12 Speed 6x2 Trucks with Detroit Engines For Sale

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For Sale (21)
1-21 of 21 results
1-21 of 21 results
Freightliner Cascadia 116 Day Cab Truck - Detroit 410HP, Automatic
19 1

2020 Freightliner Cascadia 116 Day Cab Truck - Detroit 410HP, Automatic

Price Drop
$39,900 USD
442,432 Miles, Detroit DD13 Engine upgradewd to 475 H.P, Engine Brake, DT12 Automatic, 6x2, 12,500 Fronts, 20k Rears w/20k Air Tag Axle, 3.21 Ratio, Air Ride, Power Steering, 200" WB,...
ConditionUsed
Usage442,432 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power475 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.21 ratio
Stock NumberLT8583
MLS Number13586545
CategoryDay Cab Semi Trucks
Last Updated7/14/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

Freightliner Cascadia 126 Sleeper Semi Truck
26 1

2021 Freightliner Cascadia 126 Sleeper Semi Truck

$46,000 USD
679,793 Miles, DD15 Detroit, DT12 Automatic, Fleet Maintained, Double Bunk Sleeper, Fridge, Collision Mitigation System, Bluetooth, Inter-Axle Lock, Air Slide, Air Suspension Dump, Power...
ConditionUsed
Usage679,793 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelDetroit DD15
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb
Stock NumberMA9737
MLS Number13463913
CategorySleeper Semi Trucks
Last Updated7/9/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

Freightliner Cascadia 125 Day Cab Truck - Detroit 435HP, 12 Speed Dt12 Amt
8 1

2015 Freightliner Cascadia 125 Day Cab Truck - Detroit 435HP, 12 Speed Dt12 Amt

Price Drop
$23,900 USD
417,949 Miles, DD13 435 HP, DT12 Automated HD, 3.25 Ratio, 178" WB, 12,000# Fronts, 40,000# Rears, Air Slide 5th Wheel, Inter-Axle Lock, Air Suspension Dump, Power Windows/Mirrors,
ConditionUsed
Usage417,949 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power435 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock NumberGC9807
MLS Number13502023
CategoryDay Cab Semi Trucks
Last Updated7/4/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Automatic
6 0

2020 Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Automatic

$44,900 USD
Contact sergio,
Quantity6
ConditionUsed
Usage671,386 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Stock Number20392
MLS Number13680172
CategoryDay Cab Semi Trucks
Last Updated7/13/2025
Location
Fontana, CA, US
Sold By

TCI Transportation

Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Automatic
10 0

2020 Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Automatic

$47,900 USD
Lightweight 15,240# perfect for fuel haulers.... Located in San Antonio,
Quantity17
ConditionUsed
Usage598,614 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb
Stock Number20391
MLS Number13680168
CategoryDay Cab Semi Trucks
Last Updated7/13/2025
Location
Fontana, CA, US
Sold By

TCI Transportation

Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Automatic
10 0

2020 Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Automatic

$44,900 USD
(15) Matched units, lightweight fuel haulers 6X2,
Quantity2
ConditionUsed
Usage671,387 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Stock NumberL20392
MLS Number12622928
CategoryDay Cab Semi Trucks
Last Updated7/13/2025
Location
Fontana, CA, US
Sold By

TCI Transportation

Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Amt
11 0

2018 Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Amt

$39,900 USD
Freshly back from full detail ready to roll!, Super clean day-cab with Detroit DD13 power matched with a Detroit DT12 amt transmission!, Brand New Aluminum Drive Wheels, Truck was DOT'D and...
ConditionUsed
Usage294,623 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automated
SuspensionAirLiner
Rear AxleTandem Axle
Rear End40,000 lb 2.41 ratio
Stock Number280932
MLS Number13601443
CategoryDay Cab Semi Trucks
Last Updated6/28/2025
Location
Smithfield, PA, US
Sold By

Hunter Truck

Freightliner Cascadia 126 Sleeper Semi Truck - 68" Mid Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic
46 1

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 68" Mid Roof Sleeper, Detroit 450HP, 12 Speed Dt12 Automatic

$53,900 USD
*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** 12 SPEED AUTOMATIC!!! DEF, ENGINE BRAKE, SLIDING 5TH WHEEL, TRAILER BRAKE, Se Habla Español! NO CREDIT? BAD CREDIT? NO...
ConditionUsed
Usage528,901 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automatic
Sleeper TypeMid Roof Sleeper
Sleeper Size68"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End2.85 ratio
Stock NumberB03579-DELIVERY 2 U
MLS Number13574437
CategorySleeper Semi Trucks
Last Updated6/20/2025
Location
Bakersfield, CA, US
Sold By

Diamond Truck Sales Inc

Freightliner Cascadia 125 Day Cab Truck - Detroit 450HP, 12 Speed Automatic
31 1

2020 Freightliner Cascadia 125 Day Cab Truck - Detroit 450HP, 12 Speed Automatic

$35,900 USD
*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** AIR RIDE, DEF, LANE ALERT, ATC Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7 DAYS A WEEK!!!! Disclaimer:, “All...
ConditionUsed
Usage537,051 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Rear End3.25 ratio
Stock NumberN14985-DELIVERY 2 U
MLS Number13555580
CategoryDay Cab Semi Trucks
Last Updated6/20/2025
Location
Turlock, CA, US
Sold By

Diamond Truck Sales Inc

Freightliner Cascadia 125 Day Cab Truck - Detroit 450HP, 12 Speed Automatic
26 1

2020 Freightliner Cascadia 125 Day Cab Truck - Detroit 450HP, 12 Speed Automatic

$35,900 USD
*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** AIR RIDE, DEF, LANE ALERT, ATC Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!! OPEN 7 DAYS A WEEK!!!! Disclaimer:, “All...
ConditionUsed
Usage557,888 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Stock NumberN14984-DELIVERY 2 U
MLS Number13552753
CategoryDay Cab Semi Trucks
Last Updated6/20/2025
Location
Turlock, CA, US
Sold By

Diamond Truck Sales Inc

Freightliner Cascadia 126 Sleeper Semi Truck
22 1

2022 Freightliner Cascadia 126 Sleeper Semi Truck

$56,900 USD
619,130 Miles, DD15 Detroit, 400 HP, DT12 Automated, Fridge, Double Bunk Condo, Very Clean Unit, 2.16 Ratio, 225" WB, Collision Mitigation, APU, Inverter, Air Ride, Inter-Axle Lock, Air...
ConditionUsed
Usage619,130 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelDetroit DD15
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End2.16 ratio
Stock NumberNC1258
MLS Number13463918
CategorySleeper Semi Trucks
Last Updated6/12/2025
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

Freightliner Cascadia 113 Sleeper Semi Truck - 78" Raised Roof Sleeper, Detroit, 12 Speed Autoshift Amt
5 0

2016 Freightliner Cascadia 113 Sleeper Semi Truck - 78" Raised Roof Sleeper, Detroit, 12 Speed Autoshift Amt

$29,900 USD
600799 Miles, Engine: DETROIT DD13, Fuel Type: Diesel, 12 Speed Autoshift AMT Transmission, Drive: 6x2, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 78, Tandem Rear...
ConditionUsed
Usage600,799 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Engine ModelDetroit DD13
Emission RatingUSA Tier 4 Final
Drivetrain6x2
Transmission12 Speed Autoshift Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size78"
SuspensionAir Ride
Rear AxleTandem Axle
Stock NumberFM6539
MLS Number13562434
CategorySleeper Semi Trucks
Last Updated6/6/2025
Location
Lancaster, CA, US
Sold By

TFS Recovery, Inc.

Freightliner Cascadia 125 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Amt
25 0

2017 Freightliner Cascadia 125 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Amt

$11,000 USD
GOOD TRUCK, RUNS GREAT, FLEET MAINTAINED, AIR SEAT, AIR BRAKES, TILT/TELE, POWER WINDOWS, POWER MIRRORS, HEATED MIRRORS, DIFFERENTIAL LOCK, DUMP VALVE, SLIDING 5TH WHEEL! WELL MAINTANED...
ConditionUsed
Usage807,245 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.50 ratio
Stock Number17DET807CASDC
MLS Number13616795
CategoryDay Cab Semi Trucks
Last Updated5/31/2025
Location
Covington, TN, US
Sold By

Don Baskin Truck Sales

Freightliner Cascadia 125 Sleeper Semi Truck - 78" Raised Roof Sleeper, Detroit, 12 Speed Autoshift Amt
35 0

2016 Freightliner Cascadia 125 Sleeper Semi Truck - 78" Raised Roof Sleeper, Detroit, 12 Speed Autoshift Amt

Call for price
Engine: DETROIT DD13, Fuel Type: Diesel, 12 Speed Autoshift AMT Transmission, Drive: 6x2, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 78, Tires: 22.5, Wheels:...
ConditionUsed
Duty ClassHeavy Duty Sleeper Semi Truck
Engine ModelDetroit DD13
Emission RatingUSA Tier 4 Final
Drivetrain6x2
Transmission12 Speed Autoshift Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size78"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb
Stock NumberGV4840
MLS Number13433684
CategorySleeper Semi Trucks
Last Updated4/23/2025
Location
Elgin, IL, US
Sold By

TFS Recovery, Inc.

Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Manual
2 0

2020 Freightliner Cascadia 126 Day Cab Truck - Detroit 450HP, 12 Speed Dt12 Manual

$40,900 USD
Lightweight spec’d day cab powered by a Detroit DD13, DT12 automatic transmission, and a 3.07 rear ratio—perfect for maximizing payload, especially for tankers. This unit has 671,387 miles...
ConditionUsed
Usage671,387 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Manual
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb
Stock Number203302
MLS Number13452961
CategoryDay Cab Semi Trucks
Last Updated7/13/2025
Location
Humble, TX, US
Sold By

TCI Transportation

Freightliner Cascadia 125 Day Cab Truck - Detroit 410HP, 12 Speed Dt12 Amt
4 0

2015 Freightliner Cascadia 125 Day Cab Truck - Detroit 410HP, 12 Speed Dt12 Amt

$12,000 USD
nice truck, runs great, clean, air seat, dump valve, differential lock, well maintained (YELLOW FLEET), power windows, power mirrors, heated mirrors,,
ConditionUsed
Usage750,279 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End2.50 ratio
Stock Number15YEL750CASDC
MLS Number12847602
CategoryDay Cab Semi Trucks
Last Updated1/15/2025
Location
Covington, TN, US
Sold By

Don Baskin Truck Sales

Freightliner Cascadia 125 Day Cab Truck - Detroit 410HP, 12 Speed Dt12 Amt
18 1

2015 Freightliner Cascadia 125 Day Cab Truck - Detroit 410HP, 12 Speed Dt12 Amt

$12,000 USD
nice truck, runs great, clean, air seat, dump valve, differential lock, well maintained (YELLOW FLEET), power windows, power mirrors, heated mirrors,,
ConditionUsed
Usage769,815 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End2.50 ratio
Stock Number15YEL769CASDC
MLS Number12808254
CategoryDay Cab Semi Trucks
Last Updated1/15/2025
Location
Covington, TN, US
Sold By

Don Baskin Truck Sales

Freightliner Cascadia 125 Day Cab Truck - Detroit 410HP, 12 Speed Dt12 Amt
4 0

2017 Freightliner Cascadia 125 Day Cab Truck - Detroit 410HP, 12 Speed Dt12 Amt

$12,500 USD
nice truck, runs great, clean, air seat, dump valve, differential lock, well maintained (YELLOW FLEET), power windows, power mirrors, heated mirrors,,
ConditionUsed
Usage824,573 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End2.50 ratio
Stock Number17YEL824CASDC
MLS Number12843503
CategoryDay Cab Semi Trucks
Last Updated1/14/2025
Location
Covington, TN, US
Sold By

Don Baskin Truck Sales

Freightliner Cascadia 125 Day Cab Truck - Detroit 410HP, 12 Speed Dt12 Amt
3 0

2017 Freightliner Cascadia 125 Day Cab Truck - Detroit 410HP, 12 Speed Dt12 Amt

$12,500 USD
nice truck, runs great, clean, air seat, dump valve, differential lock, well maintained (YELLOW FLEET), power windows, power mirrors, heated mirrors,,
ConditionUsed
Usage860,167 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End2.50 ratio
Stock Number17YEL860CASDC
MLS Number12804100
CategoryDay Cab Semi Trucks
Last Updated1/14/2025
Location
Covington, TN, US
Sold By

Don Baskin Truck Sales

Freightliner Cascadia 125 Day Cab Truck - Detroit 410HP, 12 Speed Dt12 Amt
17 0

2016 Freightliner Cascadia 125 Day Cab Truck - Detroit 410HP, 12 Speed Dt12 Amt

$13,000 USD
nice truck, runs great, clean, air seat, dump valve, differential lock, well maintained (YELLOW FLEET), power windows, power mirrors, heated mirrors,,
ConditionUsed
Usage661,822 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End2.50 ratio
Stock Number16DET661CASDC
MLS Number13305853
CategoryDay Cab Semi Trucks
Last Updated1/12/2025
Location
Covington, TN, US
Sold By

Don Baskin Truck Sales

Freightliner Cascadia 125 Day Cab Truck - Detroit 410HP, 12 Speed Dt12 Amt
17 1

2017 Freightliner Cascadia 125 Day Cab Truck - Detroit 410HP, 12 Speed Dt12 Amt

$12,000 USD
nice truck, runs great, clean, air seat, dump valve, differential lock, well maintained (YELLOW FLEET), power windows, power mirrors, heated mirrors,,
ConditionUsed
Usage821,777 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power410 HP
Engine ModelDetroit DD13
Drivetrain6x2
Transmission12 Speed Detroit DT12 Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End2.50 ratio
Stock Number17YEL821CASDC
MLS Number12753915
CategoryDay Cab Semi Trucks
Last Updated12/31/2024
Location
Covington, TN, US
Sold By

Don Baskin Truck Sales

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