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2021 Freightliner Cascadia 126 Sleeper Semi Trucks For Sale

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Showing 1 - 25 of 309 Sleeper Semi Truck Listings

1 - 25 of 309 listings
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Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 505HP, 12 Speed Automatic

Price Drop $50,500 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck with 505 HP DD15AT engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle, 240 gal fuel capacity, air...
ConditionUsed
Usage594,423 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power505 HP
Engine ModelDD15AT
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock Number369887
MLS Number14245737
CategorySleeper Semi Trucks
Last Updated3/27/2026
Location
Houston, TX, US
Sold By
Penske Used Trucks
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Freightliner Cascadia Sleeper Semi Truck - 72" Extra-Tall Roof, Detroit, Automatic, Battery Powered HVAC with Optimized Idle

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

Recently Updated
$55,200 USD
ConditionUsed
Usage394,082 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelDetroit DD13 GHG 17
Drivetrain6x4
TransmissionDetroit DT12 Automatic
Sleeper TypeExtra Tall Sleeper
Sleeper Size72"
Rear AxleTandem Axle
Rear End2.28 ratio
Stock Number13369
MLS Number14220038
CategorySleeper Semi Trucks
Last Updated3/26/2026
Location
ATLANTA, GA, US
Sold By
Schneider
(833) 781-___  SHOW
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Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, Automatic

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

Recently Updated
$69,900 USD
LOW MILE 2021 Freightliner Cascadia! Only 281k Miles! 400hp DD15 Engine with a 10 Speed MANUAL Transmission. Large Deer Guard; Spacious 72in Double Bunk Sleeper with Refrigerator; TV and...
ConditionUsed
Usage281,406 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelDetroit DD15
Drivetrain6x4
TransmissionManual
Sleeper TypeRaised Roof Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.25 ratio
Stock Number8680375
MLS Number14171485
CategorySleeper Semi Trucks
Last Updated3/26/2026
Location
Wadsworth, IL, US
Sold By
JX Truck Center
(844) 985-___  SHOW
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Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

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

Recently Updated
$58,000 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck, 529,779 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, air ride...
ConditionUsed
Usage567,719 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 Number334649
MLS Number13881332
CategorySleeper Semi Trucks
Last Updated3/27/2026
Location
Lindon, UT, US
Sold By
Penske Used Trucks
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Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

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

Recently Updated
$51,500 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 603,094 miles, 455 HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,...
ConditionUsed
Usage603,096 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 Number334618
MLS Number13717193
CategorySleeper Semi Trucks
Last Updated3/26/2026
Location
Tampa, FL, US
Sold By
Penske Used Trucks
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Freightliner T12664ST Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

2021 Freightliner T12664ST Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

Recently Updated
$49,000 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 595,002 miles, 455HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle,...
ConditionUsed
Usage595,003 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 Number334575
MLS Number12845049
CategorySleeper Semi Trucks
Last Updated3/26/2026
Location
Nashville, TN, US
Sold By
Penske Used Trucks
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Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

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

Price Drop $48,750 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 618,300 miles, 455HP DD15AT diesel engine, 72" integral sleeper, 12-speed Detroit automatic transmission, 220-gallon fuel...
ConditionUsed
Usage620,015 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 Number334537
MLS Number13557309
CategorySleeper Semi Trucks
Last Updated3/26/2026
Location
La Mirada, CA, US
Sold By
Penske Used Trucks
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Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

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

Recently Updated
$57,250 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 488,645 miles, 400HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle....
ConditionUsed
Usage488,649 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelDD15AT
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.28 ratio
Stock NumberEPES21224
MLS Number13847472
CategorySleeper Semi Trucks
Last Updated3/26/2026
Location
Greensboro, NC, US
Sold By
Penske Used Trucks
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Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 400HP, 12 Speed Automatic

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

Recently Updated
$57,500 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 492,067 miles, 400HP DD15AT diesel engine, 72" integral sleeper, 12-speed Detroit automatic transmission, tandem rear axle,...
ConditionUsed
Usage492,073 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelDD15AT
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.28 ratio
Stock NumberEPES21162
MLS Number13867806
CategorySleeper Semi Trucks
Last Updated3/26/2026
Location
Greensboro, NC, US
Sold By
Penske Used Trucks
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Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

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

Price Drop $72,000 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck with 455HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle, air ride suspension....
ConditionUsed
Usage397,157 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 Number374206
MLS Number14250368
CategorySleeper Semi Trucks
Last Updated3/26/2026
Location
Oklahoma City, OK, US
Sold By
Penske Used Trucks
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Freightliner Cascadia Sleeper Semi Truck - 48" Extra-Tall Roof, Detroit, Automatic

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

Newly Listed
$51,500 USD
ConditionUsed
Usage351,698 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelDetroit DD15 EPA 17
Drivetrain6x4
TransmissionDetroit DT12 Automatic
Sleeper TypeExtra Tall Sleeper
Sleeper Size48"
Rear AxleTandem Axle
Rear End2.28 ratio
Stock Number20493
MLS Number14268508
CategorySleeper Semi Trucks
Last Updated3/26/2026
Location
ATLANTA, GA, US
Sold By
Schneider
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Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 400HP

2021 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 400HP

Price Drop $44,750 USD
Collision Mitigation, Lane Assist and Easy Financing Extended Warranty Available! This Maroon Elite Mid Roof has tons of chrome and polished aluminum to make this one shine! Powered by a...
ConditionUsed
Usage561,307 Miles
Horse Power400 HP
Engine ModelDetroit DD13
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.28 ratio
Capacity160 Gallons
WeightClass 8: 33,001 lb and above (14,969 kg and above)
Stock Number475528
MLS Number14103815
CategorySleeper Semi Trucks
Last Updated3/26/2026
Location
North Little Rock, AR, US
Sold By
Doggett
(877) 322-___  SHOW
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Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Automatic

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

Newly Listed
$36,900 USD
*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** AUTOMATIC!!!!! AIR RIDE, AIR SLIDE, ENGINE BRAKE, HSA OFF, ATC SPIN, , Se Habla Español! NO CREDIT? BAD CREDIT? NO PROBLEM!!...
ConditionUsed
Usage804,302 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automatic
Sleeper TypeRaised Roof Sleeper
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
Stock NumberL01761-VIRGIN TIRES
MLS Number14265058
CategorySleeper Semi Trucks
Last Updated3/25/2026
Location
Fontana, CA, US
Sold By
Diamond Truck Sales Inc
(855) 717-___  SHOW
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Diamond Truck Sales Inc
Freightliner Cascadia 126 Sleeper Semi Truck - 72" Raised Roof Sleeper, Detroit 455HP, 12 Speed Dt12 Amt

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

Recently Updated
$50,950 USD
N.A.P. New Style Cascadia, Air Release 5th Wheel, Auto Trans, Espar Bunk Heater, Invertor, Jumper Posts, LED Lights, Fridge, Sliding 5th Wheel, Alum Wheels, Well Maintained Fleet Truck, Oil...
ConditionUsed
Usage483,186 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.41 ratio
Stock Number3570
MLS Number14137282
CategorySleeper Semi Trucks
Last Updated3/25/2026
Location
GRANGER, IA, US
Sold By
Barr-Nunn Transportation LLC
(855) 910-___  SHOW
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Barr-Nunn Transportation LLC
Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

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

Recently Updated
$45,500 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 659,000 miles, 455HP DD15AT diesel engine, 12-speed automatic Detroit transmission, 72" integral sleeper, tandem rear axle,...
ConditionUsed
Usage659,000 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 Number372505
MLS Number14147283
CategorySleeper Semi Trucks
Last Updated3/25/2026
Location
Pell City, AL, US
Sold By
Penske Used Trucks
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Freightliner Cascadia 126 Sleeper Semi Truck - Raised Roof Sleeper, Detroit 400HP, Automatic

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

Price Drop $54,900 USD
*** ASK FOR LOW COST DELIVERY AVAILABLE TO ALL 48 STATES!! *** AUTOMATIC!!!!! AIR RIDE, K-PIN REL, AIR SLIDE, ENGINE BRAKE, SLPR DOME, AMBT LIGHT, DOME LIGHT, HSA OFF, ATC SPIN, LDW OFF,...
ConditionUsed
Usage528,206 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelDetroit DD15
Drivetrain6x4
Transmission12 Speed Detroit DT12 Automatic
Sleeper TypeRaised Roof Sleeper
Sleeper Size69"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.28 ratio
Stock NumberL01507-DELIVERY 2 U
MLS Number13781473
CategorySleeper Semi Trucks
Last Updated3/27/2026
Location
Fontana, CA, US
Sold By
Diamond Truck Sales Inc
(844) 900-___  SHOW
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Diamond Truck Sales Inc
Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 400HP

2021 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 400HP

Price Drop $27,900 USD
Add a 3 Month / 25,000 mile warranty for $1,500. 2021 Freightliner Cascadia 126 Powered by a DD15 Engine with 400hp and a DT12-12 Speed Automatic Transmission For Optimum Fuel Efficiency....
ConditionUsed
Usage808,833 Miles
Horse Power400 HP
Engine ModelDetroit DD15
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End2.16 ratio
Capacity240 Gallons
WeightClass 8: 33,001 lb and above (14,969 kg and above)
Stock Number469683
MLS Number13735149
CategorySleeper Semi Trucks
Last Updated3/25/2026
Location
El Paso, TX, US
Sold By
Doggett
(844) 333-___  SHOW
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Doggett
Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 400HP

2021 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 400HP

Price Drop $27,900 USD
Add a 90 day / 25,000 mile Warranty for $1,500.. 2021 Freightliner Cascadia 126 Powered by a Detroit DD15 Engine with 400hp and a Detroit DT12- 12 Speed Automatic Transmission for Optimum...
ConditionUsed
Usage825,460 Miles
Horse Power400 HP
Engine ModelDetroit DD15
Sleeper Size72"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.16 ratio
Capacity240 Gallons
WeightClass 8: 33,001 lb and above (14,969 kg and above)
Stock Number469650
MLS Number13774169
CategorySleeper Semi Trucks
Last Updated3/25/2026
Location
El Paso, TX, US
Sold By
Doggett
(844) 333-___  SHOW
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Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 400HP

2021 Freightliner Cascadia 126 Sleeper Semi Truck - Detroit 400HP

Newly Listed
$28,900 USD
2021 Freightliner Cascadia 126 Powered by a DD15 Engine with 400hp and Paired with a DT12-12 Speed Automatic Transmission for Optimum Fuel Efficiency. Dual 120 Gallon Diesel Fuel Tanks. A 72...
ConditionUsed
Usage848,712 Miles
Horse Power400 HP
Engine ModelDetroit DD15
SuspensionAir Ride
Rear AxleTandem Axle
Rear End2.16 ratio
Capacity240 Gallons
Weight52500
Stock Number477174
MLS Number14263826
CategorySleeper Semi Trucks
Last Updated3/25/2026
Location
El Paso, TX, US
Sold By
Doggett
(844) 333-___  SHOW
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Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

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

Recently Updated
$69,500 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 358,919 miles, 455HP DD15AT engine, 12-speed Detroit automatic transmission, 72" integral sleeper, tandem rear axle, air ride...
ConditionUsed
Usage362,057 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 3.23 ratio
Stock Number385904
MLS Number14159418
CategorySleeper Semi Trucks
Last Updated3/25/2026
Location
Cranbury, NJ, US
Sold By
Penske Used Trucks
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Freightliner Cascadia 126 Sleeper Semi Truck - 60" Integral Sleeper, 455HP, 12 Speed Automatic

2021 Freightliner Cascadia 126 Sleeper Semi Truck - 60" Integral Sleeper, 455HP, 12 Speed Automatic

Recently Updated
$66,000 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 417,513 miles, 455 HP DD15AT diesel engine, 12-speed Detroit automatic transmission, 60" integral sleeper, tandem rear axle,...
ConditionUsed
Usage417,515 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power455 HP
Engine ModelDD15AT
Transmission12 Speed Automatic
Sleeper TypeIntegral Sleeper
Sleeper Size60"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 3.23 ratio
Stock Number385901
MLS Number14233838
CategorySleeper Semi Trucks
Last Updated3/25/2026
Location
Cranbury, NJ, US
Sold By
Penske Used Trucks
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Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

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

Recently Updated
$49,750 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 587,005 miles, 455HP DD15AT diesel engine, 72" integral sleeper, 12-speed Detroit automatic transmission, tandem air ride...
ConditionUsed
Usage587,006 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 Number334491
MLS Number13876810
CategorySleeper Semi Trucks
Last Updated3/24/2026
Location
Piqua, OH, US
Sold By
Penske Used Trucks
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Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, 455HP, 12 Speed Automatic

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

Recently Updated
$55,750 USD
Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck with 72" integral sleeper, 455HP DD15AT diesel engine, 12-speed automatic transmission, tandem rear axle, air ride suspension. Check it...
ConditionUsed
Usage494,250 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 Number334478
MLS Number13865262
CategorySleeper Semi Trucks
Last Updated3/24/2026
Location
Apopka, FL, US
Sold By
Penske Used Trucks
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