6 Speed Trucks For Sale

Your Current Search
Industry
Trucks
Transmission Speeds
6 Speed
Market Type
Click the to remove the filter.
Narrow Your Search
Keyword Search
Search within the selected criteria
Equipment Type
Trucks (10712)
Cars (64)
Model
Select a manufacturer to view available models.
Condition
Model Year
-
GVWR Category
Transmission Type
Transmission Speed
6 Speed (10776)
Drive Train
Suspension Type
Cab Style
Fuel Type
Mileage
-
Horsepower
-
Price
-
Country
State / Region
Select a country to view available states.
Market Type

Showing 601 - 625 of 10,776 Truck Listings

601 - 625 of 10,776 listings
601 - 625 of 10,776 listings
GMC G33903 Box Truck - 401HP, 6 Speed Automatic, Roll up Door

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

Newly Listed
$31,500 USD
Used 2021 GMC G33903 Box Truck for sale, 105,546 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8,600 lbs single rear axle, spring suspension, roll-up door. Come see...
ConditionUsed
Usage105,546 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 Number91621046
MLS Number14107327
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/25/2026
Location
Kansas City, MO, 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

Newly Listed
$30,000 USD
Used 2021 GMC G33903 Box Truck for sale, 106,105 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lbs single rear axle, 177-inch wheelbase, white, roll-up door....
ConditionUsed
Usage106,105 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 Number91621033
MLS Number14107324
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/25/2026
Location
Dallas, TX, 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

Newly Listed
$30,000 USD
Used 2021 GMC G33903 Box Truck, 401HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 86,000 lb rear axle, 177-inch wheelbase, 33-gallon fuel capacity, roll-up door, white color....
ConditionUsed
Usage109,248 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 Number91621030
MLS Number14107323
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/25/2026
Location
Greeley, CO, 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

Recently Updated
$30,250 USD
Used 2021 GMC G33903 Box Truck for sale, 105,857 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle with 8,600 lbs rating, 177" wheelbase, white color....
ConditionUsed
Usage109,660 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 Number91620974
MLS Number13827398
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/24/2026
Location
Charlotte, 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

Newly Listed
$25,750 USD
Used 2021 GMC G33903 Box Truck for sale, 115,764 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lbs rear axle, 33-gallon fuel capacity, roll up door. Check it...
ConditionUsed
Usage115,764 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 Number91620959
MLS Number14107317
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/25/2026
Location
Phoenix, AZ, 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 $31,500 USD
Used 2021 GMC G33903 Box Truck for sale, 76,682 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lbs single rear axle, 177-inch wheelbase, white with roll-up door....
ConditionUsed
Usage76,682 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 Number91620864
MLS Number13751705
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/25/2026
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

Recently Updated
$31,500 USD
Used 2021 GMC G33903 Box Truck for sale, 80,424 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8,600 lbs single rear axle, 33-gallon fuel capacity, roll-up door....
ConditionUsed
Usage80,657 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 Number91620856
MLS Number13824746
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/23/2026
Location
Cumberland, MD, 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

Newly Listed
$30,000 USD
Used 2021 GMC G33903 Box Truck for sale, 106,197 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lbs single rear axle, 177” wheelbase, roll-up door, white color....
ConditionUsed
Usage106,197 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 Number91620834
MLS Number14107313
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/25/2026
Location
Katy, TX, 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

Recently Updated
$28,500 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
Usage119,098 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 Updated1/23/2026
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

Recently Updated
$31,500 USD
Used 2021 GMC G33903 Box Truck for sale, 83,067 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle 8,600 lbs, roll-up door, 33-gallon fuel capacity....
ConditionUsed
Usage83,527 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 Number91620781
MLS Number13728126
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/23/2026
Location
Harrisburg, PA, 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

Recently Updated
$27,750 USD
Used 2021 GMC G33903 Box Truck for sale, 106,852 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle 8,600 lbs, roll up door, fuel capacity 33 gallons....
ConditionUsed
Usage108,866 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 Number91620775
MLS Number13760410
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/23/2026
Location
Monmouth Junction, 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

Recently Updated
$29,500 USD
Used 2021 GMC G33903 Box Truck for sale, 108,334 miles, 401HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle 8,600 lbs, 177" wheelbase, roll-up door. Check it out.
ConditionUsed
Usage109,570 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 Number91620755
MLS Number14015096
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/24/2026
Location
Orlando, 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

Recently Updated
$29,500 USD
Used 2021 GMC G33903 Box Truck for sale, 90,016 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle 8,600 lbs, 177" wheelbase, white with roll-up door....
ConditionUsed
Usage90,016 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 Number91620701
MLS Number13423302
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/23/2026
Location
Monmouth Junction, 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

Newly Listed
$29,250 USD
Used 2021 GMC G33903 Box Truck for sale, 115,896 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle 8,600 lbs, 33-gallon fuel tank, roll-up door. See it...
ConditionUsed
Usage115,896 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 Number91620676
MLS Number14107305
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/23/2026
Location
Greensboro, 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

Recently Updated
$32,000 USD
Used 2021 GMC G33903 Box Truck for sale, 93,723 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8,600 lbs single rear axle, 126-inch height, roll-up door. Check it out...
ConditionUsed
Usage93,723 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 Number91620651
MLS Number14077697
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/23/2026
Location
Ladson, 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

Recently Updated
$28,250 USD
Used 2021 GMC G33903 Box Truck for sale, 117,334 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission 6L90, single rear axle 8,600 lbs, roll-up door, 126” height. Check it...
ConditionUsed
Usage117,335 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 Number91620606
MLS Number14072319
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/24/2026
Location
Macon, 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

Newly Listed
$27,750 USD
Used 2021 GMC G33903 Box Truck for sale, 125,859 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lbs single rear axle, 177" wheelbase, white with roll-up door....
ConditionUsed
Usage125,859 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 Number91620603
MLS Number14107303
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/25/2026
Location
Shreveport, LA, 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

Recently Updated
$29,250 USD
Used 2021 GMC G33903 Box Truck for sale, 112,741 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lb rear axle, 177" wheelbase, white with roll-up door. See it now...
ConditionUsed
Usage112,741 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 Number91620579
MLS Number14077692
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/23/2026
Location
Blountville, TN, 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

Recently Updated
$31,500 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
Usage114,847 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 Updated1/23/2026
Location
Melrose Park, IL, 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

Recently Updated
$31,250 USD
Used 2021 GMC G33903 Box Truck for sale, 89,264 miles, 401HP 6.6LV8 gasoline engine, 6-speed automatic transmission, 8600 lbs single rear axle, 126" height, roll up door. See it now.
ConditionUsed
Usage89,265 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 Number91620566
MLS Number14087871
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/25/2026
Location
Akron, OH, 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

Recently Updated
$28,500 USD
Used 2021 GMC G33903 Box Truck, 401HP 6.6LV8 engine, 6-speed automatic transmission, single rear axle 8,600 lbs, 177" wheelbase, 33-gal fuel tank, roll-up door, white, light duty. See it now...
ConditionUsed
Usage120,980 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 Number91620517
MLS Number14072311
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/23/2026
Location
Greeley, CO, 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

Newly Listed
$29,000 USD
Used 2021 GMC G33903 Box Truck for sale, 114,916 miles, 401 HP 6.6L V8 GMC engine, 6-speed automatic transmission, single rear axle 8600 lbs, spring suspension, 33-gallon fuel tank. Check it...
ConditionUsed
Usage114,916 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 Number91620514
MLS Number14107300
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/23/2026
Location
Cleveland, TN, 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

Recently Updated
$31,750 USD
Used 2021 GMC G33903 box truck for sale, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 86,051 miles, 126-inch height, 177-inch wheelbase, single rear axle, spring...
ConditionUsed
Usage88,052 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 Number91620501
MLS Number14079906
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/23/2026
Location
Jessup, PA, 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

Newly Listed
$28,250 USD
Used 2021 GMC G33903 Box Truck for sale, 114,823 miles, 401HP 6.6LV8 gasoline engine, 6-speed automatic transmission, 8600 lbs single rear axle, 33-gallon fuel capacity. Check it out.
ConditionUsed
Usage114,823 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 Number91620476
MLS Number14107299
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/24/2026
Location
Rockville, MD, 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

Recently Updated
$31,500 USD
Used 2021 GMC G33903 Box Truck for sale, 93,840 miles, 401 HP 6.6LV8 gasoline engine, 6-speed automatic transmission, 8,600 lbs single rear axle, 177" wheelbase, roll-up door. Check it out.
ConditionUsed
Usage93,871 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 Number91620438
MLS Number13300783
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/23/2026
Location
Duluth, GA, US
Sold By
Penske Used Trucks
Did you find what you were looking for? Yes No