6 Speed Mechanic / Utility / Service Trucks For Sale in Colorado

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1-19 of 19 results
Freightliner M2 106 Mechanic / Service Truck - Cummins, 350HP, 6 Speed Allison Rds Automatic
58 1

2025 Freightliner M2 106 Mechanic / Service Truck - Cummins, 350HP, 6 Speed Allison Rds Automatic

Price Drop
$222,000 USD
2025 Freightliner M2-106 Plus Single Axle Summit Mechanics Truck, Cummins L9 Turbo Diesel Engine, 350 HP, Engine Brake, Allison 3000 RDS 6 Speed Automatic Transmission, ONLY 2,475 Original...
ConditionUsed
Usage56 Hours
Duty ClassMedium Duty Service Truck
Horse Power350 HP
Engine ModelCummins L9
Drivetrain4x2
Transmission6 Speed Allison RDS Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End19,000 lb 5.22 ratio
Stock NumberT16713D
MLS Number13451223
CategoryMechanic / Utility / Service Trucks
Last Updated6/4/2025
Location
Denver, CO, US
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Freightliner M2 106 Mechanic / Service Truck - Cummins, 350HP, 6 Speed Allison Rds Automatic
60 1

2025 Freightliner M2 106 Mechanic / Service Truck - Cummins, 350HP, 6 Speed Allison Rds Automatic

Recently Updated
$222,000 USD
2025 Freightliner M2-106 Plus Single Axle Summit Mechanics Truck, Cummins L9 Turbo Diesel Engine, 350 HP, Engine Brake, Allison 3000 RDS 6 Speed Automatic Transmission, ONLY 2,489 Original...
ConditionUsed
Usage58 Hours
Duty ClassMedium Duty Service Truck
Horse Power350 HP
Engine ModelCummins L9
Drivetrain4x2
Transmission6 Speed Allison RDS Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End19,000 lb 5.22 ratio
Stock NumberT16712D
MLS Number13451217
CategoryMechanic / Utility / Service Trucks
Last Updated6/4/2025
Location
Denver, CO, US
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Ford F-350 Mechanic / Service Truck - 475HP, 6 Speed Automatic
20 0

2013 Ford F-350 Mechanic / Service Truck - 475HP, 6 Speed Automatic

Price Drop
$29,500 USD
2013 Ford F350 Service Truck, 6.5' Utility Body, 6.7L Power Stroke Turbo Diesel, 6 Speed Automatic Transmission, 4x4, Locking Rear Differential, 94,364 Miles, 11,100 GVWR (No CDL Required),...
ConditionUsed
Usage94,364 Miles
Duty ClassLight Duty Service Truck
Bed Length6 ft.
Horse Power475 HP
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End6,290 lb
Stock NumberT16859W
MLS Number13392836
CategoryMechanic / Utility / Service Trucks
Last Updated6/4/2025
Location
Denver, CO, US
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RAM 3500 Mechanic / Service Truck - Cummins, 360HP, 6 Speed Automatic
32 0

2021 RAM 3500 Mechanic / Service Truck - Cummins, 360HP, 6 Speed Automatic

$62,500 USD
2021 Ram 3500 HD 9ft Service/Utility Truck, 6.7L Cummins 360HP, 6 Speed Automatic Transmission, Exhaust Brake, 14,000 GVWR, 6,000 lbs Front Axle, 9,850lb Rear Axle, Four Wheel Drive (4X4),...
ConditionUsed
Usage40,940 Miles
Duty ClassLight Duty Service Truck
Bed Length9 ft.
Horse Power360 HP
Engine ModelCummins B6.7
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End9,850 lb
Stock NumberT17318M
MLS Number13617052
CategoryMechanic / Utility / Service Trucks
Last Updated5/31/2025
Location
Wheat Ridge, CO, US
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International DuraStar 4400 Mechanic / Service Truck - 6 Speed Automatic
44 0

2012 International DuraStar 4400 Mechanic / Service Truck - 6 Speed Automatic

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2012 International 4400 Durastar Single Axle Mechanics Truck, Allison 6 Speed Automatic Transmission, ONLY 85,120 Miles, 33K GVWR, 12K Steer Axle, 21K Drive Axle, 191” Wheelbase, 125” CT,...
ConditionUsed
Usage85,120 Miles
Duty ClassHeavy Duty Service Truck
Drivetrain4x2
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End21,000 lb
Stock NumberT17039D
MLS Number13616948
CategoryMechanic / Utility / Service Trucks
Last Updated5/31/2025
Location
Denver, CO, US
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Kenworth T380 Mechanic / Service Truck - Paccar, 350HP
65 0

2026 Kenworth T380 Mechanic / Service Truck - Paccar, 350HP

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2026 Kenworth T380 Mechanics Truck, 8.9L Paccar PX-9 Diesel Engine, 350 HP, Engine Brake, Allison 6 Speed Automatic Transmission, ONLY 2,338 Miles 53.5 Engine Hours, 33K GVWR (12K Steer...
ConditionUsed
Usage53 Hours
Duty ClassHeavy Duty Service Truck
Horse Power350 HP
Engine ModelPaccar PX9
Drivetrain4x2
Transmission6 Speed Allison RDS Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End21,000 lb 4.88 ratio
Stock NumberT17123D
MLS Number13612176
CategoryMechanic / Utility / Service Trucks
Last Updated5/30/2025
Location
Denver, CO, US
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Chevrolet W4500 Mechanic / Service Truck - L96, 297HP, 6 Speed Automatic
5 0

2017 Chevrolet W4500 Mechanic / Service Truck - L96, 297HP, 6 Speed Automatic

$29,500 USD
2017 Chevrolet W4500 12' Hackney Plumbing/HVAC Service/Box Truck With Shelving, 6.0L Vortec V8 Gas Engine, Automatic Transmisson, 115,856 Miles, 12' Long Hackney All Aluminum Body x 75" Tall...
ConditionUsed
Usage115,856 Miles
Duty ClassMedium Duty Service Truck
Horse Power297 HP
Engine ModelL96
Drivetrain4x2
Transmission6 Speed Automatic
Rear AxleSingle Axle
Stock Number17215W
MLS Number13540114
CategoryMechanic / Utility / Service Trucks
Last Updated5/22/2025
Location
Denver, CO, US
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Ford F-550 Mechanic / Service Truck - 6.7L POWER STROKE, 300HP, 6 Speed Automatic
49 0

2013 Ford F-550 Mechanic / Service Truck - 6.7L POWER STROKE, 300HP, 6 Speed Automatic

$99,500 USD
2013 Ford F-550 Extended Cab Superduty 4x4 Mechanics Truck, 6.7L Powerstroke Turbo Diesel Engine, 300 HP, 6 Speed Automatic Transmission, ONLY 74,102 Miles 4,312 Engine Hours, 19,500 Lbs....
ConditionUsed
Usage4,312 Hours
Duty ClassMedium Duty Service Truck
Horse Power300 HP
Engine ModelFord 6.7L POWER STROKE
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End14,706 lb 4.88 ratio
Stock NumberT17174D
MLS Number13584639
CategoryMechanic / Utility / Service Trucks
Last Updated5/20/2025
Location
Denver, CO, US
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Chevrolet Silverado 5500HD Mechanic / Service Truck - Isuzu, 350HP, 6 Speed Allison Rds Automatic
36 0

2023 Chevrolet Silverado 5500HD Mechanic / Service Truck - Isuzu, 350HP, 6 Speed Allison Rds Automatic

$124,500 USD
2023 Chevrolet Silverado GM515 4X4 Mechanics Crane Truck, 6.6L Duramax L5D Turbo Diesel Engine, 350 HP, Exhaust Brake, Allison 6 Speed Automatic Transmission, ONLY 437 Miles, ONLY 17 Engine...
ConditionUsed
Usage17 Hours
Duty ClassMedium Duty Service Truck
Horse Power350 HP
Engine ModelIsuzu 6HK1TC
Drivetrain4x4
Transmission6 Speed Allison RDS Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End15,000 lb
Stock NumberT17041D
MLS Number13534068
CategoryMechanic / Utility / Service Trucks
Last Updated5/10/2025
Location
Denver, CO, US
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Ford F-250 Mechanic / Service Truck - Chevrolet, 325HP, 6 Speed Automatic
23 0

2020 Ford F-250 Mechanic / Service Truck - Chevrolet, 325HP, 6 Speed Automatic

$52,500 USD
2020 Ford F250 Service/Utility Truck, 6.2L Boss V8 Engine, 6 Speed Automatic Torqshift Transmission, 10,000 GVWR, 5,600 lbs Front Axle, 6,340 Rear Axle, Four Wheel Drive (4X4), Auto Transfer...
ConditionUsed
Usage63,485 Miles
Duty ClassLight Duty Service Truck
Horse Power325 HP
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End6,340 lb
Stock NumberT16822M
MLS Number13247817
CategoryMechanic / Utility / Service Trucks
Last Updated4/29/2025
Location
Wheat Ridge, CO, US
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Ford F-750 Mechanic / Service Truck - 6.7L POWER STROKE, 330HP, 6 Speed Automatic
46 0

2017 Ford F-750 Mechanic / Service Truck - 6.7L POWER STROKE, 330HP, 6 Speed Automatic

$124,500 USD
2017 Ford F-750 Mechanics Truck, 6.7L Powerstroke Turbo Diesel Engine, 330 HP, Exhaust Brake, 6 Speed Automatic Transmission, ONLY 8,856 Miles 3,520 Engine Hours, 33K GVWR (12K Steer Axle,...
ConditionUsed
Usage3,520 Hours
Duty ClassMedium Duty Service Truck
Horse Power330 HP
Engine ModelFord 6.7L POWER STROKE
Drivetrain4x2
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End21,000 lb 4.56 ratio
Stock NumberT17071D
MLS Number13534062
CategoryMechanic / Utility / Service Trucks
Last Updated4/24/2025
Location
Denver, CO, US
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Ford F-250 Mechanic / Service Truck - 385HP, 6 Speed Automatic
31 0

2022 Ford F-250 Mechanic / Service Truck - 385HP, 6 Speed Automatic

$57,500 USD
2022 Ford F250 Service/Utility Truck, 6.2L Boss V8 Engine, 6 Speed Automatic Torqshift Transmission, 10,000 GVWR, 5,600 lbs Front Axle, 6,340 Rear Axle, Four Wheel Drive (4X4), Auto Transfer...
ConditionUsed
Usage35,099 Miles
Duty ClassLight Duty Service Truck
Bed Length8 ft.
Horse Power385 HP
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End6,340 lb
Stock NumberT17143M
MLS Number13534012
CategoryMechanic / Utility / Service Trucks
Last Updated4/23/2025
Location
Wheat Ridge, CO, US
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Ford F-550 Mechanic / Service Truck - 6.8L TRITON V10, 6 Speed Automatic
44 0

2018 Ford F-550 Mechanic / Service Truck - 6.8L TRITON V10, 6 Speed Automatic

$59,500 USD
2018 Ford F-550 Extended Cab Mechanics Truck, 6.8L V10 Triton Engine, 6 Speed Automatic Transmission, 132,081 Miles 5,441 Engine Hours, 19.5K GVWR (6K Steer Axle, 14.7K Drive Axle), NO CDL...
ConditionUsed
Usage5,441 Hours
Duty ClassMedium Duty Service Truck
Engine ModelFord 6.8L TRITON V10
Drivetrain4x2
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End14,706 lb 4.88 ratio
Stock NumberT17097D
MLS Number13527458
CategoryMechanic / Utility / Service Trucks
Last Updated4/18/2025
Location
Denver, CO, US
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Ford F-350 Mechanic / Service Truck - 6.2L FLEX FUEL V8, 385HP, 6 Speed Automatic
25 0

2022 Ford F-350 Mechanic / Service Truck - 6.2L FLEX FUEL V8, 385HP, 6 Speed Automatic

$59,500 USD
2022 Ford F350 Service/Utility Truck, 6.2L Boss V8 Engine 385HP, 6 Speed Automatic Torqshift Transmission, 11,300 GVWR, 4,800 lbs Front Axle, 6,780 Rear Axle, Four Wheel Drive (4X4), Auto...
ConditionUsed
Usage30,389 Miles
Duty ClassLight Duty Service Truck
Horse Power385 HP
Engine ModelFord 6.2L FLEX FUEL V8
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End6,780 lb
Stock NumberT17091M
MLS Number13517776
CategoryMechanic / Utility / Service Trucks
Last Updated4/15/2025
Location
Wheat Ridge, CO, US
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Chevrolet Silverado 6500HD Mechanic / Service Truck - Duramax, 350HP, 6 Speed Automatic
53 1

2019 Chevrolet Silverado 6500HD Mechanic / Service Truck - Duramax, 350HP, 6 Speed Automatic

$124,500 USD
2019 Chevrolet 6500HD 4x4 Mechanics Truck, 6.6L Duramax Turbo Diesel Engine, 350 HP, Exhaust Brake, Allison 6 Speed Automatic Transmission, 106,928 Miles, 4,636 Engine Hours, 22,500 GVWR,...
ConditionUsed
Usage4,636 Hours
Duty ClassMedium Duty Service Truck
Horse Power350 HP
Engine ModelDuramax L5P 6.6L V8
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End15,000 lb
Stock NumberT16928D
MLS Number13452979
CategoryMechanic / Utility / Service Trucks
Last Updated4/1/2025
Location
Denver, CO, US
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Chevrolet Silverado 5500HD Mechanic / Service Truck - Duramax, 350HP, 6 Speed Allison Rds Automatic
48 1

2021 Chevrolet Silverado 5500HD Mechanic / Service Truck - Duramax, 350HP, 6 Speed Allison Rds Automatic

$139,500 USD
2021 Chevrolet 5500 4X4 Mechanics Truck, 6.6L Duramax Diesel Engine, 350 HP, Exhaust Brake, Allison 6 Speed Automatic Transmission, ONLY 48,264 Miles 3,704 Engine Hours, 19.5K GVWR (7.5K...
ConditionUsed
Usage3,704 Hours
Duty ClassMedium Duty Service Truck
Horse Power350 HP
Drivetrain4x4
Transmission6 Speed Allison RDS Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End13,500 lb
Stock NumberT17037D
MLS Number13447038
CategoryMechanic / Utility / Service Trucks
Last Updated3/13/2025
Location
Denver, CO, US
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Ford F-550 Mechanic / Service Truck - 6.7L POWER STROKE, 330HP, 6 Speed Automatic
51 0

2018 Ford F-550 Mechanic / Service Truck - 6.7L POWER STROKE, 330HP, 6 Speed Automatic

$139,500 USD
2018 Ford F550 Super Duty XL 4x4 Mechanics Truck, 6.7L Powerstroke Turbo Diesel Engine, 330 HP, Exhaust Brake, 6 Speed Torque Shift Automatic Transmission, ONLY 26,024 Original Miles 1,852...
ConditionUsed
Usage1,852 Hours
Duty ClassMedium Duty Service Truck
Horse Power330 HP
Engine ModelFord 6.7L POWER STROKE
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End14,706 lb
Stock NumberT17078D
MLS Number13444148
CategoryMechanic / Utility / Service Trucks
Last Updated3/12/2025
Location
Denver, CO, US
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Ford F-350 Mechanic / Service Truck - 350HP, 6 Speed Automatic
4 0

2021 Ford F-350 Mechanic / Service Truck - 350HP, 6 Speed Automatic

$59,500 USD
2021 Ford F350 Service/Utility Truck, 7.3L V8 Engine, 6 Speed Automatic Torqshift Transmission, 11,300 GVWR, 4,800 lbs Front Axle, 6,780 lbs Rear Axle, Four Wheel Drive (4X4), Auto Transfer...
ConditionUsed
Usage37,908 Miles
Duty ClassLight Duty Service Truck
Horse Power350 HP
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End6,780 lb
Stock NumberT17050M
MLS Number13409789
CategoryMechanic / Utility / Service Trucks
Last Updated2/22/2025
Location
Wheat Ridge, CO, US
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Ford F-350 Mechanic / Service Truck - 475HP, 6 Speed Automatic
6 0

2015 Ford F-350 Mechanic / Service Truck - 475HP, 6 Speed Automatic

$42,500 USD
2015 Ford F350 8' Service / Utility Truck, 6.7L Power Stroke Turbo Diesel Engine, Automatic Transmission, 4x4, 93,406 Miles, 1,953 Hours, 11,200 GVWR (No CDL Required) 5,940lb Front Axle,...
ConditionUsed
Usage1,953 Hours
Duty ClassLight Duty Service Truck
Horse Power475 HP
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End6,290 lb
Stock NumberT17025W
MLS Number13406503
CategoryMechanic / Utility / Service Trucks
Last Updated2/19/2025
Location
Denver, CO, US
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