Mack 6 Speed Automatic Trucks For Sale

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2022 Mack MD6 28 ft Box Truck - 235HP, 6 Speed Allison Rds Automatic, Swing Door, Liftgate

2019 Mack Granite 64BR Tri Axle Dump Truck - MP7 425HP, 6 Speed Automatic, 16' Dump

Price Drop $139,900 USD

2019 Mack GR64B --- Tri Axle, MP7 Mack 425 HP, Allison Automatic 6 Speed, 4.19 Ratio, 20,000 Front Axle, 46,000 Rear Axle, 208" Wheelbase, 19' 5" Bridge, Camelback, Thick Frame, 3 Stage...

Condition	Used
Usage	13,655 Hours
Duty Class	Heavy Duty Dump Truck
Upfit Make	Ox Bodies
Bed Length	16 ft.
Horse Power	425 HP
Engine Model	Mack MP7
Drivetrain	8x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Camelback
Rear Axle	Tri Axle
Rear End	46,000 lb 4.19 ratio
Stock Number	001589
MLS Number	12487082
Category	Dump Trucks
Last Updated	1/11/2026
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

(833) 300-___ SHOW
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2020 Mack Granite 64BR MHD Tandem Axle Cab & Chassis Truck - Cummins, 350HP, 6 Speed Allison Rds Automatic

Contact for price

CAB TO END OF FRAME342 ",

Condition	Used
Usage	7,075 Hours
Duty Class	Heavy Duty Cab & Chassis Truck
Horse Power	350 HP
Engine Model	Cummins L9
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Mack
Rear Axle	Tandem Axle
Rear End	40,000 lb 4.63 ratio
Stock Number	C-37167
MLS Number	14075120
Category	Cab & Chassis Trucks
Last Updated	1/7/2026
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center

(855) 942-___ SHOW
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2018 Mack Granite GU533 Tandem Axle Flatbed Truck - 350HP, 6 Speed Automatic

$71,500 USD

Used 2018 Mack Granite GU533 Heavy Duty Flatbed Truck for sale, 166,653 miles, 350 HP Cummins L9 diesel engine, 6-speed Allison automatic transmission, tandem rear axle, air ride suspension....

Condition	Used
Usage	166,653 Miles
Duty Class	Heavy Duty Flatbed Truck
Horse Power	350 HP
Engine Model	Cummins L9
Transmission	6 Speed Automatic
Suspension	Air Ride
Rear Axle	Tandem Axle
Rear End	40,000 lb 4.53 ratio
Stock Number	718407
MLS Number	13779802
Category	Flatbed Trucks
Last Updated	1/14/2026
Location	North Fond Du Lac, WI, US
Sold By	Penske Used Trucks

(833) 720-___ SHOW
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2012 Mack LEU613 Garbage Truck - MP7, 6 Speed Allison Rds Automatic

$49,900 USD

2012 Mack LEU 600 Mack MP7 engine, 4500 6 speed Allison, AM/FM, A/C, dual drive, 88K miles, 9300 hours, Heil Durapack 7000 with Python Arm. Super nice, well maintained southern municipal...

Condition	Used
Usage	88,000 Miles
Duty Class	Heavy Duty Garbage Truck
Engine Model	Mack MP7
Transmission	6 Speed Allison RDS Automatic
Stock Number	T331
MLS Number	13555433
Category	Garbage Trucks
Last Updated	1/3/2026
Location	Nashville, TN, US
Sold By	Capital City Truck Sales LLC

(855) 942-___ SHOW
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2020 Mack Granite GU533 Flatbed Truck - 350HP, 6 Speed Automatic

$81,000 USD

Used 2020 Mack Granite GU533 Flatbed Truck for sale, 134,483 miles, Cummins L9 350HP diesel engine, 6-speed Allison automatic transmission, heavy-duty single rear axle, 90-gallon fuel...

Condition	Used
Usage	134,483 Miles
Duty Class	Heavy Duty Flatbed Truck
Horse Power	350 HP
Engine Model	Cummins L9
Transmission	6 Speed Automatic
Rear Axle	Single Axle
Rear End	40,000 lb
Stock Number	718621
MLS Number	14062765
Category	Flatbed Trucks
Last Updated	1/4/2026
Location	North Fond Du Lac, WI, US
Sold By	Penske Used Trucks

(844) 435-___ SHOW
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2016 Mack Granite 42FR MHD Garbage Truck - 345HP, Automatic

$144,900 USD

2015 Mack GU713 SFA With Heil DuraPack, 7000 ASL Side Loader,

Condition	Used
Usage	140,352 Miles
Duty Class	Heavy Duty Garbage Truck
Horse Power	345 HP
Transmission	6 Speed Automatic
Suspension	Walking Beam
Rear Axle	Tandem Axle
Rear End	40,000 lb
Stock Number	339748
MLS Number	13556816
Category	Garbage Trucks
Last Updated	12/11/2025
Location	Manchester, NH, US
Sold By	Allegiance Trucks

(833) 490-___ SHOW
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2023 Mack Granite Roll Off Truck - Galbreath Roll Off Body, Financing Available , Trades Welcome

$186,995 USD

For sale: 2023 Mack Granite roll-off truck in excellent condition with only 177,000 miles – ready to work today! Powered by a strong Mack MP8 425 HP engine paired with a smooth-shifting...

Condition	Used
Usage	177,293 Miles
Duty Class	Heavy Duty Roll Off Truck
Upfit Type	Roll Off Body
Upfit Make	Galbreath
Upfit Model	Roll Off
Horse Power	425 HP
Engine Model	Mack MP8
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	4 Bag Air Ride
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.10 ratio
Lift Capacity	60000.00 Lb
Winch	Yes
Stock Number	U036869
MLS Number	14026873
Category	Roll Off Trucks
Last Updated	12/10/2025
Location	Springfield, MO, US
Sold By	Tri State Truck Center - Springfield, MO

Tri State Truck Center - Springfield, MO

2017 Mack Granite GU713 Tri Axle Dump Truck - MP8, 6 Speed Allison Rds Automatic, 16' Dump

$139,500 USD

Triaxle, 16' Ox Steel Dump w/60" Sides, MP8 Mack, Allison Automatic 6 Speed, 4.73 Ratio, Camelback, Double Frame, 20K Pusher, 228" WB, 21'4" Bridge, Dual P/S Boxes, Diff Lock, Electric Tarp,...

Condition	Used
Usage	12,608 Hours
Duty Class	Heavy Duty Dump Truck
Upfit Make	Ox Bodies
Bed Length	16 ft.
Engine Model	Mack MP8
Transmission	6 Speed Allison RDS Automatic
Suspension	Camelback
Rear Axle	Tri Axle
Rear End	4.73 ratio
Stock Number	HM036276
MLS Number	13961715
Category	Dump Trucks
Last Updated	12/4/2025
Location	Chatham, VA, US
Sold By	J&J Truck Sales

2019 Mack Granite 64FR Quad Axle Dump Truck - MP7-425M 425HP, 6 Speed Allison Rds Automatic, 19.5' Dump

$159,900 USD

Quad Axle, 19.5' Rogers Aluminum Dump w/48" Sides, MP7 Mack 425 HP, Allison Automatic 6 Speed, 4.50 Ratio, 3 Stage Engine Brake, Camelback, Double Frame, 18K FA, 44K RA, (2) Steerable L/A,...

Condition	Used
Usage	12,017 Hours
Duty Class	Heavy Duty Dump Truck
Upfit Make	Rogers
Bed Length	19.5
Horse Power	425 HP
Engine Model	Mack MP7-425M
Transmission	6 Speed Allison RDS Automatic
Suspension	Camelback
Rear Axle	Quad Axle
Rear End	4.50 ratio
Stock Number	KM002457
MLS Number	13302450
Category	Dump Trucks
Last Updated	12/4/2025
Location	Chatham, VA, US
Sold By	J&J Truck Sales

2020 Mack Granite 104FR Quad Axle Dump Truck - MP8 455HP, 6 Speed Allison Rds Automatic, 17.5' Dump

$164,900 USD

Quad Axle, 17.5' Tebco Aluminum Dump w/60" Sides, MP8 Mack 455 HP, Allison Automatic 6 Speed, 3.98 Ratio, 3 Stage Engine Brake, mRIDE, Double Frame, 18K FA, 46K RA, (2) 12,350 Steerable L/A,...

Condition	Used
Usage	10,876 Hours
Duty Class	Heavy Duty Dump Truck
Bed Length	17.5
Horse Power	455 HP
Engine Model	Mack MP8
Transmission	6 Speed Allison RDS Automatic
Suspension	Mack mRIDE
Rear Axle	Quad Axle
Rear End	3.98 ratio
Stock Number	LM001121
MLS Number	13498793
Category	Dump Trucks
Last Updated	12/4/2025
Location	Chatham, VA, US
Sold By	J&J Truck Sales

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2020 Mack Granite 104FR Quad Axle Dump Truck - MP8 455HP, 6 Speed Allison Rds Automatic

$164,900 USD

2020 Mack 104FR --- Quad Axle, MP8 Mack 455 HP, Allison Automatic 6 Speed, 3.98 Ratio, 18,000 Front Axle, 46,000 Rear Axle, 270" Wheelbase, 24' 10" Bridge, mRide, Double Frame, 3 Stage...

Condition	Used
Usage	321,802 Miles
Duty Class	Heavy Duty Dump Truck
Horse Power	455 HP
Engine Model	Mack MP8
Transmission	6 Speed Allison RDS Automatic
Suspension	Mack mRIDE
Rear Axle	Quad Axle
Stock Number	001121
MLS Number	13500797
Category	Dump Trucks
Last Updated	12/3/2025
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

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2019 Mack Granite 64FR Quad Axle Dump Truck - MP7 425HP, 6 Speed Allison Rds Automatic, 19.5' Dump

$159,900 USD

2019 Mack GR64F --- Quad Axle, MP7 Mack 425 HP, Allison Automatic 6 Speed, 18,000 Front Axle, 44,000 Rear Axle, 276" Wheelbase, 25' 3" Bridge, Camelback, 4.50 Ratio, Double Frame, 3 Stage...

Condition	Used
Usage	259,944 Miles
Duty Class	Heavy Duty Dump Truck
Upfit Make	Rogers
Bed Length	19.5
Horse Power	425 HP
Engine Model	Mack MP7
Drivetrain	10x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Camelback
Rear Axle	Quad Axle
Rear End	44,000 lb 4.50 ratio
Stock Number	002457
MLS Number	13302321
Category	Dump Trucks
Last Updated	12/3/2025
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

(833) 720-___ SHOW
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2013 Mack LEU612 Garbage Truck - MP7, 6 Speed Allison Rds Automatic

$75,900 USD

2013 Mack LEU612 10.8L Mack MP7 engine, 6 speed Allison, AM/FM, A/C, cruise, reverse camera system, 41,840 GVW, Telma Brake system, dual drive, low entry cab, 78K miles, 10,700 hours, fresh...

Condition	Used
Usage	10,700 Hours
Duty Class	Heavy Duty Garbage Truck
Engine Model	Mack MP7
Transmission	6 Speed Allison RDS Automatic
MLS Number	13993577
Category	Garbage Trucks
Last Updated	11/20/2025
Location	Nashville, TN, US
Sold By	Capital City Truck Sales LLC

(833) 478-___ SHOW
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2009 Mack Granite GU813 Roll Off Truck - MP7, 370HP, Automatic

Contact for price

2009 MACK GU813 ROLL OFF. ALLISON AUTOMATIC. 75000LB GALBREATH ROLL OFF. FACTORY DOUBLE FRAME. 18K FRONT, 44K REARS. INCLUDES TWO BOXES/CONTAINERS,

Condition	Used
Duty Class	Heavy Duty Roll Off Truck
Horse Power	370 HP
Engine Model	Mack MP7
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Tandem Axle
Rear End	44,000 lb
Stock Number	6800
MLS Number	13646481
Category	Roll Off Trucks
Last Updated	1/15/2026
Location	Palmetto, GA, US
Sold By	7E Truck Sales, LLC

IN STOCK - 2025 Mack MD7 Sewer / Septic Truck - Iron-Vac 2500 Gallon Tank Body

$154,993 USD

THIS UNIT IS CURRENTLY IN STOCK 2025 Mack MD7 (2 YR Manufacturer Warranty) Cummins 6.7L (300HP) 2500 Allison Automatic Transmission 33k GVWR 2500 Gallon Stainless SteelTank (5 YR...

Warranty

Condition	New
Duty Class	Heavy Duty Sewer / Septic Truck
Upfit Type	Tank Body
Upfit Make	Iron-Vac
Upfit Model	2500 Gallon
Horse Power	300 HP
Engine Model	Cummins 6.7L
Drivetrain	4x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	5.57 ratio
Capacity	2500 Gallons
Stock Number	1M2MDBAB8RS074507
MLS Number	13635786
Category	Sewer / Septic Trucks
Last Updated	11/4/2025
Location	Searcy, AR, US
Sold By	SepticTrucks.com

IN STOCK - 2025 Mack MD7 Sewer / Septic Truck - Iron-Vac 2500 Gallon Steel Tank Body

$155,974 USD

THIS UNIT IS CURRENTLY IN STOCK 2025 Mack MD7 (2 YR Manufacturer Warranty) Cummins 6.7L (300HP) 2500 Allison Automatic Transmission 33k GVWR 2500 Gallon Stainless SteelTank (5 YR...

Warranty

Condition	New
Duty Class	Heavy Duty Sewer / Septic Truck
Upfit Type	Tank Body
Upfit Make	Iron-Vac
Upfit Model	2500 Gallon
Horse Power	300 HP
Engine Model	Cummins 6.7L
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Capacity	2500 Gallons
Stock Number	1M2MDBAB4SS075904
MLS Number	13642840
Category	Sewer / Septic Trucks
Last Updated	10/31/2025
Location	Searcy, AR, US
Sold By	SepticTrucks.com

IN STOCK - 2025 Mack MD6 Sewer / Septic Truck - Iron-Vac 2100 Gallon Polished Aluminum Tank Tank Body

$159,029 USD

THIS UNIT IS CURRENTLY IN STOCK 2025 Mack MD6 (2 YR Manufacturer Warranty) Cummins 6.7L (300HP) 2500 Allison Automatic Transmission 26k GVWR 2100 Gallon Polished Aluminum Tank (5 YR...

Warranty

Condition	New
Duty Class	Medium Duty Sewer / Septic Truck
Upfit Type	Tank Body
Upfit Make	Iron-Vac
Upfit Model	2100 Gallon Polished Aluminum Tank
Horse Power	300 HP
Engine Model	Cummins 6.7L
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	5.57 ratio
Capacity	2100 Gallons
MLS Number	13703507
Category	Sewer / Septic Trucks
Last Updated	10/31/2025
Location	Searcy, AR, US
Sold By	SepticTrucks.com

IN STOCK - 2025 Mack MD7 Sewer / Septic Truck - Iron-Vac 2500 Gallon Steel Tank Body

$155,019 USD

THIS UNIT IS CURRENTLY IN STOCK 2025 Mack MD7 (2 YR Manufacturer Warranty) Cummins 6.7L (300HP) 2500 Allison Automatic Transmission 33k GVWR 2500 Gallon Stainless SteelTank (5 YR...

Warranty

Condition	New
Duty Class	Heavy Duty Sewer / Septic Truck
Upfit Type	Tank Body
Upfit Make	Iron-Vac
Upfit Model	2500 Gallon
Horse Power	300 HP
Engine Model	Cummins 6.7L
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	5.57 ratio
Capacity	2500 Gallons
Stock Number	1M2MDBABXSS075907
MLS Number	13642852
Category	Sewer / Septic Trucks
Last Updated	10/31/2025
Location	Searcy, AR, US
Sold By	SepticTrucks.com

2021 Mack Granite 84FR Tri Axle Dump Truck - MP7 425HP, 6 Speed Allison Rds Automatic, 17' Dump

$149,900 USD

Triaxle, 17' Tebco Steel Dump w/52" Sides, MP7 Mack 425 HP, Allison Automatic 6 speed, 3 Stage Engine Brake, HaulMaax, 18K FA, 46K RA, 13K Steerable L/A, 228" WB, 21'1" Bridge, Diff Lock,...

Condition	Used
Usage	11,458 Hours
Duty Class	Heavy Duty Dump Truck
Bed Length	17 ft.
Horse Power	425 HP
Engine Model	Mack MP7
Transmission	6 Speed Allison RDS Automatic
Rear Axle	Tri Axle
Stock Number	MM001718
MLS Number	13849053
Category	Dump Trucks
Last Updated	1/5/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

(844) 819-___ SHOW
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2019 Mack Granite GU713 Dump Truck

$143,500 USD

2019 MACK GRANITE GU713 Dump Truck, ***ONE OWNER***, 250,000 miles, **** original miles****, 425 HP, Engine Manufacturer- MACK, Engine Model- MP7, Engine Brake,...

Condition	Used
Usage	250,000 Miles
Duty Class	Heavy Duty Dump Truck
Engine Model	Mack MP7 engine
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Rear End	49,000 lb
MLS Number	13949704
Category	Dump Trucks
Last Updated	10/27/2025
Location	Southeast United States, US
Sold By	Carolina Used Machinery

(844) 962-___ SHOW
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2025 Mack Granite 64FR Dump Truck - MP8 425HP, 6 Speed Allison Rds Automatic

Contact for price

This Granite has a 14ft Biebeau Body with 3 coal doors,

Condition	New
Duty Class	Heavy Duty Dump Truck
Horse Power	425 HP
Engine Model	Mack MP8
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Mack mRIDE
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.80 ratio
Stock Number	46927
MLS Number	13796948
Category	Dump Trucks
Last Updated	10/23/2025
Location	Worcester, MA, US
Sold By	Ballard Truck Center

(833) 300-___ SHOW
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2011 Mack Granite GU813 Dump Truck - MP7 405HP, 6 Speed Allison Rds Automatic, 19' Dump

Contact for price

Make dump boxA.C.N.S Dump box modelAUR400, Dump box typeCONSTRUCTION, Side wall42", Dump box serial #1082, Manufactured date06 M - 10 Y, Door60", Door opening2 SENS, Heated boxOUI, CAB...

Condition	Used
Usage	15,659 Hours
Duty Class	Heavy Duty Dump Truck
Upfit Make	ACNS
Bed Length	19 ft.
Horse Power	405 HP
Engine Model	Mack MP7
Drivetrain	6x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Mack
Rear Axle	Tandem Axle
Rear End	46,000 lb 4.10 ratio
Stock Number	C-37007
MLS Number	13910410
Category	Dump Trucks
Last Updated	10/21/2025
Location	Montreal/ Ile-aux-noix/Toronto/NY, QC, Canada
Sold By	Gamache Truck Center