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 (10673)
Cars (64)
Model
Select a manufacturer to view available models.
Condition
Model Year
-
GVWR Category
Transmission Type
Transmission Speed
6 Speed (10737)
Drive Train
Suspension Type
Cab Style
Fuel Type
Mileage
-
Horsepower
-
Price
-
Country
State / Region
Select a country to view available states.
Market Type

Showing 626 - 650 of 10,737 Truck Listings

626 - 650 of 10,737 listings
626 - 650 of 10,737 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
$30,000 USD
Used 2021 GMC G33903 Box Truck for sale, 104,106 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lbs single rear axle, 177-inch wheelbase, roll up door. See it...
ConditionUsed
Usage104,106 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 Number91621376
MLS Number14111174
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/29/2026
Location
Comstock Park, 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

Newly Listed
$28,500 USD
Used 2021 GMC G33903 Box Truck for sale, 121,660 miles, 401 HP 6.6L V8 engine, 6-speed automatic transmission, single rear axle with 8,600 lbs capacity, 33-gallon fuel tank, roll-up door,...
ConditionUsed
Usage121,660 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 Number91621356
MLS Number14111173
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/29/2026
Location
Fort Wayne, IN, 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
$30,750 USD
Used 2021 GMC G33903 Box Truck for sale, 104,012 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8,600 lbs single rear axle, 33-gallon fuel capacity. See it now.
ConditionUsed
Usage104,012 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 Number91621205
MLS Number14111171
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/29/2026
Location
Sioux Falls, SD, 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
$28,500 USD
Used 2021 GMC G33903 Box Truck for sale, 111,493 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lb single rear axle, 126" height, roll-up door. Check it out.
ConditionUsed
Usage111,493 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 Number91621036
MLS Number14111170
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/27/2026
Location
Tampa, 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

Newly Listed
$29,750 USD
Used 2021 GMC G33903 Box Truck for sale, 110,363 miles, 401 HP 6.6L V8 engine, 6-speed automatic transmission, single rear axle, 8,600 lb capacity, roll-up door. See it now.
ConditionUsed
Usage110,363 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 Number91620998
MLS Number14111168
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/29/2026
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
$31,000 USD
Used 2021 GMC G33903 Box Truck for sale, 93,680 miles, 401 HP 6.6LV8 engine, 6-speed automatic transmission, 8600 lb single rear axle, 33-gallon fuel capacity, roll-up door. Check it out.
ConditionUsed
Usage93,887 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 Number91620640
MLS Number13520379
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/27/2026
Location
West Sacramento, 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

Newly Listed
$29,750 USD
Used 2021 GMC G33903 Box Truck for sale, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 86,00 lb single rear axle, 177" wheelbase, roll up door, 126" height. See it now.
ConditionUsed
Usage114,259 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 Number91620562
MLS Number14111164
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/29/2026
Location
Garland, 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
$30,250 USD
Used 2021 GMC G33903 Box Truck for sale, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 86,00 lb single rear axle, 177-inch wheelbase, 33-gallon fuel capacity. Check it out.
ConditionUsed
Usage115,676 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 Number91620432
MLS Number14111162
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/29/2026
Location
Clackamas, OR, 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, 115,638 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8,600 lb single rear axle, roll-up door, 33-gallon fuel capacity....
ConditionUsed
Usage115,638 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 Number91620366
MLS Number14111161
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/27/2026
Location
Tampa, 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

Newly Listed
$25,250 USD
Used 2021 GMC G33903 Box Truck for sale, 101,194 miles, 401 HP 6.6L V8 GMC engine, 6-speed automatic transmission, single rear axle 8,600 lbs, spring suspension, roll-up door. Check it out...
ConditionUsed
Usage101,194 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 Number91620115
MLS Number14111158
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/29/2026
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

Newly Listed
$23,000 USD
Used 2021 GMC G33903 Box Truck for sale, 112,523 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8,600 lb single rear axle, 33-gallon fuel capacity, roll-up door....
ConditionUsed
Usage112,523 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 Number91619803
MLS Number14111148
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/29/2026
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

Newly Listed
$26,750 USD
Used 2021 GMC G33903 Box Truck for sale, 103,553 miles, 401 HP 6.6L V8 GMC engine, 6-speed automatic transmission, 8600 lbs single rear axle, 33-gallon fuel capacity, yellow with roll-up...
ConditionUsed
Usage103,553 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 Number91619786
MLS Number14111144
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/29/2026
Location
Poplar Bluff, 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
$27,000 USD
Used 2021 GMC G33903 Box Truck for sale, 115,493 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, single rear axle 8600 lbs, roll-up door, 33-gallon fuel capacity. See...
ConditionUsed
Usage115,493 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 Number91618837
MLS Number14111119
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/29/2026
Location
Fredericksburg, VA, 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
$23,750 USD
Used 2021 GMC G33903 Box Truck for sale, 115,169 miles, 401 HP 6.6L V8 gasoline engine, 6-speed automatic transmission, 8600 lbs single rear axle, 177" wheelbase, roll-up door, 33-gallon...
ConditionUsed
Usage115,170 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 Number91618569
MLS Number14079841
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/27/2026
Location
Phoenix, AZ, US
Sold By
Penske Used Trucks
International MV607 Box Truck - 250HP, 6 Speed Automatic, Roll up Door

2021 International MV607 Box Truck - 250HP, 6 Speed Automatic, Roll up Door

Newly Listed
$49,250 USD
Used 2021 International MV607 Box Truck for sale, 250 HP Cummins B6.7 diesel engine, 6-speed Allison automatic transmission, air ride suspension, 210,128 miles, white with roll-up door. See...
ConditionUsed
Usage210,128 Miles
Duty ClassMedium Duty Box Truck
Horse Power250 HP
Engine ModelCummins B6.7
Transmission6 Speed Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End19,000 lb 4.63 ratio
Door TypeRoll up
Stock Number381446
MLS Number14111089
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/27/2026
Location
Phoenix, AZ, US
Sold By
Penske Used Trucks
Freightliner M2 Box Truck - 220HP, 6 Speed Automatic, Roll up Door

2021 Freightliner M2 Box Truck - 220HP, 6 Speed Automatic, Roll up Door

Recently Updated
$70,000 USD
Used 2021 Freightliner M2 Box Truck for sale, 88,727 miles, 220HP B6.7 diesel engine, 6-speed automatic Allison transmission, single rear axle, air ride suspension, roll-up door. Check it...
ConditionUsed
Usage88,727 Miles
Duty ClassMedium Duty Box Truck
Horse Power220 HP
Engine ModelB6.7
Transmission6 Speed Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End19,000 lb 5.22 ratio
Door TypeRoll up
Stock Number381093
MLS Number14072198
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/27/2026
Location
Windsor, WI, US
Sold By
Penske Used Trucks
Freightliner M2 Box Truck - 220HP, 6 Speed Automatic, Roll up Door

2021 Freightliner M2 Box Truck - 220HP, 6 Speed Automatic, Roll up Door

Recently Updated
$51,000 USD
Used 2021 Freightliner M2 Box Truck for sale, 225,254 miles, 220 HP Cummins B6.7 diesel engine, 6-speed Allison automatic transmission, 10,000 lbs front axle, 19,000 lbs single rear axle,...
ConditionUsed
Usage231,019 Miles
Duty ClassMedium Duty Box Truck
Horse Power220 HP
Engine ModelCummins B6.7
Transmission6 Speed Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End19,000 lb 5.22 ratio
Door TypeRoll up
Stock Number381087
MLS Number14014878
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/29/2026
Location
Atlanta, GA, US
Sold By
Penske Used Trucks
Freightliner M2 Box Truck - 220HP, 6 Speed Automatic, Roll up Door

2021 Freightliner M2 Box Truck - 220HP, 6 Speed Automatic, Roll up Door

Recently Updated
$56,250 USD
Used 2021 Freightliner M2 Box Truck for sale, 195,235 miles, 220 HP Cummins B6.7 engine, 6-speed Allison automatic transmission, diesel fuel, air ride suspension, roll-up door. See it now.
ConditionUsed
Usage195,235 Miles
Duty ClassMedium Duty Box Truck
Horse Power220 HP
Engine ModelCummins B6.7
Transmission6 Speed Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End19,000 lb 5.22 ratio
Door TypeRoll up
Stock Number380979
MLS Number13703446
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/28/2026
Location
Austin, TX, US
Sold By
Penske Used Trucks
Freightliner M2 Box Truck - 260HP, 6 Speed Automatic, Roll up Door

2021 Freightliner M2 Box Truck - 260HP, 6 Speed Automatic, Roll up Door

Newly Listed
$41,500 USD
Used 2021 Freightliner M2 box truck for sale, 260HP Cummins B6.7 diesel engine, 6-speed Allison automatic transmission, 270" wheelbase, air ride suspension, roll-up door. Check it out today!
ConditionUsed
Usage252,760 Miles
Duty ClassMedium Duty Box Truck
Horse Power260 HP
Engine ModelCummins B6.7
Transmission6 Speed Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End19,000 lb 5.56 ratio
Door TypeRoll up
Stock Number321375
MLS Number14111070
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/28/2026
Location
Romulus, MI, US
Sold By
Penske Used Trucks
Ford E350 Box Truck - 305HP, 6 Speed Automatic, Roll up Door

2021 Ford E350 Box Truck - 305HP, 6 Speed Automatic, Roll up Door

Newly Listed
$31,250 USD
Used 2021 Ford E350 Box Truck for sale, 94,108 miles, 305 HP 7.3L V8 gasoline engine, 6-speed automatic transmission, single rear axle, 40-gallon fuel capacity, 126-inch height. Don't miss...
ConditionUsed
Usage94,108 Miles
Duty ClassLight Duty Box Truck
Horse Power305 HP
Engine ModelFord 7.3LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End8,500 lb 4.56 ratio
Door TypeRoll up
Stock Number91617880
MLS Number14111069
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/29/2026
Location
White Deer, PA, US
Sold By
Penske Used Trucks
Kenworth T880S Tri Axle Dump Truck - Paccar 510HP, 6 Speed Allison Rds Automatic, 17' Dump

2026 Kenworth T880S Tri Axle Dump Truck - Paccar 510HP, 6 Speed Allison Rds Automatic, 17' Dump

Recently Updated
$239,095 USD
Transfer this unit to your nearest Maryland/Delaware location at no additional cost! Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro or Westminster. Contact us for...
ConditionNew
Usage576 Miles
Duty ClassHeavy Duty Dump Truck
Upfit MakeHERITAGE
Bed Length17 ft.
Horse Power510 HP
Engine ModelPaccar MX-13
Drivetrain8x4
Transmission6 Speed Allison RDS Automatic
SuspensionHendrickson PRIMAAX
Rear AxleTri Axle
Rear End66,000 lb 4.30 ratio
Stock NumberKN230282
MLS Number14094531
CategoryDump Trucks
Last Updated1/27/2026
Location
Upper Marlboro, MD, US
Sold By
All Roads Trucks
GMC G33405 Cargo Van - 6.0LV8, 276HP, 6 Speed Automatic

2020 GMC G33405 Cargo Van - 6.0LV8, 276HP, 6 Speed Automatic

Newly Listed
$30,000 USD
Used 2020 GMC G33405 Cargo Van with 64,067 miles, 6.0LV8 gasoline engine, 276 HP, 6-speed automatic transmission, single rear axle, spring suspension, 135" wheelbase. Check it out today.
ConditionUsed
Usage64,067 Miles
Duty ClassLight Duty Cargo Van
Horse Power276 HP
Engine ModelGMC 6.0LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End5,700 lb 3.42 ratio
Stock Number379766
MLS Number14111066
CategoryCargo Vans
Last Updated1/29/2026
Location
Jessup, PA, US
Sold By
Penske Used Trucks
Isuzu NPR EFI Box Truck - 297HP, 6 Speed Automatic, Roll up Door

2020 Isuzu NPR EFI Box Truck - 297HP, 6 Speed Automatic, Roll up Door

Newly Listed
$40,250 USD
Used 2020 Isuzu NPR EFI Box Truck with 297HP 6.0LV8 GMC gasoline engine, 6-speed automatic transmission, single rear axle, 150" wheelbase, 30-gallon fuel tank, white color, roll-up door,...
ConditionUsed
Usage48,066 Miles
Duty ClassLight Duty Box Truck
Horse Power297 HP
Engine ModelGMC 6.0LV8
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End11,020 lb 5.37 ratio
Door TypeRoll up
Stock Number378489
MLS Number14111064
CategoryDelivery / Moving / Straight / Box Trucks
Last Updated1/27/2026
Location
Londonderry, NH, US
Sold By
Penske Used Trucks
International MV 2000 Gallon Water Truck - Cummins 240HP, 6 Speed Automatic

2023 International MV 2000 Gallon Water Truck - Cummins 240HP, 6 Speed Automatic

Recently Updated
$100,000 USD
brand new conversion 2000 USG TANK BODY SPECIFICATIONS -2000 USG tank made from 3/16” AR 37-gauge steel, one baffle, 2” fill tube, 1” ladder, 10’ ft long x 86” Wide x 60” Tall, 3/16” half...
ConditionUsed
Usage42,675 Miles
Duty ClassHeavy Duty Water Truck
Horse Power240 HP
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Capacity2000 Gallons
Stock Number2677
MLS Number14082901
CategoryWater Trucks
Last Updated1/27/2026
Location
Fontana, CA, US
Sold By
TCI Transportation
International MV607 Flatbed Truck - 220HP, 6 Speed Automatic

2021 International MV607 Flatbed Truck - 220HP, 6 Speed Automatic

Recently Updated
$50,000 USD
Used 2021 International MV607 Flatbed Truck for sale, 170,171 miles, 220 HP Cummins B6.7 diesel engine, 6-speed Allison automatic transmission, single rear axle, air ride suspension, 11R22.5...
ConditionUsed
Usage175,734 Miles
Duty ClassMedium Duty Flatbed Truck
Horse Power220 HP
Engine ModelCummins B6.7
Transmission6 Speed Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End17,500 lb 5.57 ratio
Stock Number374927
MLS Number13581702
CategoryFlatbed Trucks
Last Updated1/29/2026
Location
White Deer, PA, US
Sold By
Penske Used Trucks
Did you find what you were looking for? Yes No