Used 6 Speed Mechanic / Utility / Service Trucks For Sale

(833) 660-___ SHOW
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2023 RAM 2500 Mechanic / Service Truck - Cummins, 370HP, 6 Speed Automatic

$44,500 USD

2023 Ram 2500 Service/Utility, Diesel, Auto, 4x4 Powertrain Chassis: 88,050 Miles, Cummins B6.7, 370HP/850lbs-ft, 6-Speed 68RFE Transmission | 4x4, Exhaust Brake | Tow/Haul Mode, Hydraulic...

Condition	Used
Usage	88,050 Miles
Duty Class	Light Duty Service Truck
Horse Power	370 HP
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	6,040 lb
Stock Number	T18344M
MLS Number	14434706
Category	Mechanic / Utility / Service Trucks
Last Updated	6/17/2026
Location	Wheat Ridge, CO, US
Sold By	DTI Trucks

(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

(855) 699-___ SHOW
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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...

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

(855) 653-___ SHOW
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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

(855) 653-___ SHOW
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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

(855) 653-___ SHOW
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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

(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

(844) 716-___ SHOW
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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...

Condition	Used
Usage	195,241 Miles
Duty Class	Heavy Duty Service Truck
Horse Power	330 HP
Engine Model	Paccar PX9
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb 4.78 ratio
Stock Number	5313
MLS Number	14408608
Category	Mechanic / Utility / Service Trucks
Last Updated	6/4/2026
Location	Pacific, WA, US
Sold By	Puget Sound Truck Sales, Inc.

(855) 804-___ SHOW
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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...

Condition	Used
Usage	177,380 Miles
Duty Class	Heavy Duty Service Truck
Horse Power	300 HP
Engine Model	Paccar PX9
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb 5.57 ratio
Stock Number	259378
MLS Number	14358843
Category	Mechanic / Utility / Service Trucks
Last Updated	6/4/2026
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

(844) 305-___ SHOW
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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...

Condition	Used
Usage	13,427 Hours
Duty Class	Heavy Duty Service Truck
Bed Length	11 ft.
Horse Power	300 HP
Engine Model	Paccar PX7
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	21,000 lb 5.25 ratio
Stock Number	GM117044
MLS Number	14241222
Category	Mechanic / Utility / Service Trucks
Last Updated	6/3/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

(866) 695-___ SHOW
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2007 Ford F-450 Mechanic / Service Truck

$20,000 USD

127950 Miles, 6 Speed Manual Transmission

Condition	Used
Usage	127,950 Miles
Duty Class	Medium Duty Service Truck
Transmission	6 Speed Manual
Stock Number	MCOPT2013B44919
MLS Number	12628250
Category	Mechanic / Utility / Service Trucks
Last Updated	6/3/2026
Location	Dallas, TX, US
Sold By	MCO Truck and Equipment

(855) 699-___ SHOW
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2019 RAM 5500 Mechanic / Service Truck - Cummins, 360HP

$71,120 USD

2019 Dodge Ram 5500 4x4 IMT DOM1SIII + 7500 Service Truck, Cummins 6.7@360 H.P. 122,055 Miles and 4,097 Hours, Aisin AS69RD HD 6 Speed Automatic Overdrive Transmission, 19,500 L.B. GVWR, 168...

Condition	Used
Usage	122,055 Miles
Horse Power	360 HP
Engine Model	Cummins 6.7L Turbocharged
Drivetrain	4x4
Transmission	6 Speed
Suspension	Spring
Rear End	13,500 lb
Stock Number	KG621441
MLS Number	14402000
Category	Mechanic / Utility / Service Trucks
Last Updated	6/3/2026
Location	Houston, TX, US
Sold By	Custom Truck One Source

(844) 479-___ SHOW
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2018 Chevrolet Silverado 2500HD Extended Cab Mechanic / Service Truck - Knapheide Service Utility Truck Body

$35,900 USD

2018 Chevy Silverado 2500HD Double Cab Service/Utility Truck powered by a 6.0L V8 engine paired with an automatic transmission. Equipped with A/C, tilt steering, cruise control, alarm system...

Condition	Used
Usage	118,444 Miles
Duty Class	Light Duty Service Truck
Upfit Type	Service Utility Truck Body
Upfit Make	Knapheide
Horse Power	364 HP
Drivetrain	4x2
Transmission	6 Speed Automatic
Rear Axle	Single Axle
Stock Number	13506
MLS Number	14042832
Category	Mechanic / Utility / Service Trucks
Last Updated	5/30/2026
Location	North Hills, CA, US
Sold By	Truck Depot

(833) 801-___ SHOW
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2008 Ford F-750 Mechanic / Service Truck - Cummins, 240HP, 6 Speed Manual

$30,000 USD

GOOD TRUCK, RUNS EXCELLENT, MAINTAINED BY DEERE SERVICE, EXCELLENT SHAPE, IMT BODY, ROLLING DRAWER TOOL BOXES, IMT 6025 CRANE WITH WIRELESS REMOTE, IMT 435 HYDRAULIC AIR COMPRESSOR!,

Condition	Used
Usage	261,043 Miles
Duty Class	Heavy Duty Service Truck
Horse Power	240 HP
Engine Model	Cummins ISB6.7
Drivetrain	4x2
Transmission	6 Speed Manual
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb
Stock Number	08F750261SER
MLS Number	14268869
Category	Mechanic / Utility / Service Trucks
Last Updated	5/29/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(844) 476-___ SHOW
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2019 Chevrolet 6500 Mechanic / Service Truck - Chevy, 350HP

$106,400 USD

2019 Chevrolet 6500 4x4 Load King Stinger 7522 Service Truck, Duramax 6.6@350 H.P. 129,385 Miles and 5,135 Hours, Allison A2700 EVS 6 Speed Automatic Overdrive Transmission, 22,500 L.B. GVWR...

Condition	Used
Usage	129,385 Miles
Horse Power	350 HP
Engine Model	Chevy 6.6L V8
Drivetrain	4x4
Transmission	6 Speed
Suspension	Spring
Rear End	15,000 lb
Stock Number	KH385713
MLS Number	13716312
Category	Mechanic / Utility / Service Trucks
Last Updated	6/2/2026
Location	Oklahoma City, OK, US
Sold By	Custom Truck One Source

(844) 982-___ SHOW
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2017 FORD F-350SD UTILITY TRUCK, 8' SERVICE BODY, CREW CAB, LOW MILES, 1-OWNER, CLEAN CARFAX, READY TO WORK

$27,995 USD

FOR SALE: 2017 FORD F-350 SUPER DUTY CREW CAB SERVICE TRUCK – KNAPHEIDE 8' SERVICE BODY – LOW MILES – ONE OWNER, Offered for sale is a 2017 Ford F-350 Super Duty Crew Cab service truck...

Condition	Used
Usage	87,979 Miles
Duty Class	Light Duty Service Truck
Upfit Type	Service Utility Truck Body
Upfit Make	Knapheide
Bed Length	8 ft.
Horse Power	385 HP
Engine Model	Ford Efi
Drivetrain	4x2
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	10,040 lb
Stock Number	C82504
MLS Number	14391296
Category	Mechanic / Utility / Service Trucks
Last Updated	5/27/2026
Location	Miami, FL, US
Sold By	Truck and Van Outlet

(833) 829-___ SHOW
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2020 Chevrolet Silverado 4500HD Mechanic / Service Truck - 6 Speed Automatic

$52,500 USD

2020 Chevrolet Silverado 4500 Service Truck Quick Highlights:, , Engine: 6.6L V8 Duramax Turbodiesel – Powerful and efficient for heavy-duty tasks , Transmission: Automatic – Smooth and...

Condition	Used
Usage	74,462 Miles
Duty Class	Medium Duty Service Truck
Bed Length	11 ft.
Drivetrain	4x2
Transmission	6 Speed Automatic
Stock Number	4CT1616
MLS Number	14069878
Category	Mechanic / Utility / Service Trucks
Last Updated	5/22/2026
Location	Greensboro, NC, US
Sold By	Impex Heavy Metal

(833) 829-___ SHOW
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2019 Ford F550 SD XL Mechanic / Service Truck - 6 Speed Automatic

$41,500 USD

2019 Ford F-550 Super Duty XL Service Truck Quick Highlights:, , Engine: V10 – Powerful and reliable for heavy-duty jobs , Transmission: Automatic – Smooth and efficient performance...

Condition	Used
Usage	151,272 Miles
Duty Class	Medium Duty Service Truck
Bed Length	5 ft.
Drivetrain	4x4
Transmission	6 Speed Automatic
Stock Number	4FT5921
MLS Number	13932558
Category	Mechanic / Utility / Service Trucks
Last Updated	5/22/2026
Location	Greensboro, NC, US
Sold By	Impex Heavy Metal

(844) 305-___ SHOW
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2015 Ford F-750 XLT Mechanic / Service Truck - Cummins, 325HP, 6 Speed Automatic

$79,500 USD

Single Axle, 11' AutoCrane Service Body, 100006H AutoCrane with Wireless Remote, Hydraulic Air Compressor, Hydraulic Outriggers, (11) 26" Drawers, Reman ISB Cummins 325 HP (Reman Date...

Condition	Used
Usage	6,392 Hours
Duty Class	Heavy Duty Service Truck
Bed Length	11 ft.
Horse Power	325 HP
Engine Model	Cummins ISB
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb
Stock Number	FV000323
MLS Number	14380879
Category	Mechanic / Utility / Service Trucks
Last Updated	5/20/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

(844) 476-___ SHOW
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2021 Chevrolet 5500 Mechanic / Service Truck - Gm, 350HP

$84,000 USD

2021 Chevrolet 5500 4x4 Load King Voyager Service Truck, Duramax 6.6L Diesel Engine, 134,591 Miles, Engine Brake, Allison 1750 RDS (Rugged Duty Series) 6 Speed Automatic Overdrive...

Condition	Used
Usage	134,591 Miles
Horse Power	350 HP
Engine Model	6.6L V8, TURBO DURAMAX
Drivetrain	4x4
Transmission	6 Speed
Suspension	Spring
Rear End	15,500 lb
Stock Number	MH661779
MLS Number	14295232
Category	Mechanic / Utility / Service Trucks
Last Updated	5/9/2026
Location	Hooksett, NH, US
Sold By	Custom Truck One Source

(844) 714-___ SHOW
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2017 Kenworth T370 Mechanic / Service Truck - Paccar, 330HP, 6 Speed Allison Rds Automatic

Contact for price

Altech AA55E bucket body, 56' Boom, 600 lb bucket capacity, 4 outriggers, Fabco TC137 4x4 transfer case, Allison 3500RDS transmission, Paccar PX9 330HP, Engine brake, Reyco spring suspension...

Condition	Used
Usage	147,119 Miles
Duty Class	Heavy Duty Service Truck
Bed Length	56 ft.
Horse Power	330 HP
Engine Model	Paccar PX9
Drivetrain	4x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	23,000 lb 5.57 ratio
Stock Number	6951
MLS Number	14035568
Category	Mechanic / Utility / Service Trucks
Last Updated	5/7/2026
Location	Boise, ID, US
Sold By	Diesel Depot

(844) 982-___ SHOW
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2018 Ford F-550 Super Duty 9' Utility/Service Truck, 6.7L Powerstroke, 4X4, One-Owner, Clean Carfax

$34,995 USD

FOR SALE: 2018 FORD F-550 SUPER DUTY 4X4 9' SERVICE / UTILITY TRUCK, For sale is a 2018 Ford F-550 Super Duty 4x4 configured as a heavy-duty utility / service truck equipped with a 9-foot...

Condition	Used
Usage	7,129 Hours
Duty Class	Medium Duty Service Truck
Upfit Type	Service Utility Truck Body
Upfit Make	MCB
Bed Length	9.4
Horse Power	330 HP
Engine Model	Ford Powerstroke
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	14,706 lb
Stock Number	B36662
MLS Number	14137866
Category	Mechanic / Utility / Service Trucks
Last Updated	5/5/2026
Location	Miami, FL, US
Sold By	Truck and Van Outlet

(833) 801-___ SHOW
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2008 Ford F-750 Mechanic / Service Truck - Cummins, 325HP, 6 Speed Manual

$20,000 USD

GOOD TRUCK, RUNS EXCELLENT, AIR BRAKES, DIFFERENTIAL LOCK, AUTO CRANE BODY, 8005H AUTOCRANE, AIR COMPRESSOR HOSE REEL, LOTS OF STORAGE!,

Condition	Used
Usage	118,877 Miles
Duty Class	Heavy Duty Service Truck
Horse Power	325 HP
Drivetrain	4x2
Transmission	6 Speed Manual
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb
Stock Number	08F750118SER
MLS Number	14020306
Category	Mechanic / Utility / Service Trucks
Last Updated	5/1/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(844) 476-___ SHOW
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2019 Peterbilt 337 Mechanic / Service Truck - Paccar, 300HP

$122,500 USD

2019 Peterbilt 337 4x2, 140,784 Miles, 33,000 Lbs. GVWR, 12,000 Lbs. FAWR, 21,000 Lbs. RAWR, Paccar PX-7 Engine, 300 Horsepower, Allison 2500RDS Transmission 2018 Load King Voyager II, 2018...

Condition	Used
Usage	158,703 Miles
Horse Power	300 HP
Engine Model	Paccar PX7 D
Drivetrain	4x2
Transmission	6 Speed
Suspension	Spring
Rear End	21,000 lb
Stock Number	KM634016
MLS Number	13243036
Category	Mechanic / Utility / Service Trucks
Last Updated	7/22/2026
Location	Denver, CO, US
Sold By	Custom Truck One Source