6 Speed Mechanic / Utility / Service Trucks For Sale

Your Current Search
Industry
Trucks
Category
Mechanic / Utility / Service Trucks
Transmission Speeds
6 Speed
Market Type
For Sale
Click the to remove the filter.
Narrow Your Search
Keyword Search
Search within the selected criteria
Equipment Type
Trucks (164)
Category
Mechanic / Utility / Service Trucks (164)
Model
Select a manufacturer to view available models.
Condition
Model Year
-
GVWR Category
Transmission Type
Transmission Speed
6 Speed (164)
Drive Train
Engine Manufacturer
Exterior Color
Suspension Type
Cab Style
Upfit Type
Upfit Manufacturer
Fuel Type
Mileage
-
Horsepower
-
Inspection Report
Yes (0)
Warranty
Price
-
Country
United States (164)
State / Region
Select a state below and click Refine Results.





















Seller Type
Market Type
For Sale (164)

Shop Mechanic / Utility / Service Trucks by Brand

Quick Filters

Showing 51 - 75 of 164 Service Truck Listings

51 - 75 of 164 listings
51 - 75 of 164 listings
GMC 3500 Mechanic / Service Truck - Duramax, 470HP, 6 Speed Automatic

2024 GMC 3500 Mechanic / Service Truck - Duramax, 470HP, 6 Speed Automatic

$67,500 USD
2024 GMC 3500 Service/Utility Truck, Diesel, 4x4 Powertrain Chassis: 14,287 Miles | 1,532 Hours, 6.6L Duramax V8 with 470HP/975lbs-ft, 6 Speed Automatic Transmission | 4x4, Hydraulic Brakes...
ConditionUsed
Usage14,287 Miles
Duty ClassLight Duty Service Truck
Horse Power470 HP
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear End7,250 lb
Stock NumberT18355M
MLS Number14422356
CategoryMechanic / Utility / Service Trucks
Last Updated6/12/2026
Location
Wheat Ridge, CO, US
Sold By
DTI Trucks
Chevrolet Silverado 3500 Mechanic / Service Truck - Duramax, 445HP, 6 Speed Automatic

2022 Chevrolet Silverado 3500 Mechanic / Service Truck - Duramax, 445HP, 6 Speed Automatic

$54,500 USD
2022 Chevrolet 3500HD Service/Utility Truck, Diesel, Auto, 4x4 Powertrain Chassis: 60528 miles, 6.6L Duramax V8 with 445HP/910lbs-ft Torque, 10 Speed Automatic Transmission | 4x4, Hydraulic...
ConditionUsed
Usage60,528 Miles
Duty ClassLight Duty Service Truck
Horse Power445 HP
Engine ModelDuramax L5P 6.6L V8
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End10,400 lb
Stock NumberT17810M
MLS Number14356620
CategoryMechanic / Utility / Service Trucks
Last Updated6/17/2026
Location
Wheat Ridge, CO, US
Sold By
DTI Trucks
RAM 5500 Mechanic / Service Truck - Cummins, 325HP

2019 RAM 5500 Mechanic / Service Truck - Cummins, 325HP

$79,500 USD
2019 RAM 5500 4x4, 180,379 Miles, 7,250 Lbs. FAWR, 13,500 Lbs. RAWR, 19,500 Lbs. GVWR, 6.7L Cummins Engine, 360 Horsepower, Automatic Transmission 2016 IMT DOM1SIII Service Body, IMT 7500-22...
ConditionUsed
Usage180,379 Miles
Horse Power325 HP
Engine ModelCummins 6.7L D
Drivetrain4x4
Transmission6 Speed
SuspensionSpring
Rear End14,706 lb
Stock NumberKG621440
MLS Number14106451
CategoryMechanic / Utility / Service Trucks
Last Updated6/18/2026
Location
Houston, TX, US
Sold By
Custom Truck One Source
Peterbilt 537 Mechanic / Service Truck - Paccar, 350HP, 6 Speed Allison Rds Automatic

2027 Peterbilt 537 Mechanic / Service Truck - Paccar, 350HP, 6 Speed Allison Rds Automatic

$289,500 USD
2027 Peterbilt 537 Mechanics Truck, Paccar PX9 Turbo Diesel Engine, 350 HP, Engine Brake, Allison 3000RDS 6 Speed Automatic Transmission, ONLY 670 Miles ONLY 19 Hours, 33K GVWR (12K Steer...
ConditionUsed
Usage19 Hours
Duty ClassHeavy Duty Service Truck
Bed Length14 ft.
Horse Power350 HP
Engine ModelPaccar PX9
Transmission6 Speed Allison RDS Automatic
SuspensionAir Ride
Rear End21,000 lb 4.89 ratio
Stock NumberT18074D
MLS Number14418017
CategoryMechanic / Utility / Service Trucks
Last Updated6/11/2026
Location
Thorton, CO, US
Sold By
DTI Trucks
Kenworth T370 Mechanic / Service Truck - Paccar, 350HP, 6 Speed Allison Rds Automatic

2019 Kenworth T370 Mechanic / Service Truck - Paccar, 350HP, 6 Speed Allison Rds Automatic

$199,500 USD
2019 Kenworth T370 Mechanics Truck, Paccar Px9 8.9L Turbo Diesel Engine, 350 HP, Engine Brake, Allison 3000RDS 6 Speed Transmission, 138,222 Miles 5,347 Engine Hours, 33K Lb. GVWR (12K...
ConditionUsed
Usage5,347 Hours
Duty ClassHeavy Duty Service Truck
Bed Length14 ft.
Horse Power350 HP
Engine ModelPaccar PX9
Drivetrain4x2
Transmission6 Speed Allison RDS Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End21,000 lb 4.78 ratio
Stock Numbert18169d
MLS Number14375050
CategoryMechanic / Utility / Service Trucks
Last Updated6/10/2026
Location
Denver, CO, US
Sold By
DTI Trucks
RAM 5500 Mechanic / Service Truck - Cummins, 360HP, 6 Speed Automatic

2024 RAM 5500 Mechanic / Service Truck - Cummins, 360HP, 6 Speed Automatic

$169,500 USD
2024 RAM 5500HD 4X4 Mechanics Truck, 6.7L Cummins Turbo Diesel Engine, 360 HP, Exhaust Brake, 6 Speed Automatic Transmission, ONLY 289 Miles Only 10 Hours, 19.5 GVWR ( 7,250 LB Steer Axle,...
ConditionUsed
Usage10 Hours
Duty ClassMedium Duty Service Truck
Horse Power360 HP
Engine ModelCummins B6.7
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End13,500 lb 4.44 ratio
Stock NumberT18128D
MLS Number14299475
CategoryMechanic / Utility / Service Trucks
Last Updated6/10/2026
Location
Denver, CO, US
Sold By
DTI Trucks
RAM 5500 Mechanic / Service Truck - 360HP, 6 Speed Automatic

2022 RAM 5500 Mechanic / Service Truck - 360HP, 6 Speed Automatic

$139,500 USD
2022 RAM 5500HD 4X4 Mechanics Truck, 6.7L Cummins Turbo Diesel Engine, 360HP, 6 Speed Automatic Transmission, Only 78,276 Miles 2,851 Engine Hours, 19.5 GVWR (7,250 LB Steer Axle, 13,500 LB...
ConditionUsed
Usage2,851 Hours
Duty ClassMedium Duty Service Truck
Bed Length11 ft.
Horse Power360 HP
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End13,500 lb 4.89 ratio
Stock NumberT18106D
MLS Number14263190
CategoryMechanic / Utility / Service Trucks
Last Updated6/10/2026
Location
Denver, CO, US
Sold By
DTI Trucks
Peterbilt 537 Mechanic / Service Truck - Paccar, 350HP, 6 Speed Allison Rds Automatic

2027 Peterbilt 537 Mechanic / Service Truck - Paccar, 350HP, 6 Speed Allison Rds Automatic

$279,500 USD
2027 Peterbilt 537 Mechanics Truck, Paccar PX9 Turbo Diesel Engine, 350 HP, Engine Brake, Allison 3000RDS 6 Speed Automatic Transmission, ONLY 1,130 Miles ONLY 28 Hours, 33K GVWR (12K Steer...
ConditionUsed
Usage28 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 4.89 ratio
Stock NumberT18033D
MLS Number14255570
CategoryMechanic / Utility / Service Trucks
Last Updated6/10/2026
Location
Denver, CO, US
Sold By
DTI Trucks
RAM 5500 Mechanic / Service Truck - Cummins, 360HP, 6 Speed Automatic

2022 RAM 5500 Mechanic / Service Truck - Cummins, 360HP, 6 Speed Automatic

$134,500 USD
2022 RAM 5500 4X4 Mechanics Truck, 6.7L Cummins Turbo Diesel Engine, 360HP, Exhaust Brake, 6 Speed Automatic Transmission, Only 68,967 Miles Only 1,858 Engine Hours, 19.5K GVWR (7,250 LB...
ConditionUsed
Usage1,858 Hours
Duty ClassMedium Duty Service Truck
Horse Power360 HP
Engine ModelCummins B6.7
Drivetrain4x4
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End13,500 lb
Stock NumberT17995D
MLS Number14140875
CategoryMechanic / Utility / Service Trucks
Last Updated6/10/2026
Location
Denver, CO, US
Sold By
DTI Trucks
Kenworth T270 Mechanic / Service Truck - Cummins, 300HP, 6 Speed Allison Rds Automatic

2018 Kenworth T270 Mechanic / Service Truck - Cummins, 300HP, 6 Speed Allison Rds Automatic

$89,900 USD
Ready to work mechanic's truck!, DOT'd PM'd, Freshly detailed!, Cummins power and Allison Transmission!!, Ask about our financing, and extended warranty options, **ALL USED TRUCKS ARE SOLD...
ConditionUsed
Usage8,181 Hours
Duty ClassMedium Duty Service Truck
Horse Power300 HP
Engine ModelCummins B6.7
Drivetrain4x2
Transmission6 Speed Allison RDS Automatic
SuspensionSpring
Rear AxleSingle Axle
Stock Number285164
MLS Number14068012
CategoryMechanic / Utility / Service Trucks
Last Updated6/10/2026
Location
Smithfield, PA, US
Sold By
Hunter Truck
Freightliner M2 106 Mechanic / Service Truck - Cummins, 240HP, 6 Speed Allison Rds Automatic

2016 Freightliner M2 106 Mechanic / Service Truck - Cummins, 240HP, 6 Speed Allison Rds Automatic

$57,900 USD
11' Service Body, Miller ENPAK Rotary Screw Air Compressor, IMT 8600-22 Crane with Remote, Very nice used unit, Serviced and DOT'D, Ask about our financing, and extended warranty options,...
ConditionUsed
Usage15,925 Hours
Duty ClassMedium Duty Service Truck
Bed Length11 ft.
Horse Power240 HP
Engine ModelCummins B6.7
Drivetrain4x2
Transmission6 Speed Allison RDS Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End17,500 lb 5.88 ratio
Stock Number281432
MLS Number13857519
CategoryMechanic / Utility / Service Trucks
Last Updated6/10/2026
Location
Smithfield, PA, US
Sold By
Hunter Truck
Peterbilt 337 Mechanic / Service Truck - Paccar, 260HP, 6 Speed Manual

2014 Peterbilt 337 Mechanic / Service Truck - Paccar, 260HP, 6 Speed Manual

$79,900 USD
IMT 14' Service Truck on a Peterbilt 337 Chassis. Service body has been fully reconditioned and painted Truck was fully DOT'd and PM'd in our Peterbilt Shop. Can send repair order over on...
ConditionUsed
Usage19,435 Hours
Duty ClassHeavy Duty Service Truck
Horse Power260 HP
Engine ModelPaccar PX9
Drivetrain4x2
Transmission6 Speed Manual
SuspensionSpring
Rear AxleSingle Axle
Rear End21,000 lb 4.11 ratio
Stock Number246937
MLS Number13813906
CategoryMechanic / Utility / Service Trucks
Last Updated6/10/2026
Location
Smithfield, PA, US
Sold By
Hunter Truck
2019 Chevy Silverado 2500 HD Work Truck,  8' Knapheide Utility Body, Immaculate Condition, Ready to Work

2019 Chevy Silverado 2500 HD Work Truck, 8' Knapheide Utility Body, Immaculate Condition, Ready to Work

$21,995 USD
FOR SALE: 2019 CHEVROLET SILVERADO 2500HD WORK TRUCK WITH KNAPHEIDE 8' UTILITY BODY – READY TO WORK, Offered for sale is a 2019 Chevrolet Silverado 2500HD Work Truck equipped with an 8-foot...
ConditionUsed
Usage172,172 Miles
Duty ClassLight Duty Service Truck
Upfit TypeService Utility Truck Body
Upfit MakeKnapheide
Bed Length8 ft.
Horse Power360 HP
Engine ModelL96 - E85 MAX, Iron
Drivetrain4x2
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End6,200 lb
Stock Number165667
MLS Number14234568
CategoryMechanic / Utility / Service Trucks
Last Updated6/11/2026
Location
Miami, FL, US
Sold By
Truck and Van Outlet
Freightliner 108SD Mechanic / Service Truck - Cummins, 300HP

2026 Freightliner 108SD Mechanic / Service Truck - Cummins, 300HP

$309,995 USD
Owning a Freightliner 108SD 4x2 IMT 10/72SL K3 hi-rail section truck provides a versatile and efficient solution for rail maintenance, service, and material handling operations. Built on the...
ConditionNew
Horse Power300 HP
Engine ModelCummins L9 D
Drivetrain4x2
Transmission6 Speed
Rear End21,000 lb
Stock NumberTHWU2790
MLS Number14413166
CategoryMechanic / Utility / Service Trucks
Last Updated6/24/2026
Location
Kansas City, MO, US
Sold By
Custom Truck One Source
Freightliner 108SD Mechanic / Service Truck - Cummins, 300HP

2026 Freightliner 108SD Mechanic / Service Truck - Cummins, 300HP

$309,995 USD
Owning a Freightliner 108SD 4x2 IMT 10/72SL K3 hi-rail section truck provides a versatile and efficient solution for rail maintenance, service, and material handling operations. Built on the...
ConditionNew
Horse Power300 HP
Engine ModelCummins L9 D
Drivetrain4x2
Transmission6 Speed
Rear End21,000 lb
Stock NumberTHWU2789
MLS Number14413165
CategoryMechanic / Utility / Service Trucks
Last Updated6/24/2026
Location
Kansas City, MO, US
Sold By
Custom Truck One Source
Chevrolet 5500 Mechanic / Service Truck - Duramax, 350HP

2023 Chevrolet 5500 Mechanic / Service Truck - Duramax, 350HP

$149,995 USD
Owning a Chevrolet 5500 4x4 hi-rail section truck provides excellent versatility and reliability for rail maintenance and service operations. Built on the durable Chevrolet 5500 chassis, it...
ConditionNew
Horse Power350 HP
Engine ModelDuramax 6.6L D
Drivetrain4x4
Transmission6 Speed
SuspensionSpring
Rear End15,500 lb
Stock NumberPH621971
MLS Number14412954
CategoryMechanic / Utility / Service Trucks
Last Updated6/24/2026
Location
Kansas City, MO, US
Sold By
Custom Truck One Source
2019 Ford F-450SD 9' UTILITY BODY, POWERSTROKE DIESEL, VERMEER B450 BACKHOE ATTACHMENT

2019 Ford F-450SD 9' UTILITY BODY, POWERSTROKE DIESEL, VERMEER B450 BACKHOE ATTACHMENT

$31,995 USD
FOR SALE: 2019 FORD F-450 XL – MECHANIC SERVICE TRUCK-Vermeer B450 Backhoe, The 2019 Ford F-450 XL Super Duty is a heavy-duty mechanic’s truck designed for field service, equipment...
ConditionUsed
Usage4,307 Hours
Duty ClassMedium Duty Service Truck
Upfit TypeBackhoe
Upfit MakeVermeer
Upfit ModelB450
Bed Length9 ft.
Horse Power330 HP
Engine ModelFord Powerstroke
Drivetrain4x2
Transmission6 Speed Automatic
Rear AxleSingle Axle
Rear End12,880 lb
Stock NumberA19364
MLS Number13950023
CategoryMechanic / Utility / Service Trucks
Last Updated6/8/2026
Location
Miami, FL, US
Sold By
Truck and Van Outlet
2018 CHEVY SILVERADO 2500HD, 8' KNAPHEIDE UTILITY/SERVICE BODY, 6.0L V8 POWER, 1-OWNER, FLEET MAINTAINED

2018 CHEVY SILVERADO 2500HD, 8' KNAPHEIDE UTILITY/SERVICE BODY, 6.0L V8 POWER, 1-OWNER, FLEET MAINTAINED

$18,995 USD
FOR SALE: 2018 CHEVROLET SILVERADO 2500HD SERVICE TRUCK – 8' KNAPHEIDE UTILITY BODY – 6.0L VORTEC V8 – ONE OWNER, Offered for sale is a 2018 Chevrolet Silverado 2500HD service truck...
ConditionUsed
Usage156,369 Miles
Duty ClassLight Duty Service Truck
Upfit TypeService Utility Truck Body
Upfit MakeKnapheide
Upfit Model8 Ft
Bed Length8 ft.
Horse Power360 HP
Engine ModelChevy VORTEC
Drivetrain4x2
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End6,700 lb
Stock Number129714
MLS Number14292769
CategoryMechanic / Utility / Service Trucks
Last Updated6/8/2026
Location
Miami, FL, US
Sold By
Truck and Van Outlet
Freightliner M2 106 Mechanic / Service Truck - Cummins, 330HP

2027 Freightliner M2 106 Mechanic / Service Truck - Cummins, 330HP

$245,780 USD
NEW SERVICETRUCK+CRANE, 330 HP CUMMINS. Automatic transmission, 12000 lb Front Axle, 21000 lb Rear Axle, 218 WB.
ConditionNew
Horse Power330 HP
Engine ModelCummins L9 D
Drivetrain4x2
Transmission6 Speed
Rear End21,000 lb
Stock NumberVDWY0485
MLS Number14411180
CategoryMechanic / Utility / Service Trucks
Last Updated6/6/2026
Location
Kansas City, MO, US
Sold By
Custom Truck One Source
Peterbilt 536 Mechanic / Service Truck - Paccar, 300HP

2026 Peterbilt 536 Mechanic / Service Truck - Paccar, 300HP

$237,995 USD
Peterbilt 536 4x2 IMT DOM3 Service Truck is built on an 89-inch Cab-to-Axle (CA) Class 6 chassis and powered by a 300 hp PACCAR PX-7 diesel with a 6-speed automatic transmission. It features...
ConditionNew
Horse Power300 HP
Engine ModelPaccar PX7 D
Drivetrain4x2
Transmission6 Speed
SuspensionNeway
Rear End21,000 lb
Stock NumberTM789036
MLS Number13992444
CategoryMechanic / Utility / Service Trucks
Last Updated6/5/2026
Location
Denver, CO, US
Sold By
Custom Truck One Source
Peterbilt 337 Mechanic / Service Truck - Paccar, 330HP, 6 Speed Allison Rds Automatic

2017 Peterbilt 337 Mechanic / Service Truck - Paccar, 330HP, 6 Speed Allison Rds Automatic

Contact for price
Pardon my appearance, I just got here and havent taken a shower yet , 2017 Peterbilt 337 single axle truck #5313; Vin #2NP2HJ7X1HM440150, , Paccar PX-9, 330 horsepower inline 6 cylinder turbo...
ConditionUsed
Usage195,241 Miles
Duty ClassHeavy Duty Service Truck
Horse Power330 HP
Engine ModelPaccar PX9
Drivetrain4x2
Transmission6 Speed Allison RDS Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End21,000 lb 4.78 ratio
Stock Number5313
MLS Number14408608
CategoryMechanic / Utility / Service Trucks
Last Updated6/4/2026
Location
Pacific, WA, US
Sold By
Puget Sound Truck Sales, Inc.
Kenworth T370 Mechanic / Service Truck - Paccar, 300HP, 6 Speed Automatic

2019 Kenworth T370 Mechanic / Service Truck - Paccar, 300HP, 6 Speed Automatic

$136,900 USD
2019 Kenworth T370 --- Single Axle, PX9 Paccar 300 HP, Allison Automatic 6 Speed, 5.57 Ratio, 12,000 Front Axle, 21,000 Rear Axle, 155" Wheelbase, 12' 11" Bridge, Spring, Air Brake, Exhaust...
ConditionUsed
Usage177,380 Miles
Duty ClassHeavy Duty Service Truck
Horse Power300 HP
Engine ModelPaccar PX9
Transmission6 Speed Automatic
SuspensionSpring
Rear AxleSingle Axle
Rear End21,000 lb 5.57 ratio
Stock Number259378
MLS Number14358843
CategoryMechanic / Utility / Service Trucks
Last Updated6/4/2026
Location
Chatham, VA, US
Sold By
Atkinson Truck Sales
Freightliner M2 106 Mechanic / Service Truck - Cummins, 330HP

2027 Freightliner M2 106 Mechanic / Service Truck - Cummins, 330HP

$245,780 USD
NEW SERVICETRUCK+CRANE, 330 HP CUMMINS. Automatic transmission, 12000 lb Front Axle, 21000 lb Rear Axle, 218 WB.
ConditionNew
Horse Power330 HP
Engine ModelCummins L9 D
Drivetrain4x2
Transmission6 Speed
Rear End21,000 lb
Stock NumberVDWY0499
MLS Number14407975
CategoryMechanic / Utility / Service Trucks
Last Updated6/4/2026
Location
Kansas City, MO, US
Sold By
Custom Truck One Source
Kenworth T370 Mechanic / Service Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

2016 Kenworth T370 Mechanic / Service Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$97,900 USD
Single Axle, 11' Service Body, Summit 10620 Crane (10,000 Capacity), Hydraulic Outriggers, Belaire 3G3HHL Gas Powered Compressor, 15 Gallon Non-Potable Water Tank, PX7 Paccar 300 HP, Allison...
ConditionUsed
Usage13,427 Hours
Duty ClassHeavy Duty Service Truck
Bed Length11 ft.
Horse Power300 HP
Engine ModelPaccar PX7
Transmission6 Speed Allison RDS Automatic
SuspensionAir Ride
Rear AxleSingle Axle
Rear End21,000 lb 5.25 ratio
Stock NumberGM117044
MLS Number14241222
CategoryMechanic / Utility / Service Trucks
Last Updated6/3/2026
Location
Chatham, VA, US
Sold By
J&J Truck Sales
Freightliner M2 106 Mechanic / Service Truck - Cummins, 330HP

2027 Freightliner M2 106 Mechanic / Service Truck - Cummins, 330HP

$237,195 USD
Owning a Freightliner M2106 4x2 IMT 12600-27 service truck provides a dependable and efficient solution for heavy-duty field service and maintenance operations. Built on the reliable M2106...
ConditionNew
Horse Power330 HP
Engine ModelCummins L9 D
Drivetrain4x2
Transmission6 Speed
Rear End21,000 lb
Stock NumberVDWY0474
MLS Number14404295
CategoryMechanic / Utility / Service Trucks
Last Updated6/3/2026
Location
Kansas City, MO, US
Sold By
Custom Truck One Source
Did you find what you were looking for? Yes No
Got a mechanic / service truck to sell? In minutes, you can create an online listing for your mechanic / service truck and advertise it to thousands of buyers.
Start selling today