Used 12 Speed Trucks with Cummins Engines For Sale

2023 Freightliner Cascadia 126 Sleeper Semi Truck - 72" Integral Sleeper, Cummins 470HP, 12 Speed Automatic

$68,750 USD

Used 2023 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 571,173 miles, 470 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, 72" integral sleeper, tandem rear...

Condition	Used
Usage	587,197 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	470 HP
Engine Model	Cummins X15
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	199199
MLS Number	14016277
Category	Sleeper Semi Trucks
Last Updated	1/25/2026
Location	Anaheim, CA, US
Sold By	Penske Used Trucks

2022 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

$47,500 USD

Used 2022 International LT625 Sleeper Semi Truck for sale, 555,401 miles, Cummins X15 diesel engine with 450 HP, 73" integral sleeper, 12-speed Eaton automatic transmission, tandem rear axle...

Condition	Used
Usage	555,426 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	454894
MLS Number	14015960
Category	Sleeper Semi Trucks
Last Updated	1/25/2026
Location	San Antonio, TX, US
Sold By	Penske Used Trucks

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

$82,250 USD

Used 2021 Freightliner Cascadia 126 Sleeper Semi Truck for sale, 237,315 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 72" integral sleeper, tandem rear axle...

Condition	Used
Usage	237,315 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
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	382292
MLS Number	14092124
Category	Sleeper Semi Trucks
Last Updated	1/28/2026
Location	Richland, MS, US
Sold By	Penske Used Trucks

2020 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Price Drop $36,500 USD

Used 2020 International LT625 Sleeper Semi Truck for sale, 597,391 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	607,050 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	359649
MLS Number	14071766
Category	Sleeper Semi Trucks
Last Updated	1/25/2026
Location	Las Vegas, NV, US
Sold By	Penske Used Trucks

2019 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

$24,750 USD

Used 2019 International LT625 Sleeper Semi Truck for sale, 734,427 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 73” integral sleeper, tandem rear axle,...

Condition	Used
Usage	734,427 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.25 ratio
Stock Number	332580
MLS Number	14091665
Category	Sleeper Semi Trucks
Last Updated	1/28/2026
Location	El Paso, TX, US
Sold By	Penske Used Trucks

(609) 318-___ SHOW
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2023 Peterbilt 567 Sleeper Semi Truck

$119,900 USD

Balance of FACTORY WARRANTY / Financing Available Balance of 5yr/400,000 mile Engine, Aftertreatment, Base Vehicle transfers to new owner!!! 2023 PETERBILT 567 58" SLEEPER, PLEASE CALL...

Condition	Used
Usage	280,097 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Flat Top Sleeper
Sleeper Size	58"
Suspension	Low Air
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	259222
MLS Number	13568455
Category	Sleeper Semi Trucks
Last Updated	1/15/2026
Location	Millstone Township, NJ, US
Sold By	Hunter Truck

(724) 648-___ SHOW
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2021 Peterbilt 579 Sleeper Semi Truck - 44" Flat Top Sleeper, Cummins 450HP, 12 Speed Endurant Amt

$54,900 USD

Low mileage, small flat top 579 with Cummins. Has small sleeper when needed. Lease maintaned. Ready to go,

Condition	Used
Usage	10,367 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Flat Top Sleeper
Sleeper Size	44"
Suspension	Low Air
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.93 ratio
Stock Number	231290
MLS Number	14088032
Category	Sleeper Semi Trucks
Last Updated	1/17/2026
Location	Butler, PA, US
Sold By	Hunter Truck

(844) 831-___ SHOW
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2022 International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed

$58,950 USD

Inspection Report

Condition	Used
Usage	236,168 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Hi Rise Sleeper
Sleeper Size	56"
Suspension	Air Ride
Rear End	20,000 lb 2.79 ratio
Stock Number	504256
MLS Number	13791303
Category	Sleeper Semi Trucks
Last Updated	1/16/2026
Location	Indianapolis, IN, US
Sold By	International Motors, LLC

2020 International LT625 Sleeper Semi Truck - 56" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

$30,000 USD

Used 2020 International LT625 Sleeper Semi Truck for sale, 636,175 miles, 56" integral sleeper, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, tandem rear axle...

Condition	Used
Usage	636,176 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	56"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	362749
MLS Number	14014223
Category	Sleeper Semi Trucks
Last Updated	1/28/2026
Location	Milwaukee, WI, US
Sold By	Penske Used Trucks

2020 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

$36,250 USD

Used 2020 International LT625 Sleeper Semi Truck for sale, 573,031 miles, Cummins X15 Diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle...

Condition	Used
Usage	573,031 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	354290
MLS Number	14087747
Category	Sleeper Semi Trucks
Last Updated	1/29/2026
Location	Garden City, GA, US
Sold By	Penske Used Trucks

(888) 853-___ SHOW
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2022 Kenworth T680 Day Cab Truck - Cummins 500HP, 12 Speed Endurant Amt

$54,900 USD

X15 Cummins 500 hp, Endurant 12 speed automatic transmission, 3.21 rear end ratio, stationary 5th wheel, disc brakes, LoPro 22.5 tires on all aluminum wheels, stainless visor, fender mirrors...

Condition	Used
Usage	510,207 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	500 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	3.21 ratio
Stock Number	1256
MLS Number	13999948
Category	Day Cab Semi Trucks
Last Updated	1/22/2026
Location	New Salem, ND, US
Sold By	Pedigree Truck and Trailer Sales, Inc.

2021 International LT625 Day Cab Truck - Cummins 450HP, 12 Speed Automatic

$30,750 USD

Used 2021 International LT625 Day Cab Truck for sale, 489,732 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, air ride suspension, 12,350 lbs front axle,...

Condition	Used
Usage	489,732 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear End	40,000 lb 2.79 ratio
Stock Number	20516
MLS Number	13078132
Category	Day Cab Semi Trucks
Last Updated	1/25/2026
Location	Rochester, NY, US
Sold By	Penske Used Trucks

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

Price Drop $38,750 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 663,951 miles, Cummins X15 diesel engine with 450 HP, 12-speed Eaton automatic transmission, 73" integral sleeper, 13200 lbs front...

Condition	Used
Usage	663,951 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPS235764
MLS Number	14086488
Category	Sleeper Semi Trucks
Last Updated	1/25/2026
Location	Bensalem, PA, US
Sold By	Penske Used Trucks

2023 International LT625 Day Cab Truck - Cummins 450HP, 12 Speed Automatic

$86,250 USD

Used 2023 International LT625 Day Cab Truck for sale, 71,813 miles, 450 HP Cummins X15 diesel engine, 12-speed Eaton automatic transmission, tandem rear axle, air ride suspension, 160-gallon...

Condition	Used
Usage	71,813 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	187953
MLS Number	14086482
Category	Day Cab Semi Trucks
Last Updated	1/25/2026
Location	Cookeville, TN, US
Sold By	Penske Used Trucks

2022 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

$58,000 USD

Used 2022 International LT625 Sleeper Semi Truck for sale, 345,390 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	345,390 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	387508
MLS Number	13868257
Category	Sleeper Semi Trucks
Last Updated	1/25/2026
Location	Cranbury, NJ, US
Sold By	Penske Used Trucks

(844) 307-___ SHOW
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2021 International LT625 Day Cab Truck - Cummins 400HP, 12 Speed

$45,900 USD

virgin Rubber, PM, DOT, Available Warranty.

Inspection Report

Condition	Used
Usage	242,311 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Suspension	Air Ride
Rear End	20,000 lb 2.79 ratio
Stock Number	504956
MLS Number	14085834
Category	Day Cab Semi Trucks
Last Updated	1/13/2026
Location	Tampa, FL, US
Sold By	International Motors, LLC

(844) 307-___ SHOW
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2021 International LT625 Day Cab Truck - Cummins 400HP, 12 Speed

$38,900 USD

Virgin Rubber, PM, DOT, Available Warranty.

Inspection Report

Condition	Used
Usage	320,077 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Suspension	Air Ride
Rear End	20,000 lb 2.79 ratio
Stock Number	505088
MLS Number	14085832
Category	Day Cab Semi Trucks
Last Updated	1/15/2026
Location	La Vergne, TN, US
Sold By	International Motors, LLC

2020 International LT625 Day Cab Truck - Cummins 430HP, 12 Speed Automatic

$29,750 USD

Used 2020 International LT625 Day Cab Truck for sale, 553,891 miles, Cummins X15 diesel engine with 430 HP, 12-speed Eaton automatic transmission, tandem rear axle, air ride suspension,...

Condition	Used
Usage	553,891 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	430 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	367920
MLS Number	13775362
Category	Day Cab Semi Trucks
Last Updated	1/29/2026
Location	Perrysburg, OH, US
Sold By	Penske Used Trucks

(855) 591-___ SHOW
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2024 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

$92,900 USD

2024 Kenworth T680 Next Gen – 1 Owner, Fleet Maintained Next Gen Kenworth!, This is one CLEAN truck—came all the way from Tennessee! , 450 HP Cummins X15 engine, , 12-speed Eaton Endurant...

Condition	Used
Usage	5,137 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Stock Number	369197
MLS Number	14020292
Category	Sleeper Semi Trucks
Last Updated	1/13/2026
Location	Byron Center, MI, US
Sold By	5 Star Truck Sales, Inc

2020 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

$38,750 USD

Used 2020 International LT625 Sleeper Semi Truck with 73" integral sleeper, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, tandem rear axle, air ride suspension. See...

Condition	Used
Usage	491,963 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	292413
MLS Number	12613888
Category	Sleeper Semi Trucks
Last Updated	1/28/2026
Location	Spokane Valley, WA, US
Sold By	Penske Used Trucks

(844) 956-___ SHOW
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2020 International LT Sleeper Semi Truck - Raised Roof Sleeper, Cummins 400HP, 12 Speed Amt

$45,000 USD

TRUCK HAS BALANCE OF NTP ULTRA 2 WARRANTY, ENGINE, CRITICAL COMPONENTS, AFTER-TREATMENT, TRANSMISSION REAR ENDS, WARRANTY EXPIRES 11-26-2028 OR 795,109 MILES,

Condition	Used
Usage	411,827 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	C5346
MLS Number	13849177
Category	Sleeper Semi Trucks
Last Updated	1/21/2026
Location	West Sacramento, CA, US
Sold By	DeWald Equipment

(833) 801-___ SHOW
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2021 International LT Day Cab Truck - Cummins 400HP, 12 Speed Endurant Amt

$27,000 USD

NICE TRUCK, RUNS EXCELLENT, FLEET MAINTAINED, AUTOMATED TRANSMISSION, AIR SEAT, SMART WHEEL, POWER WINDOWS, POWER MIRRORS, HEATED MIRRORS, DIFFERENTIAL LOCK, DUMP VALVE, SLIDING 5TH!

Condition	Used
Usage	8,277 Hours
Duty Class	Heavy Duty Day Cab Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	21X15413LTDC
MLS Number	14083848
Category	Day Cab Semi Trucks
Last Updated	1/13/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

2023 International LT625 Sleeper Semi Truck - 73" Integral Sleeper, Cummins 450HP, 12 Speed Automatic

$44,000 USD

Used 2023 International LT625 Sleeper Semi Truck for sale, 617,081 miles, Cummins X15 450HP diesel engine, 12-speed Eaton automatic transmission, 73" integral sleeper, tandem rear axle, air...

Condition	Used
Usage	617,081 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Transmission	12 Speed Automatic
Sleeper Type	Integral Sleeper
Sleeper Size	73"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	UPP235995
MLS Number	14033442
Category	Sleeper Semi Trucks
Last Updated	1/28/2026
Location	Piqua, OH, US
Sold By	Penske Used Trucks

(833) 801-___ SHOW
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2021 International LT Day Cab Truck - Cummins 400HP, 12 Speed Amt

$26,000 USD

NICE TRUCK, RUNS EXCELLENT, FLEET MAINTAINED, AUTOMATED TRANSMISSION, AIR SEAT, SMART WHEEL, POWER WINDOWS, POWER MIRRORS, HEATED MIRRORS, DIFFERENTIAL LOCK, DUMP VALVE, SLIDING 5TH!,

Condition	Used
Usage	441,285 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	400 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	21X15441LTDC
MLS Number	14082576
Category	Day Cab Semi Trucks
Last Updated	1/11/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales