,732 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 Number91619848
MLS Number13899672
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/7/2026
Location
Pennsauken, NJ, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

$26,250 USD
Used 2021 GMC G33903 Box Truck for sale, 111,866 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle with spring suspension, 8600 lbs capacity. See it now...
ConditionUsed
Usage111,866 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 Number91619697
MLS Number13847491
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/7/2026
Location
National City, CA, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

$27,000 USD
Used 2021 GMC G33903 Box Truck for sale, 106,496 miles, 401 HP 6.6LV8 GMC engine, 6-speed automatic transmission, single rear axle 8600 lbs, spring suspension. Check it out today.
ConditionUsed
Usage106,496 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 Number91619456
MLS Number13529013
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/7/2026
Location
Medley, FL, US
Sold By
Penske Used Trucks
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

$28,000 USD
Used 2021 GMC G33903 Box Truck for sale, 106,632 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle with 8,600 lbs capacity, roll-up door, 177-inch...
ConditionUsed
Usage106,635 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 Number91619387
MLS Number13586921
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/9/2026
Location
Philadelphia, PA, US
Sold By
Penske Used Trucks
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