Diesel 12 Speed Trucks For Sale

Your Current Search
Industry
Trucks
Transmission Speeds
12 Speed
Fuel Type
Diesel
Click the to remove the filter.
Narrow Your Search
Keyword Search
Search within the selected criteria
Industry
Trucks (5329)
Model
Select a manufacturer to view available models.
Model Year
-
GVWR Category
Transmission Speed
12 Speed (5329)
Cab Style
Fuel Type
Diesel (5329)
Mileage
-
Horsepower
-
Price
-
State / Region
Select a country to view available states.
2001-2025 of 5,329 results
2001-2025 of 5,329 results
Freightliner T12664ST Day Cab Truck - 435HP, 12 Speed Automatic
21 0

2018 Freightliner T12664ST Day Cab Truck - 435HP, 12 Speed Automatic

Recently Updated
$36,500 USD
SPECIAL PROMOTION - Original Price: $43500.00 Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We...
ConditionUsed
Usage329,889 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power435 HP
Engine ModelDD13
Transmission12 Speed Automatic
Sleeper Size0"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number315299
MLS Number12847497
CategoryDay Cab Semi Trucks
Last Updated2/20/2025
Location
Middlefield, OH, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Day Cab Truck - 450HP, 12 Speed Automatic
20 0

2018 Freightliner Cascadia 125 Day Cab Truck - 450HP, 12 Speed Automatic

Newly Listed
$37,500 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage450,106 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDD13
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number177249
MLS Number13405338
CategoryDay Cab Semi Trucks
Last Updated2/21/2025
Location
Wilkes Barre, PA, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Day Cab Truck - 435HP, 12 Speed Automatic
21 0

2018 Freightliner Cascadia 125 Day Cab Truck - 435HP, 12 Speed Automatic

Recently Updated
$43,500 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage291,286 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power435 HP
Engine ModelDD13
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number176070
MLS Number13355819
CategoryDay Cab Semi Trucks
Last Updated2/19/2025
Location
Dayton, NJ, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Day Cab Truck - 435HP, 12 Speed Automatic
18 0

2018 Freightliner Cascadia 125 Day Cab Truck - 435HP, 12 Speed Automatic

Price Drop
$42,500 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage381,664 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power435 HP
Engine ModelDD13
Transmission12 Speed Automatic
Sleeper Size0"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number303285
MLS Number13313910
CategoryDay Cab Semi Trucks
Last Updated2/20/2025
Location
Mount Juliet, TN, US
Sold By

Penske Used Trucks

Freightliner X12542ST Single Axle Day Cab Truck - 410HP, 12 Speed Automatic
18 0

2018 Freightliner X12542ST Single Axle Day Cab Truck - 410HP, 12 Speed Automatic

Recently Updated
$22,000 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage578,460 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelDD13
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End23,000 lb 3.21 ratio
Stock Number182998
MLS Number12718277
CategoryDay Cab Semi Trucks
Last Updated2/21/2025
Location
Middlefield, OH, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Single Axle Day Cab Truck - 410HP, 12 Speed Automatic
19 0

2018 Freightliner Cascadia 125 Single Axle Day Cab Truck - 410HP, 12 Speed Automatic

Recently Updated
$26,750 USD
DEER GUARD INCLUDED Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing;...
ConditionUsed
Usage571,758 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelDD13
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End23,000 lb 3.21 ratio
Stock Number182994
MLS Number13083529
CategoryDay Cab Semi Trucks
Last Updated2/21/2025
Location
Mebane, NC, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Day Cab Truck - 450HP, 12 Speed Automatic
17 0

2018 Freightliner Cascadia 125 Day Cab Truck - 450HP, 12 Speed Automatic

Recently Updated
$23,500 USD
DEER GUARD INCLUDED Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing;...
ConditionUsed
Usage716,773 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDD13
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock Number182991
MLS Number12382686
CategoryDay Cab Semi Trucks
Last Updated2/21/2025
Location
Montgomery, AL, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Day Cab Truck - 450HP, 12 Speed Automatic
18 0

2017 Freightliner Cascadia 125 Day Cab Truck - 450HP, 12 Speed Automatic

Recently Updated
$38,750 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage304,965 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDD13
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock Number191747
MLS Number13168839
CategoryDay Cab Semi Trucks
Last Updated2/23/2025
Location
Middlefield, OH, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Day Cab Truck - 450HP, 12 Speed Automatic
18 0

2017 Freightliner Cascadia 125 Day Cab Truck - 450HP, 12 Speed Automatic

Recently Updated
$30,750 USD
SPECIAL PROMOTION - Original Price: $35750.00 Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We...
ConditionUsed
Usage382,563 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDD13
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock Number191745
MLS Number13132325
CategoryDay Cab Semi Trucks
Last Updated2/21/2025
Location
Middlefield, OH, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Day Cab Truck - 450HP, 12 Speed Automatic
18 0

2017 Freightliner Cascadia 125 Day Cab Truck - 450HP, 12 Speed Automatic

Recently Updated
$25,000 USD
SPECIAL PROMOTION - Original Price: $30000.00 Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We...
ConditionUsed
Usage495,194 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDD13
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock Number191743
MLS Number12927899
CategoryDay Cab Semi Trucks
Last Updated2/21/2025
Location
Middlefield, OH, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Day Cab Truck - 450HP, 12 Speed Automatic
18 0

2017 Freightliner Cascadia 125 Day Cab Truck - 450HP, 12 Speed Automatic

Recently Updated
$24,000 USD
MANAGERS SPECIAL Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing;...
ConditionUsed
Usage607,292 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDD13
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock Number191740
MLS Number12927898
CategoryDay Cab Semi Trucks
Last Updated2/21/2025
Location
Middlefield, OH, US
Sold By

Penske Used Trucks

Freightliner Cascadia 113 Day Cab Truck - 410HP, 12 Speed Automatic
17 0

2017 Freightliner Cascadia 113 Day Cab Truck - 410HP, 12 Speed Automatic

Recently Updated
$39,500 USD
SPECIAL PROMOTION - Original Price: $42500.00 Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We...
ConditionUsed
Usage140,932 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelDD13
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock Number209401
MLS Number13272244
CategoryDay Cab Semi Trucks
Last Updated2/21/2025
Location
Parkersburg, WV, US
Sold By

Penske Used Trucks

Freightliner Cascadia 113 Day Cab Truck - 410HP, 12 Speed Automatic
18 0

2017 Freightliner Cascadia 113 Day Cab Truck - 410HP, 12 Speed Automatic

Price Drop
$36,250 USD
SPECIAL PROMOTION - Original Price: $39250.00 Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We...
ConditionUsed
Usage264,212 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelDD13
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock Number209400
MLS Number13292950
CategoryDay Cab Semi Trucks
Last Updated2/21/2025
Location
Parkersburg, WV, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Day Cab Truck - 435HP, 12 Speed Automatic
18 0

2017 Freightliner Cascadia 125 Day Cab Truck - 435HP, 12 Speed Automatic

Recently Updated
$45,000 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage240,725 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power435 HP
Engine ModelDD13
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock Number209826
MLS Number12633906
CategoryDay Cab Semi Trucks
Last Updated2/23/2025
Location
Newnan, GA, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic
12 0

2016 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Recently Updated
$37,500 USD
SPECIAL PROMOTION - Original Price: $42500.00 Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We...
ConditionUsed
Usage685,969 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDD15AT
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number152356
MLS Number11598140
CategorySleeper Semi Trucks
Last Updated2/20/2025
Location
Sturtevant, WI, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Single Axle Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic
22 0

2019 Freightliner Cascadia 125 Single Axle Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

Price Drop
$60,750 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage505,148 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelDD15AT
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleSingle Axle
Rear End40,000 lb 2.27 ratio
Stock Number717879
MLS Number13367371
CategorySleeper Semi Trucks
Last Updated2/19/2025
Location
Rockwall, TX, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Single Axle Sleeper Semi Truck - Integral Sleeper
23 0

2019 Freightliner Cascadia 125 Single Axle Sleeper Semi Truck - Integral Sleeper

Recently Updated
$62,750 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage466,929 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelDD15AT
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleSingle Axle
Rear End40,000 lb 2.27 ratio
Stock Number717872
MLS Number13363104
CategorySleeper Semi Trucks
Last Updated2/19/2025
Location
Rockwall, TX, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Single Axle Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic
23 0

2019 Freightliner Cascadia 125 Single Axle Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

Price Drop
$64,500 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage436,300 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelDD15AT
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleSingle Axle
Rear End40,000 lb 2.27 ratio
Stock Number717870
MLS Number13367366
CategorySleeper Semi Trucks
Last Updated2/19/2025
Location
Rockwall, TX, US
Sold By

Penske Used Trucks

International LT625 Day Cab Truck - Cummins 450HP, 12 Speed Automatic
18 0

2019 International LT625 Day Cab Truck - Cummins 450HP, 12 Speed Automatic

Recently Updated
$35,750 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage386,933 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelCummins X15
Transmission12 Speed Automatic
Sleeper Size0"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.64 ratio
Stock Number51930
MLS Number13293735
CategoryDay Cab Semi Trucks
Last Updated2/21/2025
Location
Allen Park, MI, US
Sold By

Penske Used Trucks

Freightliner Cascadia 126 Day Cab Truck - 455HP, 12 Speed Automatic
18 0

2021 Freightliner Cascadia 126 Day Cab Truck - 455HP, 12 Speed Automatic

Recently Updated
$68,250 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage255,016 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power455 HP
Engine ModelDD15AT
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number4947
MLS Number13321627
CategoryDay Cab Semi Trucks
Last Updated2/22/2025
Location
Londonderry, NH, US
Sold By

Penske Used Trucks

Freightliner Cascadia 126 Day Cab Truck - 455HP, 12 Speed Automatic
18 0

2021 Freightliner Cascadia 126 Day Cab Truck - 455HP, 12 Speed Automatic

Recently Updated
$69,250 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage227,938 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power455 HP
Engine ModelDD15AT
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number4945
MLS Number13319111
CategoryDay Cab Semi Trucks
Last Updated2/22/2025
Location
Londonderry, NH, US
Sold By

Penske Used Trucks

Freightliner Cascadia 125 Sleeper Semi Truck - 72" Integral Sleeper, 475HP, 12 Speed Automatic
23 0

2018 Freightliner Cascadia 125 Sleeper Semi Truck - 72" Integral Sleeper, 475HP, 12 Speed Automatic

Recently Updated
$48,750 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage555,854 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power475 HP
Engine ModelDD15
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.85 ratio
Stock Number20371
MLS Number13329308
CategorySleeper Semi Trucks
Last Updated2/18/2025
Location
Elmira, NY, US
Sold By

Penske Used Trucks

International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic
23 0

2022 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Recently Updated
$70,750 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage525,406 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.64 ratio
Stock NumberUPS234916
MLS Number13367309
CategorySleeper Semi Trucks
Last Updated2/22/2025
Location
Jurupa Valley, CA, US
Sold By

Penske Used Trucks

International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic
23 0

2022 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Recently Updated
$73,000 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage374,343 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.64 ratio
Stock NumberUPP235077
MLS Number13280009
CategorySleeper Semi Trucks
Last Updated2/23/2025
Location
Twinsburg, OH, US
Sold By

Penske Used Trucks

Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic
28 0

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Recently Updated
$63,250 USD
Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We offer competitive financing; extended warranties;...
ConditionUsed
Usage630,583 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDD15AT
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.85 ratio
Stock Number428390
MLS Number13203964
CategorySleeper Semi Trucks
Last Updated2/22/2025
Location
Ashland, VA, US
Sold By

Penske Used Trucks

Did you find what you were looking for? Yes No