Kenworth 12 Speed 6x4 Trucks For Sale

(833) 801-___ SHOW
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2019 Kenworth T680 Day Cab Truck - Paccar 455HP, 12 Speed Amt

$20,000 USD

good truck, fleet maintained, runs great, good tires, air seat, tilt/tele, power windows, power mirrors, heated mirrors, tilt/tele, power door locks,,

Condition	Used
Usage	583,040 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	19MX583T680DC
MLS Number	11811647
Category	Day Cab Semi Trucks
Last Updated	1/7/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(833) 801-___ SHOW
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2019 Kenworth T680 Day Cab Truck - Paccar 455HP, 12 Speed Amt

$20,000 USD

good truck, fleet maintained, runs great, good tires, air seat, tilt/tele, power windows, power mirrors, heated mirrors, tilt/tele, power door locks,,

Condition	Used
Usage	594,245 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.64 ratio
Stock Number	19MX594T680DC
MLS Number	11782180
Category	Day Cab Semi Trucks
Last Updated	1/7/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(239) 451-___ SHOW
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2025 Kenworth T880 Day Cab Truck - Cummins 450HP, 12 Speed Endurant Amt

$154,995 USD

Transfer this unit to your nearest South Florida location at no additional cost! Fort Lauderdale, Fort Pierce, Riviera Beach, or Naples. Contact us for details! Model Year: 2024, Model: T880...

Condition	New
Usage	9 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Suspension	AG 380
Rear Axle	Tandem Axle
Rear End	38,000 lb 2.93 ratio
Stock Number	KF173870
MLS Number	13486655
Category	Day Cab Semi Trucks
Last Updated	1/8/2026
Location	Naples, FL, US
Sold By	All Roads Trucks

(239) 451-___ SHOW
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2025 Kenworth T880 Day Cab Truck - Cummins 450HP, 12 Speed Endurant Amt

$154,995 USD

Transfer this unit to your nearest South Florida location at no additional cost! Fort Lauderdale, Fort Pierce, Riviera Beach, or Naples. Contact us for details! Model Year: 2024, Model: T880...

Condition	New
Usage	1,172 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Suspension	AG 380
Rear Axle	Tandem Axle
Rear End	38,000 lb 2.93 ratio
Stock Number	KF173869
MLS Number	13486652
Category	Day Cab Semi Trucks
Last Updated	1/8/2026
Location	Naples, FL, US
Sold By	All Roads Trucks

(833) 478-___ SHOW
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2020 Kenworth T680 Sleeper Semi Truck - 70" Mid Roof Sleeper, Cummins 450HP, 12 Speed Endurant Automatic

$55,495 USD

2020 Kenworth T680 – Teal, Automatic, and Super Clean Just in! This 2020 Kenworth T680 is a great starter truck or fleet addition — powered by a Cummins ISX 450HP paired with a 12-speed...

Condition	Used
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins ISX450
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Mid Roof Sleeper
Sleeper Size	70"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	14927C
MLS Number	13852473
Category	Sleeper Semi Trucks
Last Updated	1/15/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

(855) 370-___ SHOW
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2020 Kenworth T100 Day Cab Truck - Cummins 450HP, 12 Speed Automatic

$39,900 USD

2020 Kenworth T680 Tandem Axle Day Cab, Cummins X15 450 HP Engine, Automatic 12 Spd Transmission, Air Ride Suspension, 52,350 GVW, 12,350# Front Axle, 40,000# Rear Axle, 2.79 Ratio, 177"...

Condition	Used
Usage	11,947 Hours
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	20KN058
MLS Number	13995892
Category	Day Cab Semi Trucks
Last Updated	12/4/2025
Location	London, OH, US
Sold By	Vander Haag's Inc.

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$42,000 USD

Se habla español, 540k Miles, Many Available!, X15 – 450HP, 12 Speed Eaton Auto, Double bunk Condo, Aluminum wheels, Battery APU, Nice Rubber, Air Slide 5th Wheel, ParkSmart APU, Workstation...

Condition	Used
Usage	540,870 Miles
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
Rear End	40,000 lb 2.79 ratio
Stock Number	399372
MLS Number	13601260
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$42,000 USD

X15 – 450HP, 12 Speed automatic, Double bunk, Aluminum wheels, Battery APU, *Rep Photos - will update with actual photos soon**,

Condition	Used
Usage	549,500 Miles
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
Rear End	40,000 lb 2.79 ratio
Stock Number	399381
MLS Number	13586523
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$44,500 USD

530,201 Miles, X15 – 450HP, 12 Speed Endurant Automatic, Double bunk, Aluminum wheels, Collision Mitigation System, Battery APU, Jakes, 2.79 Ratio, Disc Brakes, Aluminum Wheels, Air Slide...

Condition	Used
Usage	530,201 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Raised Roof Sleeper
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	399376
MLS Number	13586522
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$47,000 USD

430,655 Miles, Cummins X15 100th Anniversary Edition, 450HP, 12 Speed Eaton Automatic, Double Bunk, Aluminum wheels, Battery APU, Collision Mitigation System, Inverter, Air Slide 5th Wheel,...

Condition	Used
Usage	430,655 Miles
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
Sleeper Size	76"
Suspension	Paccar
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	399405
MLS Number	13586519
Category	Sleeper Semi Trucks
Last Updated	12/29/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$50,500 USD

395,982 Miles, Cummins X15 – 450HP, 12 Speed Endurant Automatic, Double bunk, Aluminum wheels, Battery APU, 40k Rears, 13,200 Fronts, 2.79 Ratio, Collision Mitigation System, Bluetooth /...

Condition	Used
Usage	395,982 Miles
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
Rear End	40,000 lb 2.79 ratio
Stock Number	399404
MLS Number	13586518
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$49,000 USD

*Rep Photos of Exterior - will update with actual photos soon**, 416,806 Miles, Cummins X15 – 450HP, 12 Speed Eaton Automatic, Double Bunk, Aluminum wheels, Battery APU, Collision Mitigation...

Condition	Used
Usage	416,806 Miles
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
Rear End	40,000 lb 2.71 ratio
Stock Number	399403
MLS Number	13586516
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$47,000 USD

457,401 Miles, Cummins X15 – 450HP, 12 Speed automatic, Double bunk, Aluminum wheels, Battery APU, Workstation, Inter-Axle Lock, Air Suspension Dump, Fleet Maintained, Air Slide 5th Wheel,...

Condition	Used
Usage	456,000 Miles
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
Rear End	40,000 lb 2.79 ratio
Stock Number	399401
MLS Number	13586514
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$48,000 USD

432,160 Miles, Cummins X15 – 450HP, 12 Speed Automatic, Double Bunk Sleeper, Aluminum wheels, Parksmart APU, Collision Mitigation System, Inverter, 2.79 Ratio, Fleet Maintained, Great...

Condition	Used
Usage	432,160 Miles
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
Rear End	40,000 lb 2.79 ratio
Stock Number	399398
MLS Number	13586513
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$41,500 USD

553,229 Miles, X15 – 450HP, 450 HP, Eaton Endurant Auto, Double Bunk Sleeper, Aluminum wheels, Battery APU - Not Verified It Works, Air Slide 5th Wheel, 2.71 Ratio, Air Ride, Collision...

Condition	Used
Usage	553,229 Miles
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
Rear End	40,000 lb 2.71 ratio
Stock Number	399393
MLS Number	13586511
Category	Sleeper Semi Trucks
Last Updated	12/2/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2020 Kenworth T680 Sleeper Semi Truck - Raised Roof Sleeper, Cummins 450HP, 12 Speed Automatic

$47,000 USD

449,597 Miles, Cummins X15 – 100th Anniversary Edition, 450 HP, Fully Automatic, Park Smart APU, Collision Mitigation System, Workstation, Double Bunk Condo, Nice Rubber, Fleet Maintained,...

Condition	Used
Usage	449,597 Miles
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
Rear End	40,000 lb 2.79 ratio
Stock Number	399391
MLS Number	13586509
Category	Sleeper Semi Trucks
Last Updated	12/6/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(833) 490-___ SHOW
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2023 Kenworth T680 Sleeper Semi Truck - Factory Warranty Remaining, X15 Cummins, 450hp, Carrier APU,

$68,500 USD

For Sale: 2023 Kenworth T680 - 402,698 Miles, This meticulously maintained 2023 Kenworth T680 is road-ready, DOT passing, and packed with premium features for ultimate performance and...

Warranty

Condition	Used
Usage	402,698 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins ISX / X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	76"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	U235367
MLS Number	13763259
Category	Sleeper Semi Trucks
Last Updated	11/25/2025
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

(833) 490-___ SHOW
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Tri State Truck Center - Springfield, MO

2023 Kenworth T680 Sleeper Semi Truck - Factory Warranty Remaining, X15 Cummins, 450hp, Carrier APU,

$68,500 USD

For Sale: 2023 Kenworth T680 - 400,518 Miles, This meticulously maintained 2023 Kenworth T680 is road-ready, DOT passing, and packed with premium features for ultimate performance and...

Warranty

Condition	Used
Usage	400,518 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins ISX / X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	76"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	U235365
MLS Number	13763257
Category	Sleeper Semi Trucks
Last Updated	11/25/2025
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

2019 Kenworth T680 Sleeper Semi Truck - 76" Raised Roof Sleeper, Cummins 450HP, 12 Speed Endurant Amt

$37,900 USD

76 Inch High-Roof Sleeper, Upper Bunk, 575,000 Approximate Miles, ECM Reads 575,000 Miles, Cummins X15 Engine, 450 H.P., Engine Brake, Eaton Fuller Endurant 12 Speed Transmission,...

Condition	Used
Usage	575,000 Miles
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
Sleeper Size	76"
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.79 ratio
Stock Number	242445
MLS Number	13712697
Category	Sleeper Semi Trucks
Last Updated	11/20/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

2019 Kenworth T680 Sleeper Semi Truck

$38,900 USD

456k Miles, Paccar MX-13, 455 HP, Endurant Auto, 2.85 Ratio, 216" WB, 12k Fronts, 40k Rears, Air Ride, Diff Lock, Single Bunk Sleeper, Fleet Maintained Unit, Collision Mitigation System,...

Condition	Used
Usage	456,028 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	455 HP
Engine Model	Paccar MX-13
Drivetrain	6x4
Transmission	12 Speed Endurant Automated
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 2.85 ratio
Stock Number	238363
MLS Number	13333955
Category	Sleeper Semi Trucks
Last Updated	11/27/2025
Location	Monroe, GA, US
Sold By	AAA Trucks LLC

(855) 370-___ SHOW
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2019 Kenworth T680 Day Cab Truck - Cummins 450HP, 12 Speed Automatic

$49,900 USD

2019 Kenworth T680, Cummins ISX15 450HP Engine, Automatic 12 Spd Eaton EEO-17F112C Transmission, Air Ride Suspension, 52,000 GVW, 12,000# mon03690292 Front Axle, 40,000 Rear Axle, 3.08 Ratio...

Condition	Used
Usage	467,532 Miles
Duty Class	Heavy Duty Day Cab Truck
Horse Power	450 HP
Engine Model	Cummins ISX15
Drivetrain	6x4
Transmission	12 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 3.08 ratio
Stock Number	19KN058
MLS Number	13769722
Category	Day Cab Semi Trucks
Last Updated	11/15/2025
Location	London, OH, US
Sold By	Vander Haag's Inc.

(855) 906-___ SHOW
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2021 Kenworth T680 4800 Gallon Gasoline / Fuel Truck - Paccar 400HP, 12 Speed Amt

Contact for price

2020 KENWORTH T680 3-AXLE, MX11 (400 HP), Engine Brake, Paccar PO-16F112 Automatic Transmission, Meritor MP40-14X3 38,000# Dual Drive Rear Axles (3.55 Ratio), Inter-Axle Differential, Paccar...

Condition	Used
Usage	8,867 Hours
Duty Class	Heavy Duty Gasoline / Fuel Truck
Horse Power	400 HP
Engine Model	Paccar MX-11
Drivetrain	6x4
Transmission	12 Speed Automated
Suspension	Flex Air
Rear Axle	Tandem Axle
Rear End	38,000 lb 3.55 ratio
Capacity	4800 Gallons
Stock Number	E18500
MLS Number	13910863
Category	Gasoline / Fuel Trucks
Last Updated	10/21/2025
Location	Healdsburg, CA, US
Sold By	Opperman & Son, Inc.

(833) 490-___ SHOW
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2021 Kenworth T680 Sleeper Semi Truck- Cummins X15 , 450hp , Carrier Apu , 90 Day Engine , Aftertreatment, Transmission & Rear Axle Warranty Included

$51,995 USD

For sale: 2021 Kenworth T680 equipped with a powerful Cummins X15 engine delivering 450 horsepower. Features a 76-inch single bunk sleeper, Carrier APU for enhanced comfort and efficiency,...

Warranty

Condition	Used
Usage	539,522 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Cummins X15
Drivetrain	6x4
Transmission	12 Speed Endurant Automatic
Sleeper Type	Condo Sleeper
Sleeper Size	76"
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	2.64 ratio
Stock Number	U425293
MLS Number	13757639
Category	Sleeper Semi Trucks
Last Updated	11/25/2025
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

(855) 725-___ SHOW
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2018 Kenworth T680 Day Cab Truck - Paccar 405HP, 12 Speed Automatic

$78,000 USD

we currently have this beautiful 2018 Kenworth with the low mileage in our inventory this unit is a equipped with a mighty Paccar motor with 405 HP partnered with a automatic transmission...

Condition	Used
Duty Class	Heavy Duty Day Cab Truck
Horse Power	405 HP
Drivetrain	6x4
Transmission	12 Speed Automatic
Rear Axle	Tandem Axle
MLS Number	13825501
Category	Day Cab Semi Trucks
Last Updated	3/14/2026
Location	North Las Vegas, NV, US
Sold By	TCI Transportation