New 12 Speed Trucks with Detroit Engines For Sale

Your Current Search
Industry
Trucks
Transmission Speeds
12 Speed
Engine Manufacturer
Detroit
Condition
New
Market Type
For Sale
Click the to remove the filter.
Narrow Your Search
Keyword Search
Search within the selected criteria
Industry
Trucks (14)
Model
Select a manufacturer to view available models.
Condition
Model Year
-
GVWR Category
Rear Axle
Transmission Type
Transmission Speed
12 Speed (14)
Drive Train
Engine Manufacturer
Detroit (14)
Cab Style
Fuel Type
Mileage
-
Horsepower
-
Price
-
State / Region
Select a country to view available states.
Market Type
1-14 of 14 results
1-14 of 14 results
Western Star 49X Sleeper Semi Truck - 60" Mid Roof Sleeper, Detroit 600HP, 12 Speed Dt12 Amt
10 0

2026 Western Star 49X Sleeper Semi Truck - 60" Mid Roof Sleeper, Detroit 600HP, 12 Speed Dt12 Amt

Newly Listed
$222,650 USD
NEW ARRIVAL!!!! 2026 WESTERN STAR 49XSF!!! BIG HORSEPOWER!!!! 600HP DD16, 1850 TORQUE. HEAVY SPEC TRUCK!!! 46K REAR 16K FRONT. BEAUTIFUL TRUCK! COMFORTABLE TO DRIVE.! FEDERAL EXCISE...
ConditionNew
Usage500 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power600 HP
Engine ModelDetroit DD16
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeMid Roof Sleeper
Sleeper Size60"
SuspensionAirLiner
Rear AxleTandem Axle
Rear End46,000 lb 3.21 ratio
Stock Number109848
MLS Number13576732
CategorySleeper Semi Trucks
Last Updated5/15/2025
Location
Louisville, KY, US
Sold By

Boyd Truck Centers

Freightliner Cascadia 116 Day Cab Truck - Detroit 450HP
10 0

2026 Freightliner Cascadia 116 Day Cab Truck - Detroit 450HP

$152,058 USD
2026 Freightliner CA116 Day Cab, DD13 450 HP, DT12 Automated Transmission, 12,000 Front Axle, 40,000 Rear Axle, 182 Inch Wheelbase, PTO Capable, Nice Work Tractor!, Price Includes FET,
ConditionNew
Usage658 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDetroit DD13
Drivetrain6x4
Transmission12 Speed
SuspensionAirLiner
Rear AxleTandem Axle
Stock Number259661
MLS Number13562494
CategoryDay Cab Semi Trucks
Last Updated5/7/2025
Location
Tampa, FL, US
Sold By

Southport Truck Group

Freightliner Cascadia 116 Day Cab Truck - Detroit 450HP
10 0

2026 Freightliner Cascadia 116 Day Cab Truck - Detroit 450HP

$152,058 USD
2026 Freightliner CA116 Day Cab, DD13 450HP, DT12 Automated Manual, PTO Capable, 182" Wheelbase, 12,500 Front Axle, 40,000 Rear Axle, Full Locking Rears Both Axles, A Solid Work Tractor!,...
ConditionNew
Usage652 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDetroit DD13
Drivetrain6x4
Transmission12 Speed
SuspensionAirLiner
Rear AxleTandem Axle
Stock Number259659
MLS Number13562479
CategoryDay Cab Semi Trucks
Last Updated5/7/2025
Location
Fort Myers, FL, US
Sold By

Southport Truck Group

Freightliner Cascadia 116 Day Cab Truck - Detroit 450HP
10 0

2026 Freightliner Cascadia 116 Day Cab Truck - Detroit 450HP

$152,058 USD
2026 Freightliner CA116 Day Cab, DD13 450 HP, DT12 Automated Transmission, 12,000 Front Axle, 40,000 Rear Axle, 182 Inch Wheelbase, PTO Capable, Nice Work Tractor!, Price Includes FET,
ConditionNew
Usage635 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDetroit DD13
Drivetrain6x4
Transmission12 Speed
SuspensionAirLiner
Rear AxleTandem Axle
Stock Number259660
MLS Number13562426
CategoryDay Cab Semi Trucks
Last Updated5/7/2025
Location
Tampa, FL, US
Sold By

Southport Truck Group

Western Star 47X Tri Axle Dump Truck - Detroit 525HP, 12 Speed Dt12 Amt, 16' Dump
15 0

2025 Western Star 47X Tri Axle Dump Truck - Detroit 525HP, 12 Speed Dt12 Amt, 16' Dump

$226,925 USD
The truck is ready to work. 16 TCM STEEL DUMP BOOY With heavy duty Aeroforce tarp,
ConditionNew
Usage625 Miles
Duty ClassHeavy Duty Dump Truck
Bed Length16 ft.
Horse Power525 HP
Engine ModelDetroit DD13
Drivetrain8x4
Transmission12 Speed Detroit DT12 Automated
SuspensionTufTrac
Rear AxleTri Axle
Rear End46,000 lb 3.07 ratio
Stock Number109611
MLS Number13431099
CategoryDump Trucks
Last Updated4/19/2025
Location
Louisville, KY, US
Sold By

Boyd Truck Centers

Western Star 49X Tri Axle Roll Off Truck - Detroit, 525HP, 12 Speed Dt12 Amt
16 0

2025 Western Star 49X Tri Axle Roll Off Truck - Detroit, 525HP, 12 Speed Dt12 Amt

$271,226 USD
Ready to go Roll Off with Galbreath U75T-OR-174 75k cable hoist for 18'-22' containers,,
ConditionNew
Usage693 Miles
Duty ClassHeavy Duty Roll Off Truck
Horse Power525 HP
Engine ModelDetroit DD13
Drivetrain8x4
Transmission12 Speed Detroit DT12 Automated
SuspensionTufTrac
Rear AxleTri Axle
Rear End46,000 lb 3.73 ratio
Stock Number103113
MLS Number13430922
CategoryRoll Off Trucks
Last Updated4/19/2025
Location
Louisville, KY, US
Sold By

Boyd Truck Centers

2025 FREIGHTLINER CASCADIA 126 72" Raised Roof Double Bunk Sleeper
24 0

2025 FREIGHTLINER CASCADIA 126 72" Raised Roof Double Bunk Sleeper

$159,984 USD
2025 FREIGHTLINER CASCADIA 126 72 Raised Roof Sleeper Double Bunk, White Exterior Color, Engine: Detroit Diesel Dd15 14.8l, 505hp, Transmission: Detroit Dt12 12-Speed Automated Manual,...
ConditionNew
Usage2,511 Miles
Engine ModelDetroit
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
Stock NumberSSWE8707
MLS Number13218322
CategorySleeper Semi Trucks
Last Updated4/18/2025
Location
East Providence, RI, US
Sold By

Rhode Island Truck Center

Freightliner 114SD Roll Off Truck - Detroit, 470HP
14 0

2025 Freightliner 114SD Roll Off Truck - Detroit, 470HP

$229,883 USD
2025 Freightliner 114SD, DD13 470 HP, DT12 VOCATIONAL TRANSMISSION, 20,000 FRONT AXLE, 46,000 REAR AXLE, TUFTRAC SUSPENSION, GAL FAB 60-OR-174 ROLLOFF, PIONEER TARP, PRICE INCLUDES FET,
ConditionNew
Usage631 Miles
Duty ClassHeavy Duty Roll Off Truck
Horse Power470 HP
Drivetrain6x4
Transmission12 Speed
SuspensionTufTrac
Rear AxleTandem Axle
Rear End46,000 lb 3.42 ratio
Stock Number257379
MLS Number13519886
CategoryRoll Off Trucks
Last Updated4/16/2025
Location
Tampa, FL, US
Sold By

Southport Truck Group

Western Star 49X Day Cab Truck - Detroit 470HP
10 0

2026 Western Star 49X Day Cab Truck - Detroit 470HP

$153,556 USD
2026 Western Star 49X Day Cab, (5) Available, DD13 470 HP 1650 LB/FT, DT12 Vocational 12 Speed Automated Transmission, PTO for Hydraulic Pump, 13,300 LB Front Axle, 40,000 LB Rear Axle,...
ConditionNew
Usage660 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power470 HP
Engine ModelDetroit DD13
Drivetrain6x4
Transmission12 Speed
SuspensionAirLiner
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number259588
MLS Number13384145
CategoryDay Cab Semi Trucks
Last Updated4/16/2025
Location
Fort Myers, FL, US
Sold By

Southport Truck Group

Freightliner Cascadia 126 Day Cab Truck - Detroit 380HP, 12 Speed Dt12 Amt
8 0

2024 Freightliner Cascadia 126 Day Cab Truck - Detroit 380HP, 12 Speed Dt12 Amt

$139,900 USD
Nice light duty daycab available. HP can be bumped up to 505/1750,
ConditionNew
Usage2,712 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power380 HP
Engine ModelDetroit DD13
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number41377
MLS Number12610162
CategoryDay Cab Semi Trucks
Last Updated4/3/2025
Location
Westbrook, ME, US
Sold By

Freightliner of Maine

Western Star 47X Tri Axle Dump Truck - Detroit 525HP, 12 Speed Dt12 Amt, 16' Dump
15 0

2025 Western Star 47X Tri Axle Dump Truck - Detroit 525HP, 12 Speed Dt12 Amt, 16' Dump

$226,925 USD
The truck is ready to work. 16 TCM STEEL DUMP BOOY With heavy duty Aeroforce tarp,
ConditionNew
Usage625 Miles
Duty ClassHeavy Duty Dump Truck
Bed Length16 ft.
Horse Power525 HP
Engine ModelDetroit DD13
Drivetrain8x4
Transmission12 Speed Detroit DT12 Automated
SuspensionTufTrac
Rear AxleTri Axle
Rear End46,000 lb 3.07 ratio
MLS Number13431102
CategoryDump Trucks
Last Updated3/21/2025
Location
Louisville, KY, US
Sold By

Boyd Truck Centers

Western Star 49X Tri Axle Cab & Chassis Truck - Detroit, 505HP, 12 Speed Dt12 Amt
10 0

2025 Western Star 49X Tri Axle Cab & Chassis Truck - Detroit, 505HP, 12 Speed Dt12 Amt

$195,500 USD
ROLLOFF CHASSIS AVAILABLE!!!! DD13 with DT12 Automated transmissions. Call for more Details
ConditionNew
Usage525 Miles
Duty ClassHeavy Duty Cab & Chassis Truck
Horse Power505 HP
Engine ModelDetroit DD13
Drivetrain8x4
Transmission12 Speed Detroit DT12 Automated
SuspensionTufTrac
Rear AxleTri Axle
Rear End46,000 lb 3.73 ratio
Stock Number103282
MLS Number13197678
CategoryCab & Chassis Trucks
Last Updated3/11/2025
Location
Louisville, KY, US
Sold By

Boyd Truck Centers

Western Star 57X Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Amt
23 0

2025 Western Star 57X Sleeper Semi Truck - 72" Mid Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Amt

$193,400 USD
NEW!!! 57X MID ROOF FLATBED HAULER!!!! DD15/505hp, DT12 AUTOMATED TRANSMISSION with 60 MONTH/750,000 Mile Warranty. Call for more information
ConditionNew
Usage531 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power505 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeMid Roof Sleeper
Sleeper Size72"
SuspensionAirLiner
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock Number108920
MLS Number13184634
CategorySleeper Semi Trucks
Last Updated3/11/2025
Location
Louisville, KY, US
Sold By

Boyd Truck Centers

Western Star 47X Day Cab Truck - Detroit 525HP, 12 Speed Dt12 Amt
5 0

2026 Western Star 47X Day Cab Truck - Detroit 525HP, 12 Speed Dt12 Amt

$179,700 USD
New Arrival!!! The Ultimate Heavy Spec, light regional day cab tractor that will be up to any task! This beauty is a dream to drive, and is ready to set up for your application with a...
ConditionNew
Usage265 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power525 HP
Engine ModelDetroit DD13
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
SuspensionAirLiner
Rear AxleTandem Axle
Rear End46,000 lb 3.21 ratio
MLS Number13379441
CategoryDay Cab Semi Trucks
Last Updated3/11/2025
Location
Pikeville, KY, US
Sold By

Boyd Truck Centers

Did you find what you were looking for? Yes No