12 Speed 6x4 Trucks with Cummins Engines For Sale

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1-25 of 397 results
1-25 of 397 results
Featured Item
Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Automatic
13 0

2020 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Automatic

$49,900 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...
ConditionUsed
Usage526,094 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power500 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automatic
Sleeper TypeRaised Roof Sleeper
Sleeper Size76"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb
Stock Number192
MLS Number12902768
CategorySleeper Semi Trucks
Last Updated7/17/2024
Location
Belvidere, IL, US
Sold By

First Class 8 Truck Sales

Kenworth T680 Day Cab Truck - Cummins 500HP, 12 Speed Endurant Amt
21 0

2021 Kenworth T680 Day Cab Truck - Cummins 500HP, 12 Speed Endurant Amt

Newly Listed
$69,900 USD
Qualifies for Fed Ex Service.Certified!! Certified!! KWS Certified Pre-Owned / 114-point Inspection / 1 year or 125,000 miles warranty included. Call for Details
ConditionUsed
Usage450,130 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power500 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
SuspensionAG 400L
Rear AxleTandem Axle
Rear End40,000 lb
Stock NumberMJ448044U
MLS Number13035532
CategoryDay Cab Semi Trucks
Last Updated8/7/2024
Location
Hagerstown, MD, US
Sold By

Truck Enterprises Inc.

Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Amt
3 0

2023 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 500HP, 12 Speed Endurant Amt

Newly Listed
$186,000 USD
Endurant Automated Transmission behind the 500 HP Cummins in this T680 Sleeper. Gorgeous Unit that will grow your business!,
ConditionNew
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power500 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size76"
SuspensionAG 400L
Rear AxleTandem Axle
Rear End40,000 lb 3.08 ratio
MLS Number13034971
CategorySleeper Semi Trucks
Last Updated8/7/2024
Location
Chesapeake, VA, US
Sold By

Truck Enterprises Inc.

International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed
6 0

2020 International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed

Newly Listed
$49,000 USD
Inspection Report
ConditionUsed
Usage319,105 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeHi Rise Sleeper
Sleeper Size56"
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number498863
MLS Number13034785
CategorySleeper Semi Trucks
Last Updated8/7/2024
Location
Tampa, FL, US
Sold By

International Used Truck Centers

International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, Cummins 450HP, 12 Speed
4 0

2021 International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, Cummins 450HP, 12 Speed

Recently Updated
$56,000 USD
Inspection Report
ConditionUsed
Usage424,913 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeHi Rise Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End20,000 lb 2.64 ratio
Stock Number498442
MLS Number12981690
CategorySleeper Semi Trucks
Last Updated8/7/2024
Location
West Sacramento, CA, US
Sold By

International Used Truck Centers

Freightliner Cascadia 125 Day Cab Truck - Cummins 450HP, 12 Speed Ultrashift Automatic
41 3

2016 Freightliner Cascadia 125 Day Cab Truck - Cummins 450HP, 12 Speed Ultrashift Automatic

Recently Updated
$35,500 USD
2016 FREIGHTLINER CASCADIA DAYCAB. CUMMINS ISX 15 WITH 450 HP, EATON FULLER ULTRASHIFT AUTO TRANS, ONLY 366000 MILES, CLEAN INTERIOR WITH COLD AC. WE SHIP ANYWHERE !,
ConditionUsed
Usage12,448 Hours
Duty ClassHeavy Duty Day Cab Truck
Horse Power450 HP
Engine ModelCummins ISX15
Drivetrain6x4
Transmission12 Speed Ultrashift Automatic
SuspensionAirLiner
Rear AxleTandem Axle
Rear End40,000 lb 3.55 ratio
MLS Number12627280
CategoryDay Cab Semi Trucks
Last Updated8/7/2024
Location
Jackson, TN, US
Sold By

Snider Equipment

Kenworth T680 Sleeper Semi Truck - Cummins 450HP, 12 Speed Automatic
24 1

2019 Kenworth T680 Sleeper Semi Truck - Cummins 450HP, 12 Speed Automatic

Recently Updated
$46,900 USD
Fleet Maintained, Stock 253906, 485,020 Miles, Cummins X15, 450 HP, Eaton-Fuller Automatic, Collision Mitigation, CD Player, Single Bunk, Jakes, Tilt/Tele, Dual air ride seats, 2.64 Ratio,...
ConditionUsed
Usage485,020 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins ISX
Drivetrain6x4
Transmission12 Speed Automatic
Sleeper Size76"
Rear AxleTandem Axle
Stock Number253906
MLS Number12200760
CategorySleeper Semi Trucks
Last Updated8/7/2024
Location
Monroe, GA, US
Sold By

AAA Trucks LLC

Kenworth T680 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 400HP, 12 Speed Amt
94 0

2022 Kenworth T680 Sleeper Semi Truck - 80" Raised Roof Sleeper, Cummins 400HP, 12 Speed Amt

Recently Updated
$100,000 USD
250240 Miles, 5687 Hours, Engine: CUMMINS X15, 500 HP, Fuel Type: Diesel, 12 Speed AMT Transmission, Drive: 6x4, Overdrive, Air Ride Suspension, Sleeper Type: Raised Roof Sleeper, Sleeper...
ConditionUsed
Usage5,687 Hours
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power500 HP
Engine ModelCummins X15
Emission RatingUSA Tier 4 Final
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size80"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb 2.79 ratio
Stock Number136892
MLS Number12129352
CategorySleeper Semi Trucks
Last Updated8/7/2024
Location
Beverly, WV, US
Sold By

TFS Recovery, Inc.

2021 Peterbilt 579 Sleeper Semi Truck
13 0

2021 Peterbilt 579 Sleeper Semi Truck

Newly Listed
$64,977 USD
For Sale: 2021 Peterbilt 579 Ultraloft Stock 1152615 Specifications:, Model: 2021 Peterbilt 579 Ultraloft, Sleeper: 80" spacious sleeper, Engine: Cummins X15 Miles: 456,595, Transmission...
ConditionUsed
Usage456,640 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Endurant Automated
Sleeper TypeUltraLoft
Sleeper Size80"
SuspensionAir Ride
Stock Number1152615
MLS Number13031270
CategorySleeper Semi Trucks
Last Updated8/6/2024
Location
Atlanta, GA, US
Sold By

Rush Truck Centers Atlanta

International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed
2 0

2020 International LT625 Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 400HP, 12 Speed

Newly Listed
$50,000 USD
Available warranty, PM, DOT, Fleet maintained.
Inspection Report
ConditionUsed
Usage475,067 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeRaised Roof Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End40,000 lb 2.85 ratio
Stock Number499562
MLS Number13031906
CategorySleeper Semi Trucks
Last Updated8/6/2024
Location
La Vergne, TN, US
Sold By

International Used Truck Centers

International LT625 Day Cab Truck - Cummins 400HP, 12 Speed
7 0

2020 International LT625 Day Cab Truck - Cummins 400HP, 12 Speed

Newly Listed
$49,000 USD
1 2-YR Factory-Backed Engine Aftertreatment Warranty + Extended Vehicle Coverage Towing AVAILABLE. $0 Deductible.
Inspection Report
ConditionUsed
Usage489,541 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
SuspensionAir Ride
Rear End40,000 lb 2.85 ratio
Stock Number499523
MLS Number13031905
CategoryDay Cab Semi Trucks
Last Updated8/6/2024
Location
Philadelphia, PA, US
Sold By

International Used Truck Centers

International LT625 Day Cab Truck - Cummins 400HP, 12 Speed
1 0

2019 International LT625 Day Cab Truck - Cummins 400HP, 12 Speed

Newly Listed
$44,988 USD
60-Day Truck Protect Promise with qualifying Retail Purchase. 1 2-Year Factory-Backed Engine Aftertreatment Warranty AVAILABLE. $0 Deductible. No Claim Maximum. Backed by Dealer Network of...
Inspection Report
ConditionUsed
Usage384,403 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number499261
MLS Number13031904
CategoryDay Cab Semi Trucks
Last Updated8/6/2024
Location
Joliet, IL, US
Sold By

International Used Truck Centers

International LT625 Day Cab Truck - Cummins 400HP, 12 Speed
7 0

2019 International LT625 Day Cab Truck - Cummins 400HP, 12 Speed

Newly Listed
$49,000 USD
1 2-YR Factory-Backed Engine Aftertreatment Warranty + Extended Vehicle Coverage Towing AVAILABLE. $0 Deductible.
Inspection Report
ConditionUsed
Usage373,458 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number499427
MLS Number13031903
CategoryDay Cab Semi Trucks
Last Updated8/6/2024
Location
Philadelphia, PA, US
Sold By

International Used Truck Centers

International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, Cummins 450HP, 12 Speed
32 0

2019 International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, Cummins 450HP, 12 Speed

Newly Listed
$29,988 USD
60-Day Truck Protect Promise with qualifying Retail Purchase. 1 2-Year Factory-Backed Engine Aftertreatment Warranty AVAILABLE. $0 Deductible. No Claim Maximum. Backed by Dealer Network of...
Inspection Report
ConditionUsed
Usage516,920 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeHi Rise Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End40,000 lb 2.64 ratio
Stock Number498425
MLS Number13031897
CategorySleeper Semi Trucks
Last Updated8/6/2024
Location
Joliet, IL, US
Sold By

International Used Truck Centers

International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, Cummins 450HP, 12 Speed
4 0

2020 International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, Cummins 450HP, 12 Speed

Newly Listed
$53,500 USD
Inspection Report
ConditionUsed
Usage334,576 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeHi Rise Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End40,000 lb 2.64 ratio
Stock Number499081
MLS Number13031895
CategorySleeper Semi Trucks
Last Updated8/6/2024
Location
Indianapolis, IN, US
Sold By

International Used Truck Centers

International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed
1 0

2020 International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed

Newly Listed
$43,000 USD
60-Day Truck Protect Promise with qualifying Retail Purchase. 1 2-Year Factory-Backed Engine Aftertreatment Warranty AVAILABLE. $0 Deductible. No Claim Maximum. Backed by Dealer Network of...
Inspection Report
ConditionUsed
Usage416,851 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeHi Rise Sleeper
Sleeper Size56"
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number498193
MLS Number13031892
CategorySleeper Semi Trucks
Last Updated8/6/2024
Location
Joliet, IL, US
Sold By

International Used Truck Centers

International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, Cummins 450HP, 12 Speed
1 0

2020 International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, Cummins 450HP, 12 Speed

Newly Listed
$46,000 USD
60-Day Truck Protect Promise with qualifying Retail Purchase. 1 2-Year Factory-Backed Engine Aftertreatment Warranty AVAILABLE. $0 Deductible. No Claim Maximum. Backed by Dealer Network of...
Inspection Report
ConditionUsed
Usage455,106 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeHi Rise Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End40,000 lb 2.64 ratio
Stock Number496974
MLS Number13031885
CategorySleeper Semi Trucks
Last Updated8/6/2024
Location
Joliet, IL, US
Sold By

International Used Truck Centers

International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, Cummins 450HP, 12 Speed
1 0

2019 International LT625 Sleeper Semi Truck - 73" Hi Rise Sleeper, Cummins 450HP, 12 Speed

Newly Listed
$36,988 USD
1 or 2-Year Factory-Backed Engine Aftertreatment Warranty AVAILABLE. $0 Deductible. No Claim Maximum. Backed by Dealer Network of 700+ Locations.
Inspection Report
ConditionUsed
Usage420,448 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeHi Rise Sleeper
Sleeper Size73"
SuspensionAir Ride
Rear End40,000 lb 2.64 ratio
Stock Number491242
MLS Number13031837
CategorySleeper Semi Trucks
Last Updated8/6/2024
Location
Joliet, IL, US
Sold By

International Used Truck Centers

International LT625 Day Cab Truck - Cummins 400HP, 12 Speed
1 0

2020 International LT625 Day Cab Truck - Cummins 400HP, 12 Speed

Newly Listed
$57,500 USD
60-Day Truck Protect Promise with qualifying Retail Purchase. 1 2-Year Factory-Backed Engine Aftertreatment Warranty AVAILABLE. $0 Deductible. No Claim Maximum. Backed by Dealer Network of...
Inspection Report
ConditionUsed
Usage345,986 Miles
Duty ClassHeavy Duty Day Cab Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number498086
MLS Number13031816
CategoryDay Cab Semi Trucks
Last Updated8/6/2024
Location
Joliet, IL, US
Sold By

International Used Truck Centers

International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed
1 0

2019 International LT625 Sleeper Semi Truck - 56" Hi Rise Sleeper, Cummins 400HP, 12 Speed

Newly Listed
$39,000 USD
60-Day Truck Protect Promise with qualifying Retail Purchase. 1 2-Year Factory-Backed Engine Aftertreatment Warranty AVAILABLE. $0 Deductible. No Claim Maximum. Backed by Dealer Network of...
Inspection Report
ConditionUsed
Usage374,093 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automated
Sleeper TypeHi Rise Sleeper
Sleeper Size56"
SuspensionAir Ride
Rear End40,000 lb 2.79 ratio
Stock Number496639
MLS Number13031813
CategorySleeper Semi Trucks
Last Updated8/6/2024
Location
Joliet, IL, US
Sold By

International Used Truck Centers

International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 450HP
17 0

2025 International LT Sleeper Semi Truck - 73" Raised Roof Sleeper, Cummins 450HP

Recently Updated
$159,900 USD
2378 Miles, Engine: CUMMINS, 450 HP, Fuel Type: Diesel, Drive: 6x4, Sleeper Type: Raised Roof Sleeper, Sleeper Size: 73, Wheel Base: 228, Tandem Rear Axles, Front Axle Weight: 12350 lb, Rear...
ConditionNew
Usage2,378 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Drivetrain6x4
Transmission12 Speed
Sleeper TypeRaised Roof Sleeper
Sleeper Size73"
Rear AxleTandem Axle
Rear End40,000 lb 2.79 ratio
Stock Number335577
MLS Number12962639
CategorySleeper Semi Trucks
Last Updated8/7/2024
Location
Colchester, VT, US
Sold By

Allegiance Trucks

International ProStar Day Cab Truck - Cummins 451HP, 12 Speed Autoshift Amt
38 0

2017 International ProStar Day Cab Truck - Cummins 451HP, 12 Speed Autoshift Amt

Newly Listed
$27,900 USD
413558 Miles, 13282 Hours, Engine: CUMMINS ISX15, 451 HP, 12 Speed Autoshift AMT Transmission, Drive: 6x4, Air Ride Suspension, Tires: 295/75R22.5, Wheels: Aluminum Outside, Wheel Base: 185,...
ConditionUsed
Usage13,282 Hours
Duty ClassHeavy Duty Day Cab Truck
Horse Power451 HP
Engine ModelCummins ISX15
Drivetrain6x4
Transmission12 Speed Autoshift Automated
SuspensionAir Ride
Rear AxleTandem Axle
Rear End40,000 lb
MLS Number13027826
CategoryDay Cab Semi Trucks
Last Updated8/6/2024
Location
WINGER, MN, US
Sold By

Lucken Trucks and Parts

Kenworth T680 Sleeper Semi Truck - Cummins 400HP, 12 Speed Automatic
23 0

2019 Kenworth T680 Sleeper Semi Truck - Cummins 400HP, 12 Speed Automatic

Newly Listed
$45,900 USD
$6,620.00 Total Due - 30 DAYS NO PAYMENT - EASY APPROVAL! FreedomWay Trucks offers a program that bypasses traditional requirements to truck ownership with NO CREDIT CHECK. We call it the...
ConditionUsed
Usage539,840 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins ISX
Drivetrain6x4
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Stock Number5556
MLS Number13027596
CategorySleeper Semi Trucks
Last Updated8/3/2024
Location
Gulfport, MS, US
Sold By

FreedomWay Trucks

International LT Sleeper Semi Truck - Cummins 450HP, 12 Speed Automatic
24 0

2018 International LT Sleeper Semi Truck - Cummins 450HP, 12 Speed Automatic

Newly Listed
$38,000 USD
$5,610.00 Total Due - 30 DAYS NO PAYMENT - EASY APPROVAL! FreedomWay Trucks offers a program that bypasses traditional requirements to truck ownership with NO CREDIT CHECK. We call it the...
ConditionUsed
Usage496,541 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power450 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automatic
Sleeper Size60"
SuspensionAir Ride
Rear AxleTandem Axle
Rear End2.64 ratio
Stock Number5525
MLS Number13027591
CategorySleeper Semi Trucks
Last Updated8/3/2024
Location
Gulfport, MS, US
Sold By

FreedomWay Trucks

Kenworth T680 Sleeper Semi Truck - Cummins 400HP, 12 Speed Automatic
5 0

2019 Kenworth T680 Sleeper Semi Truck - Cummins 400HP, 12 Speed Automatic

Newly Listed
$45,500 USD
$6,240.00 Total Due - 30 DAYS NO PAYMENT - EASY APPROVAL! FreedomWay Trucks offers a program that bypasses traditional requirements to truck ownership with NO CREDIT CHECK. We call it the...
ConditionUsed
Usage560,133 Miles
Duty ClassHeavy Duty Sleeper Semi Truck
Horse Power400 HP
Engine ModelCummins X15
Drivetrain6x4
Transmission12 Speed Automatic
SuspensionAir Ride
Rear AxleTandem Axle
Stock Number5626
MLS Number13027582
CategorySleeper Semi Trucks
Last Updated8/3/2024
Location
Gulfport, MS, US
Sold By

FreedomWay Trucks

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