2021 Freightliner Cascadia 126 Sleeper Semi Trucks For Sale

26 - 50 of 116 listings

2021 Freightliner Cascadia Sleeper Semi Truck - 48" Extra-Tall Roof, Detroit, Automatic

Newly Listed

$54,000 USD

Condition	Used
Usage	428,338 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD15 EPA 17
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Extra Tall Sleeper
Sleeper Size	48"
Rear Axle	Tandem Axle
Rear End	2.28 ratio
Stock Number	20559
MLS Number	14554865
Category	Sleeper Semi Trucks
Last Updated	8/20/2026
Location	Gary, IN, US
Sold By	Schneider

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2021 Freightliner Cascadia Sleeper Semi Truck - 48" Extra-Tall Roof, Detroit, Automatic

Newly Listed

$54,000 USD

Condition	Used
Usage	426,627 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD15 EPA 17
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Extra Tall Sleeper
Sleeper Size	48"
Rear Axle	Tandem Axle
Rear End	2.28 ratio
Stock Number	20561
MLS Number	14554864
Category	Sleeper Semi Trucks
Last Updated	8/21/2026
Location	Gary, IN, US
Sold By	Schneider

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2021 Freightliner Cascadia Sleeper Semi Truck - 48" Extra-Tall Roof, Detroit, Automatic

Newly Listed

$48,000 USD

Condition	Used
Usage	487,781 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD15 EPA 17
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Extra Tall Sleeper
Sleeper Size	48"
Rear Axle	Tandem Axle
Rear End	2.28 ratio
Stock Number	20592
MLS Number	14554862
Category	Sleeper Semi Trucks
Last Updated	8/20/2026
Location	Shrewsbury, MA, US
Sold By	Schneider

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2021 Freightliner Cascadia 126 Sleeper Semi Truck - 37" Condo Sleeper, 455HP, 12 Speed Automatic

Newly Listed

$49,250 USD

Condition	Used
Usage	712,005 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15 GHG'17 455/1650
Transmission	12 Speed
Sleeper Type	Condo Sleeper
Sleeper Size	37"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.08 ratio
Stock Number	899805
MLS Number	14553911
Category	Sleeper Semi Trucks
Last Updated	8/19/2026
Location	Birmingham, AL, US
Sold By	Ryder

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

Recently Updated

$60,750 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 587,601 miles, 455 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	615,405 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	372070
MLS Number	13541843
Category	Sleeper Semi Trucks
Last Updated	8/25/2026
Location	Torrance, CA, US
Sold By	Penske Used Trucks

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

Recently Updated

$77,750 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 438,458 miles, 400HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle....

Condition	Used
Usage	448,141 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	EPES21272
MLS Number	14514381
Category	Sleeper Semi Trucks
Last Updated	8/22/2026
Location	Longview, TX, US
Sold By	Penske Used Trucks

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

Recently Updated

$59,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 625,514 miles, 400HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...

Condition	Used
Usage	628,769 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	EPES21271
MLS Number	14531770
Category	Sleeper Semi Trucks
Last Updated	8/22/2026
Location	Shreveport, LA, US
Sold By	Penske Used Trucks

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

Newly Listed

$47,523 USD

Condition	Used
Usage	731,631 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15 GHG'17 455/1650
Transmission	12 Speed Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.08 ratio
Stock Number	232665
MLS Number	14549754
Category	Sleeper Semi Trucks
Last Updated	8/18/2026
Location	Orlando, FL, US
Sold By	Ryder

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

Recently Updated

$41,000 USD

Condition	Used
Usage	915,099 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15 GHG'17 455/1500
Transmission	12 Speed Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.85 ratio
Stock Number	549679
MLS Number	14435863
Category	Sleeper Semi Trucks
Last Updated	8/18/2026
Location	Phoenix, AZ, US
Sold By	Ryder

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2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Condo Sleeper, 455HP, 10 Speed Manual

Recently Updated

$65,616 USD

Condition	Used
Usage	532,040 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15 GHG'17 455/1650
Transmission	10 Speed Manual
Sleeper Type	Condo Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.36 ratio
Stock Number	261706
MLS Number	14375398
Category	Sleeper Semi Trucks
Last Updated	8/18/2026
Location	Bolingbrook, IL, US
Sold By	Ryder

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2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Condo Sleeper, 455HP, 10 Speed Manual

Recently Updated

$57,539 USD

Condition	Used
Usage	621,791 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15 GHG'17 455/1650
Transmission	10 Speed Manual
Sleeper Type	Condo Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.36 ratio
Stock Number	261878
MLS Number	14331660
Category	Sleeper Semi Trucks
Last Updated	8/18/2026
Location	Bolingbrook, IL, US
Sold By	Ryder

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

Recently Updated

$70,471 USD

Condition	Used
Usage	493,271 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	DD15 GHG'17 455/1650
Transmission	12 Speed
Sleeper Type	Mid Roof Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	2.85 ratio
Stock Number	286292
MLS Number	14521675
Category	Sleeper Semi Trucks
Last Updated	8/19/2026
Location	Oak Creek, WI, US
Sold By	Ryder

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2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

$79,900 USD

404389 Miles, 10977 Hours, Engine: DETROIT DD15, 455 HP, Fuel Type: Diesel, 12 Speed DT12 Automatic Transmission, Drive: 6x4, Overdrive, 4 Bag Air Ride Suspension, Sleeper Type: Raised Roof...

Condition	Used
Usage	10,977 Hours
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	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	1758
MLS Number	14532551
Category	Sleeper Semi Trucks
Last Updated	8/18/2026
Location	Fontana, CA, US
Sold By	Yerevan Truck & Equipment Sales

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2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 475HP, 12 Speed Automatic

$75,500 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 475 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, 13300 lbs front...

Condition	Used
Usage	441,654 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	475 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	390286
MLS Number	14358406
Category	Sleeper Semi Trucks
Last Updated	8/25/2026
Location	Hazleton, PA, US
Sold By	Penske Used Trucks

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

$60,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 592,223 miles, 455HP DD15AT diesel engine, 72" integral sleeper, 12-speed Detroit automatic transmission, tandem rear axle....

Condition	Used
Usage	611,827 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	355335
MLS Number	13635024
Category	Sleeper Semi Trucks
Last Updated	8/25/2026
Location	Grand Prairie, TX, US
Sold By	Penske Used Trucks

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

$49,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck with 72" integral sleeper, 455 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, tandem rear axle, air ride suspension,...

Condition	Used
Usage	741,675 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	334540
MLS Number	14030464
Category	Sleeper Semi Trucks
Last Updated	8/25/2026
Location	Sellersburg, IN, US
Sold By	Penske Used Trucks

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2021 Freightliner Cascadia 126 Sleeper Semi Truck - 60" Integral Sleeper, 505HP, 12 Speed Automatic

$70,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 505,768 miles, 505 HP DD15AT diesel engine, 60" integral sleeper, 12-speed Detroit automatic transmission, tandem rear axle,...

Condition	Used
Usage	518,331 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	DD15AT
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	60"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	375860
MLS Number	14437411
Category	Sleeper Semi Trucks
Last Updated	8/25/2026
Location	Fort Worth, TX, US
Sold By	Penske Used Trucks

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2021 Freightliner Cascadia 126 Single Axle Sleeper Semi Truck - 72" Integral Sleeper, 450HP, 12 Speed Automatic

$73,500 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 343,988 miles, 450HP DD13 diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, single rear axle,...

Condition	Used
Usage	344,024 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	DD13
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	23,000 lb 3.08 ratio
Stock Number	374531
MLS Number	14399142
Category	Sleeper Semi Trucks
Last Updated	8/23/2026
Location	Lexington, SC, US
Sold By	Penske Used Trucks

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2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, Cummins 450HP, 10 Speed Automatic

$52,000 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck, 450 HP Cummins X15 engine, 10-speed Eaton automatic transmission, 72" integral sleeper, tandem rear axle, air ride suspension, 676,948...

Condition	Used
Usage	691,881 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	10 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.55 ratio
Stock Number	373884
MLS Number	14459204
Category	Sleeper Semi Trucks
Last Updated	8/25/2026
Location	Kansas City, MO, US
Sold By	Penske Used Trucks

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2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, Cummins 450HP, 10 Speed Automatic

$50,500 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 723,631 miles, Cummins X15 diesel engine, 450 HP, 72" integral sleeper, 10-speed Eaton automatic transmission. Check it out.

Condition	Used
Usage	730,618 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	10 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	72"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.55 ratio
Stock Number	369470
MLS Number	14504315
Category	Sleeper Semi Trucks
Last Updated	8/25/2026
Location	Pensacola, FL, US
Sold By	Penske Used Trucks

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2021 Freightliner Cascadia Sleeper Semi Truck - 72" Extra-Tall Roof, Detroit, Automatic, Battery Powered HVAC with Optimized Idle, Bulk Equipment

$68,200 USD

Condition	Used
Usage	382,926 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD13 GHG 17
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Extra Tall Sleeper
Sleeper Size	72"
Rear Axle	Tandem Axle
Rear End	2.28 ratio
Stock Number	13361
MLS Number	14547805
Category	Sleeper Semi Trucks
Last Updated	8/18/2026
Location	Charlotte, NC, US
Sold By	Schneider

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2021 Freightliner Cascadia Sleeper Semi Truck - 72" Extra-Tall Roof, Detroit, Automatic, Battery Powered HVAC with Optimized Idle

$59,200 USD

Condition	Used
Usage	413,915 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Detroit DD13 GHG 17
Drivetrain	6x4
Transmission	Detroit DT12 Automatic
Sleeper Type	Extra Tall Sleeper
Sleeper Size	72"
Rear Axle	Tandem Axle
Rear End	2.28 ratio
Stock Number	13654
MLS Number	14547804
Category	Sleeper Semi Trucks
Last Updated	8/19/2026
Location	Carlisle, PA, US
Sold By	Schneider

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2021 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 455HP, Automatic

$77,995 USD

FINANCING AVAILABLE FOR ALL CREDIT TYPES, ZERO DOWN AVAILABLE ON APPROVED CREDIT, FIRST TIME BUYERS WELCOME, EXTENDED WARRANTIES AVAILABLE, TRADE INS WELCOME, NATIONWIDE DELIVERY AVAILABLE...

Condition	Used
Usage	416,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Detroit DD15
Drivetrain	6x4
Transmission	Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	4030
MLS Number	14547076
Category	Sleeper Semi Trucks
Last Updated	8/17/2026
Location	Fontana, CA, US
Sold By	Fontana Truck Outlet

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

$47,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck, 750,165 miles, 455 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, 13,300 lbs front axle,...

Condition	Used
Usage	770,096 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	363866
MLS Number	14430028
Category	Sleeper Semi Trucks
Last Updated	8/23/2026
Location	Conyers, GA, US
Sold By	Penske Used Trucks

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

$71,750 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck, 483,138 miles, 455HP DD15AT diesel engine, 72" integral sleeper, 12-speed automatic Detroit transmission, tandem rear axle, air ride...

Condition	Used
Usage	483,138 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	334424
MLS Number	14546678
Category	Sleeper Semi Trucks
Last Updated	8/22/2026
Location	Warren, MI, US
Sold By	Penske Used Trucks

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2021 Freightliner Cascadia 126 Sleeper Semi Trucks For Sale

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