Diesel Freightliner 12 Speed Trucks For Sale

(844) 693-___ SHOW
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19 0

2019 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$44,950 USD

First Class 8 Truck Sales is a full-service dealer offering high quality equipment, premium financing options, and an excellent customer experience. Call, click, or stop by and visit us...

Condition	Used
Usage	584,125 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	307
MLS Number	13398791
Category	Sleeper Semi Trucks
Last Updated	2/14/2025
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales

(833) 801-___ SHOW
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5 0

2017 Freightliner Cascadia 125 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

$13,000 USD

GREAT RUNNING TRUCK, CLEAN SHAPE, AIR SEATS, DOUBLE BUNK, DIFFERENTIAL LOCK, A/S 5TH, SUSPENSION GAUGE, POWER WINDOWS, POWER MIRRORS, HEATED MIRRORS, TILT/TELE! *HIGH MILEAGE TRUCK BUT RUNS...

Condition	Used
Usage	1,294,274 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automated
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.41 ratio
Stock Number	17DET129CAS
MLS Number	13398764
Category	Sleeper Semi Trucks
Last Updated	2/14/2025
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(866) 314-___ SHOW
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10 0

2016 Freightliner Cascadia 125 Sleeper Semi Truck - Detroit 400HP, 12 Speed Dt12 Automatic

$6,500 USD

runs and drives but has 3 injector seals leaking oil, auto, detroit engine, alllum wheels,

Condition	Used
Usage	950,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD15
Transmission	12 Speed Detroit DT12 Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.41 ratio
Stock Number	10638
MLS Number	13398752
Category	Sleeper Semi Trucks
Last Updated	2/14/2025
Location	LAKEVILLE, MN, US
Sold By	Manders Diesel

(702) 452-___ SHOW
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5 0

2022 Freightliner Cascadia 126 Sleeper Semi Truck - 70" Raised Roof Sleeper, Detroit 505HP, 12 Speed Dt12 Automatic

Call for price

CALL Ramiro Linares,

Condition	Used
Usage	336,711 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	70"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	L447
MLS Number	13398623
Category	Sleeper Semi Trucks
Last Updated	2/14/2025
Location	North Las Vegas, NV, US
Sold By	TCI Transportation

(702) 452-___ SHOW
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10 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 505HP, 12 Speed Dt12 Automatic

Call for price

443452 Miles, 505 HP, Fuel Type: Diesel, 12 Speed DT12 Automatic Transmission, Wheel Base: 229, Tandem Rear Axles

Quantity	10
Condition	Used
Usage	443,452 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Transmission	12 Speed Detroit DT12 Automatic
Rear Axle	Tandem Axle
Stock Number	L1385
MLS Number	13398620
Category	Sleeper Semi Trucks
Last Updated	2/14/2025
Location	North Las Vegas, NV, US
Sold By	TCI Transportation

(844) 912-___ SHOW
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9 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 400HP, 12 Speed Dt12 Automatic

$52,900 USD

*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** 12 speed auto!!! DEF, SLIDING 5TH WHEEL, ENGINE BRAKE, TRAILER BRAKE COLLISION MITIGATION Se Habla Español! NO CREDIT? BAD...

Condition	Used
Usage	579,958 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	H01579-DELIVERY 2 U
MLS Number	13398373
Category	Sleeper Semi Trucks
Last Updated	2/21/2025
Location	Houston, TX, US
Sold By	Diamond Truck Sales Inc

(844) 693-___ SHOW
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19 0

2019 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$45,950 USD

Ready to hit the road and go to work! First Class 8 Truck Sales is a full-service dealer offering high quality equipment, premium financing options, and an excellent customer experience....

Condition	Used
Usage	544,304 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	12 Speed Detroit DT12 Automatic
Sleeper Type	Raised Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	308
MLS Number	13398261
Category	Sleeper Semi Trucks
Last Updated	2/14/2025
Location	Belvidere, IL, US
Sold By	First Class 8 Truck Sales

22 0

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

Price Drop

$74,000 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;...

Condition	Used
Usage	530,946 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	428844
MLS Number	13372269
Category	Sleeper Semi Trucks
Last Updated	2/20/2025
Location	Piqua, OH, US
Sold By	Penske Used Trucks

24 0

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

Price Drop

$75,000 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;...

Condition	Used
Usage	517,415 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	428839
MLS Number	13312179
Category	Sleeper Semi Trucks
Last Updated	2/20/2025
Location	Piqua, OH, US
Sold By	Penske Used Trucks

23 0

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

Price Drop

$65,000 USD

SPECIAL PROMOTION - Original Price: $68000.00 Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We...

Condition	Used
Usage	552,951 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	420977
MLS Number	13271167
Category	Sleeper Semi Trucks
Last Updated	2/14/2025
Location	East Chicago, IN, US
Sold By	Penske Used Trucks

18 0

2022 Freightliner Cascadia 126 Day Cab Truck - 435HP, 12 Speed Automatic

$53,000 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;...

Condition	Used
Usage	565,608 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	435 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Sleeper Size	0"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	415309
MLS Number	13360040
Category	Day Cab Semi Trucks
Last Updated	2/20/2025
Location	Swedesboro, NJ, US
Sold By	Penske Used Trucks

18 0

2022 Freightliner Cascadia 126 Single Axle Day Cab Truck - 410HP, 12 Speed Automatic

Price Drop

$50,250 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;...

Condition	Used
Usage	575,364 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	410 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Sleeper Size	0"
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	23,000 lb 3.21 ratio
Stock Number	403213
MLS Number	13231526
Category	Day Cab Semi Trucks
Last Updated	2/20/2025
Location	Cranbury, NJ, US
Sold By	Penske Used Trucks

16 0

2021 Freightliner Cascadia 126 Single Axle Day Cab Truck - 410HP, 12 Speed Automatic

$66,750 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;...

Condition	Used
Usage	325,521 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	410 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Sleeper Size	0"
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	23,000 lb 3.08 ratio
Stock Number	400242
MLS Number	13055448
Category	Day Cab Semi Trucks
Last Updated	2/20/2025
Location	Daytona Beach, FL, US
Sold By	Penske Used Trucks

18 0

2021 Freightliner Cascadia 126 Day Cab Truck - 470HP, 12 Speed Automatic

$82,250 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;...

Condition	Used
Usage	216,587 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	470 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	378600
MLS Number	13398082
Category	Day Cab Semi Trucks
Last Updated	2/15/2025
Location	Katy, TX, US
Sold By	Penske Used Trucks

23 0

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

$84,750 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;...

Condition	Used
Usage	183,774 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Size	0"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	384610
MLS Number	13290640
Category	Day Cab Semi Trucks
Last Updated	2/20/2025
Location	West Sacramento, CA, US
Sold By	Penske Used Trucks

30 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

$80,500 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;...

Condition	Used
Usage	365,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.28 ratio
Stock Number	EPES21025
MLS Number	13398053
Category	Sleeper Semi Trucks
Last Updated	2/15/2025
Location	Greensboro, NC, US
Sold By	Penske Used Trucks

25 0

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

$54,500 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;...

Condition	Used
Usage	633,075 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	373367
MLS Number	13398049
Category	Sleeper Semi Trucks
Last Updated	2/14/2025
Location	Whitesboro, NY, US
Sold By	Penske Used Trucks

23 0

2020 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Price Drop

$65,500 USD

SPECIAL PROMOTION - Original Price: $68500.00 Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being well-maintained. We...

Condition	Used
Usage	451,964 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	373245
MLS Number	13293545
Category	Sleeper Semi Trucks
Last Updated	2/22/2025
Location	Memphis, TN, US
Sold By	Penske Used Trucks

23 0

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

$62,000 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;...

Condition	Used
Usage	624,820 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	368861
MLS Number	13398019
Category	Sleeper Semi Trucks
Last Updated	2/14/2025
Location	Decatur, AL, US
Sold By	Penske Used Trucks

18 0

2020 Freightliner T12664ST Day Cab Truck - 435HP, 12 Speed Automatic

$42,500 USD

SPECIAL PROMOTION - Original Price: $49500.00 ;MANAGERS SPECIAL Purchase your vehicle from the leader in the leasing industry. Penske vehicles have the reputation of quality and being...

Condition	Used
Usage	501,907 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	435 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	349960
MLS Number	12383214
Category	Day Cab Semi Trucks
Last Updated	2/19/2025
Location	Davenport, IA, US
Sold By	Penske Used Trucks

23 0

2020 Freightliner Cascadia 116 Single Axle Day Cab Truck - 435HP, 12 Speed Automatic

$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;...

Condition	Used
Usage	467,655 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	435 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	40,000 lb 2.41 ratio
Stock Number	3330230
MLS Number	13398017
Category	Day Cab Semi Trucks
Last Updated	2/18/2025
Location	Indianapolis, IN, US
Sold By	Penske Used Trucks

25 0

2020 Freightliner T12664ST Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

$53,500 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;...

Condition	Used
Usage	686,969 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	351427
MLS Number	12805325
Category	Sleeper Semi Trucks
Last Updated	2/22/2025
Location	Cincinnati, OH, US
Sold By	Penske Used Trucks

21 0

2020 Freightliner Cascadia 125 Day Cab Truck - 455HP, 12 Speed Automatic

$40,750 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;...

Condition	Used
Usage	501,296 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	455 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Size	0"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.47 ratio
Stock Number	302298
MLS Number	12701221
Category	Day Cab Semi Trucks
Last Updated	2/22/2025
Location	Londonderry, NH, US
Sold By	Penske Used Trucks