6 Speed Mechanic / Utility / Service Trucks For Sale

(844) 445-___ SHOW
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2018 Kenworth T370 Conventional Day Cab, Mechanic / Service Truck.

$132,500 USD

~ Exceptional values available until June 30 th, 2026. ~ Pricing is subject to modification. Dealer Doc Fee: $ 290, Sales tax and licensing fees are applicable within the state of...

Condition	Used
Usage	55,566 Miles
Duty Class	Heavy Duty Service Truck
Bed Length	14 ft.
Horse Power	300 HP
Engine Model	Paccar PX-9
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Leaf Springs
Rear Axle	Single Axle
Rear End	21,000 lb 5.57 ratio
Outriggers	Yes
Max Reach	28 ft
Lift Capacity	10000.00 Lb
Lift Capacity	5.00 Ton
Winch	Yes
Stock Number	210993
MLS Number	14284707
Category	Mechanic / Utility / Service Trucks
Last Updated	6/16/2026
Location	Midvale, UT, US
Sold By	MTS Utah, Inc.

(844) 445-___ SHOW
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2018 INTERNATIONAL DURASTAR 4300 Mechanic, 10,000 pd Crane, Cummins ISB 6.7 L, Allison Auto, 325 H.P.

Price Drop $79,900 USD

~ Exceptional values available until June 30th, 2026.~ Pricing is subject to modification. Dealer Doc Fee: $ 290, Sales tax and licensing fees are applicable within the state of...

Condition	Used
Usage	9,909 Hours
Duty Class	Heavy Duty Service Truck
Upfit Make	MAINTANER
Bed Length	14 ft.
Engine Model	Cummins B 6.7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Leaf
Rear Axle	Single Axle
Rear End	20,000 lb
Door Type	Swing
Outriggers	Yes
Winch	Yes
Stock Number	595067
MLS Number	13859521
Category	Mechanic / Utility / Service Trucks
Last Updated	6/16/2026
Location	Midvale, UT, US
Sold By	MTS Utah, Inc.

2024 GMC SIERRA 3500HD CREW CAB PRO UTILITY SERVICE TRUCK, 4X4, 6.6L GAS POWER, TOWING PACKAGE, NO ACCIDENTS

$37,995 USD

FOR SALE: 2024 GMC SIERRA 3500HD CREW CAB PRO SERVICE TRUCK – 4X4 – 6.6L GAS V8 – 8' SERVICE BODY – CLEAN CARFAX, Offered for sale is a 2024 GMC Sierra 3500HD Crew Cab Pro Service Truck, a...

Condition	Used
Usage	3,939 Hours
Duty Class	Light Duty Service Truck
Upfit Type	Service Utility Truck Body
Bed Length	8 ft.
Engine Model	L8T
Drivetrain	4x2
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	7,250 lb
Stock Number	321496
MLS Number	14411202
Category	Mechanic / Utility / Service Trucks
Last Updated	6/15/2026
Location	Miami, FL, US
Sold By	Truck and Van Outlet

(833) 660-___ SHOW
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2024 RAM 3500 Mechanic / Service Truck - Cummins, 370HP, 6 Speed Automatic

$58,500 USD

2024 Ram 3500 Service/Utility, Diesel, Auto, 4x4 Powertrain Chassis: 68,646 Miles | 2,245 Hours, Cummins B6.7, 370HP/850lbs-ft, 6-Speed 68RFE Transmission | 4x4, Exhaust Brake | Tow/Haul...

Condition	Used
Usage	68,646 Miles
Duty Class	Light Duty Service Truck
Horse Power	370 HP
Drivetrain	4x4
Transmission	6 Speed Automatic
Rear Axle	Single Axle
Rear End	9,750 lb
Stock Number	T18348M
MLS Number	14425735
Category	Mechanic / Utility / Service Trucks
Last Updated	6/13/2026
Location	Wheat Ridge, CO, US
Sold By	DTI Trucks

(833) 660-___ SHOW
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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...

Condition	Used
Usage	14,287 Miles
Duty Class	Light Duty Service Truck
Horse Power	470 HP
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear End	7,250 lb
Stock Number	T18355M
MLS Number	14422356
Category	Mechanic / Utility / Service Trucks
Last Updated	6/12/2026
Location	Wheat Ridge, CO, US
Sold By	DTI Trucks

(833) 660-___ SHOW
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2022 Chevrolet Silverado 3500 Mechanic / Service Truck - Duramax, 445HP, 6 Speed Automatic

Price Drop $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...

Condition	Used
Usage	60,528 Miles
Duty Class	Light Duty Service Truck
Horse Power	445 HP
Engine Model	Duramax L5P 6.6L V8
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	10,400 lb
Stock Number	T17810M
MLS Number	14356620
Category	Mechanic / Utility / Service Trucks
Last Updated	6/17/2026
Location	Wheat Ridge, CO, US
Sold By	DTI Trucks

(855) 699-___ SHOW
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2019 RAM 5500 Mechanic / Service Truck - Cummins, 325HP

Price Drop $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...

Condition	Used
Usage	180,379 Miles
Horse Power	325 HP
Engine Model	Cummins 6.7L D
Drivetrain	4x4
Transmission	6 Speed
Suspension	Spring
Rear End	14,706 lb
Stock Number	KG621440
MLS Number	14106451
Category	Mechanic / Utility / Service Trucks
Last Updated	6/18/2026
Location	Houston, TX, US
Sold By	Custom Truck One Source

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...

Condition	Used
Usage	19 Hours
Duty Class	Heavy Duty Service Truck
Bed Length	14 ft.
Horse Power	350 HP
Engine Model	Paccar PX9
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear End	21,000 lb 4.89 ratio
Stock Number	T18074D
MLS Number	14418017
Category	Mechanic / Utility / Service Trucks
Last Updated	6/11/2026
Location	Thorton, CO, US
Sold By	DTI Trucks

(844) 305-___ SHOW
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2019 Western Star 4700 Mechanic / Service Truck - Cummins, 300HP, 6 Speed Allison Rds Automatic

$125,900 USD

Single Axle, 11' Adkins Service Body w/24" Work Platform, IMT 10,000 Lb Crane, IMT CAS80R Hydraulic Air Compressor, Hydraulic Outriggers, Energizer 3000 Watt Power Inverter, Miller Bobcat...

Condition	Used
Usage	205,249 Miles
Duty Class	Heavy Duty Service Truck
Bed Length	11 ft.
Horse Power	300 HP
Engine Model	Cummins L9
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb 5.38 ratio
Stock Number	KPKX5179
MLS Number	14391398
Category	Mechanic / Utility / Service Trucks
Last Updated	6/10/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

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...

Condition	Used
Usage	5,347 Hours
Duty Class	Heavy Duty Service Truck
Bed Length	14 ft.
Horse Power	350 HP
Engine Model	Paccar PX9
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	21,000 lb 4.78 ratio
Stock Number	t18169d
MLS Number	14375050
Category	Mechanic / Utility / Service Trucks
Last Updated	6/10/2026
Location	Denver, CO, US
Sold By	DTI Trucks

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,...

Condition	Used
Usage	10 Hours
Duty Class	Medium Duty Service Truck
Horse Power	360 HP
Engine Model	Cummins B6.7
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	13,500 lb 4.44 ratio
Stock Number	T18128D
MLS Number	14299475
Category	Mechanic / Utility / Service Trucks
Last Updated	6/10/2026
Location	Denver, CO, US
Sold By	DTI Trucks

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...

Condition	Used
Usage	2,851 Hours
Duty Class	Medium Duty Service Truck
Bed Length	11 ft.
Horse Power	360 HP
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	13,500 lb 4.89 ratio
Stock Number	T18106D
MLS Number	14263190
Category	Mechanic / Utility / Service Trucks
Last Updated	6/10/2026
Location	Denver, CO, US
Sold By	DTI Trucks

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...

Condition	Used
Usage	28 Hours
Duty Class	Heavy Duty Service Truck
Horse Power	350 HP
Engine Model	Paccar PX9
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	21,000 lb 4.89 ratio
Stock Number	T18033D
MLS Number	14255570
Category	Mechanic / Utility / Service Trucks
Last Updated	6/10/2026
Location	Denver, CO, US
Sold By	DTI Trucks

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...

Condition	Used
Usage	1,858 Hours
Duty Class	Medium Duty Service Truck
Horse Power	360 HP
Engine Model	Cummins B6.7
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	13,500 lb
Stock Number	T17995D
MLS Number	14140875
Category	Mechanic / Utility / Service Trucks
Last Updated	6/10/2026
Location	Denver, CO, US
Sold By	DTI Trucks

(724) 243-___ SHOW
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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...

Condition	Used
Usage	8,181 Hours
Duty Class	Medium Duty Service Truck
Horse Power	300 HP
Engine Model	Cummins B6.7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Stock Number	285164
MLS Number	14068012
Category	Mechanic / Utility / Service Trucks
Last Updated	6/10/2026
Location	Smithfield, PA, US
Sold By	Hunter Truck

(724) 243-___ SHOW
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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,...

Condition	Used
Usage	15,925 Hours
Duty Class	Medium Duty Service Truck
Bed Length	11 ft.
Horse Power	240 HP
Engine Model	Cummins B6.7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	17,500 lb 5.88 ratio
Stock Number	281432
MLS Number	13857519
Category	Mechanic / Utility / Service Trucks
Last Updated	6/10/2026
Location	Smithfield, PA, US
Sold By	Hunter Truck

(724) 243-___ SHOW
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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...

Condition	Used
Usage	19,435 Hours
Duty Class	Heavy Duty Service Truck
Horse Power	260 HP
Engine Model	Paccar PX9
Drivetrain	4x2
Transmission	6 Speed Manual
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb 4.11 ratio
Stock Number	246937
MLS Number	13813906
Category	Mechanic / Utility / Service Trucks
Last Updated	6/10/2026
Location	Smithfield, PA, US
Sold By	Hunter Truck

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

$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...

Condition	Used
Usage	172,172 Miles
Duty Class	Light Duty Service Truck
Upfit Type	Service Utility Truck Body
Upfit Make	Knapheide
Bed Length	8 ft.
Horse Power	360 HP
Engine Model	L96 - E85 MAX, Iron
Drivetrain	4x2
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	6,200 lb
Stock Number	165667
MLS Number	14234568
Category	Mechanic / Utility / Service Trucks
Last Updated	6/11/2026
Location	Miami, FL, US
Sold By	Truck and Van Outlet

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...

Condition	New
Horse Power	300 HP
Engine Model	Cummins L9 D
Drivetrain	4x2
Transmission	6 Speed
Rear End	21,000 lb
Stock Number	THWU2790
MLS Number	14413166
Category	Mechanic / Utility / Service Trucks
Last Updated	6/24/2026
Location	Kansas City, MO, US
Sold By	Custom Truck One Source

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...

Condition	New
Horse Power	300 HP
Engine Model	Cummins L9 D
Drivetrain	4x2
Transmission	6 Speed
Rear End	21,000 lb
Stock Number	THWU2789
MLS Number	14413165
Category	Mechanic / Utility / Service Trucks
Last Updated	6/24/2026
Location	Kansas City, MO, US
Sold By	Custom Truck One Source

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...

Condition	New
Horse Power	350 HP
Engine Model	Duramax 6.6L D
Drivetrain	4x4
Transmission	6 Speed
Suspension	Spring
Rear End	15,500 lb
Stock Number	PH621971
MLS Number	14412954
Category	Mechanic / Utility / Service Trucks
Last Updated	6/24/2026
Location	Kansas City, MO, US
Sold By	Custom Truck One Source

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

$143,500 USD

2023 Chevrolet 5500 4x4, 32,033 Miles, 7,500 Lbs. FAWR, 15,000 Lbs. RAWR, 19,500 Lbs. GVWR, 6.6L Duramax Diesel Engine, 350 Horsepower, Automatic Transmission 2023 Load King Service Body,...

Condition	Used
Horse Power	350 HP
Engine Model	6.6L D
Drivetrain	4x4
Transmission	6 Speed
Suspension	Spring
Rear End	15,000 lb
Stock Number	PH781526
MLS Number	14346952
Category	Mechanic / Utility / Service Trucks
Last Updated	6/14/2026
Location	Poulsbo, WA, US
Sold By	Custom Truck One Source

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...

Condition	Used
Usage	4,307 Hours
Duty Class	Medium Duty Service Truck
Upfit Type	Backhoe
Upfit Make	Vermeer
Upfit Model	B450
Bed Length	9 ft.
Horse Power	330 HP
Engine Model	Ford Powerstroke
Drivetrain	4x2
Transmission	6 Speed Automatic
Rear Axle	Single Axle
Rear End	12,880 lb
Stock Number	A19364
MLS Number	13950023
Category	Mechanic / Utility / Service Trucks
Last Updated	6/8/2026
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

$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...

Condition	Used
Usage	156,369 Miles
Duty Class	Light Duty Service Truck
Upfit Type	Service Utility Truck Body
Upfit Make	Knapheide
Upfit Model	8 Ft
Bed Length	8 ft.
Horse Power	360 HP
Engine Model	Chevy VORTEC
Drivetrain	4x2
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	6,700 lb
Stock Number	129714
MLS Number	14292769
Category	Mechanic / Utility / Service Trucks
Last Updated	6/8/2026
Location	Miami, FL, US
Sold By	Truck and Van Outlet