Used 6 Speed Single Axle Mechanic / Utility / Service Trucks For Sale

2017 Kenworth T370 Mechanic / Service Truck - Cummins, 300HP, 6 Speed Allison Rds Automatic

$89,500 USD

Single Axle, 11' CASECO Service Body, Stellar 12630 Crane (12,000 Capacity), Wireless Remote, VANAIR RC40 Hydraulic Air Compressor, Hydraulic Outriggers, (15) 21" Drawers, (2) 41" Drawers, 2...

Condition	Used
Usage	15,638 Hours
Duty Class	Medium Duty Service Truck
Bed Length	11 ft.
Horse Power	300 HP
Engine Model	Cummins ISB6.7
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	16,000 lb 5.57 ratio
Stock Number	HM143223
MLS Number	14450786
Category	Mechanic / Utility / Service Trucks
Last Updated	6/25/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

2015 Kenworth T370 Mechanic / Service Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$95,900 USD

Single Axle, 14' Knapheide Service Body, Stellar 7621 Crane (7,500 Capacity), VANAIR Compressor, Hydraulic Outriggers, Power Inverter, (14) 27" Drawers, (21) 18" Drawers, Air Reel, Acetylene...

Condition	Used
Usage	10,754 Hours
Duty Class	Heavy Duty Service Truck
Bed Length	14 ft.
Horse Power	300 HP
Engine Model	Paccar PX9
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb 5.57 ratio
Stock Number	FM425085
MLS Number	14109080
Category	Mechanic / Utility / Service Trucks
Last Updated	6/25/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

2015 Kenworth T370 Mechanic / Service Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

$95,900 USD

Single Axle, 14' Knapheide Service Body, 6406H AutoCrane w/Wired Remote (6,400 Capacity), VANAIR Compressor, Hydraulic Outriggers, Power Inverter, Air Reel, Acetylene/Oxygen Reels, (14) 26"...

Condition	Used
Usage	8,731 Hours
Duty Class	Heavy Duty Service Truck
Bed Length	14 ft.
Horse Power	300 HP
Engine Model	Paccar PX9
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb 5.57 ratio
Stock Number	FM437114
MLS Number	14109068
Category	Mechanic / Utility / Service Trucks
Last Updated	6/25/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

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

$99,500 USD

Single Axle, 14' Service Body, Stellar 7621 Crane (7,500 Capacity), Hydraulic Outriggers, American Eagle 30R Compressor, Power Inverter, (7) 28" Drawers, (7) 16" Drawers, (7) 14" Drawers,...

Condition	Used
Usage	10,044 Hours
Duty Class	Heavy Duty Service Truck
Bed Length	14 ft.
Horse Power	300 HP
Engine Model	Paccar PX9
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb 5.57 ratio
Stock Number	GM124085
MLS Number	14109054
Category	Mechanic / Utility / Service Trucks
Last Updated	6/25/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

2018 Kenworth T370 Mechanic / Service Truck - Paccar, 350HP, 6 Speed Allison Rds Automatic

Contact for price

2018 Kenworth T370 Mechanics Truck, Paccar PX9 8.9L Turbo Diesel Engine, 350 HP, Engine Brake, Allison 3000RDS 6 Speed Transmission, ONLY 95,283 Miles 3,491 Engine Hours, 33K Lb. GVWR (12K...

Condition	Used
Usage	3,491 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 4.78 ratio
Stock Number	T18126D
MLS Number	14447352
Category	Mechanic / Utility / Service Trucks
Last Updated	6/24/2026
Location	Denver, CO, US
Sold By	DTI Trucks

2007 Kenworth T300 Mechanic / Service Truck - Cummins, 260HP, 6 Speed Allison Rds Automatic

$84,500 USD

2007 Kenworth T300 Mechanics Truck, Cummins ISC 8.3L Turbo Diesel Engine, 260 HP, Exhaust Brake, Allison 3000 RDS 6 Speed Automatic Transmission, 243,156 ECM Verified Miles, 33K Lbs. GVWR,...

Condition	Used
Usage	243,156 Miles
Duty Class	Heavy Duty Service Truck
Bed Length	14 ft.
Horse Power	260 HP
Engine Model	Cummins ISC260
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	21,000 lb 4.88 ratio
Stock Number	T18203D
MLS Number	14444385
Category	Mechanic / Utility / Service Trucks
Last Updated	6/23/2026
Location	Thorton, CO, US
Sold By	DTI Trucks

2024 RAM 2500 Mechanic / Service Truck - Cummins, 370HP, 6 Speed Automatic

$52,500 USD

2024 Ram 2500 Service/Utility, Diesel, Auto, 4x4 Powertrain Chassis: 68,601 Miles | 2,361Hours, Cummins B6.7, 370HP/850lbs-ft, 6-Speed 68RFE Transmission | 4x4, Exhaust Brake | Tow/Haul...

Condition	Used
Usage	68,601 Miles
Duty Class	Light Duty Service Truck
Horse Power	370 HP
Drivetrain	4x4
Transmission	6 Speed Automatic
Rear Axle	Single Axle
Rear End	6,040 lb
Stock Number	T18345M
MLS Number	14442304
Category	Mechanic / Utility / Service Trucks
Last Updated	6/20/2026
Location	Wheat Ridge, CO, US
Sold By	DTI Trucks

(855) 807-___ SHOW
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2019 Ford F-550 XL Mechanic / Service Truck - 6.7L POWER STROKE, 330HP, 6 Speed Automatic

$74,500 USD

CRANE! WELDER! COMPRESSOR! HOSE REELS! FORD F-550 DUALLY 4X4! 6.7L POWERSTROKE, STELLAR EC3200 CRANE, 2 BOOMS, 3200LBS @ 3' - 640LBS @ 15' MAX BOOM, REMOTE CONTROL FOR CRANE, VANAIR AIR/ARC,...

Condition	Used
Usage	155,926 Miles
Duty Class	Medium Duty Service Truck
Horse Power	330 HP
Engine Model	Ford 6.7L POWER STROKE
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	14,700 lb
Stock Number	7298S
MLS Number	14384138
Category	Mechanic / Utility / Service Trucks
Last Updated	6/18/2026
Location	Houston, TX, US
Sold By	Southern Truck Sales Ltd

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

2023 GMC Sierra 2500 Mechanic / Service Truck - Chevrolet, 400HP, 6 Speed Automatic

$56,500 USD

2023 GMC 2500HD Service/Utility Truck, Gas, 4x4 Powertrain Chassis: 29,539 miles | 1002 Engine Hours, 6.6L L8T V8 with 400HP/464lbs-ft Torque, 6 Speed Automatic Transmission | 4x4,...

Condition	Used
Usage	29,539 Miles
Duty Class	Light Duty Service Truck
Horse Power	400 HP
Engine Model	L8T
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	6,390 lb
Stock Number	T17831M
MLS Number	14356615
Category	Mechanic / Utility / Service Trucks
Last Updated	6/17/2026
Location	Wheat Ridge, CO, US
Sold By	DTI Trucks

(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.

$79,900 USD

***** Exceptional values available until July 24th, 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	7/3/2026
Location	Midvale, UT, US
Sold By	MTS Utah, Inc.

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

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...

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

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

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

(844) 982-___ SHOW
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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

(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

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

(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