6 Speed Mechanic / Utility / Service Trucks For Sale by Dealerships

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Featured Item

2005 Peterbilt 335 Mechanic / Service Truck - IMT 6025 Dominator II Mechanic Body

$75,000 USD

2005 Peterbilt 335 Mechanics Truck – Fully Equipped Salt Lake City, UT Heavy-duty, turnkey mechanics truck ready to work. Truck Details:, , 2005 Peterbilt 335, , CAT C7 reman engine –...

Condition	Used
Usage	32,607 Hours
Duty Class	Heavy Duty Service Truck
Upfit Type	Mechanic Body
Upfit Make	IMT
Upfit Model	Dominator II
Bed Length	14 ft.
Horse Power	275 HP
Engine Model	Caterpillar 3126/C7
Emission Rating	Tier 3
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Door Type	Swing
Outriggers	Yes
Winch	Yes
MLS Number	14062216
Category	Mechanic / Utility / Service Trucks
Last Updated	12/26/2025
Location	Salt Lake City, UT, US
Sold By	Salt Lake Truck Wash & Detail

(833) 658-___ SHOW
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Featured Item

2011 Ford F-350 Extended Cab Mechanic / Service Truck, 4x4, Tow Hitch, Reading Bed, Utility, Diesel, Low Miles, Construction, Handyman

$29,999 USD

2011 Ford F350XL Utility , Stock: A31175, VIN:1FT8X3BT5BEA31175, Year:2011, Make: Ford, Model: F350XL, Engine:Powerstroke 6.7L V-8 diesel direct injection, intercooled turbo, diesel,...

Condition	Used
Usage	89,811 Miles
Duty Class	Light Duty Service Truck
Horse Power	400 HP
Engine Model	Ford
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	7,280 lb 3.55 ratio
Stock Number	A31175
MLS Number	13316245
Category	Mechanic / Utility / Service Trucks
Last Updated	1/7/2026
Location	Elkton, MD, US
Sold By	Complete Recycling Group LLC

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Featured Item

2021 RAM 5500HD CREW CAB Mechanic / Service Truck, 4WD Service Truck, Plumber, Construction, Handyman, Electrician, Diesel 9FT Bed

$59,999 USD

2021 Ram 5500 Utility Stock: 546633 VIN:3C7WRNELXMG546633 Year:2021 Make: Ram Model: 5500 Engine:Cummins 6.7L I-6 diesel direct injection, VVT intercooled turbo, diesel, engine with 360HP,...

Condition	Used
Usage	58,243 Miles
Duty Class	Medium Duty Service Truck
Horse Power	360 HP
Engine Model	Cummins
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	13,500 lb 4.44 ratio
Stock Number	546633
MLS Number	13880143
Category	Mechanic / Utility / Service Trucks
Last Updated	1/7/2026
Location	Elkton, MD, US
Sold By	Complete Recycling Group LLC

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Featured Item

2013 Ford F-350 XL Mechanic / Service Truck, 4x4, XL, Work, Construction, Handyman, Plumber, 8FT KNAPHEIDE BED, CREW CAB, Smart Hitch, Gas

$28,888 USD

2013 Ford F350 SRW XL Utility Truck Stock: B53361, VIN:1FDRF3B69DEB53361, Year: 2013, Make: Ford, Model: F350XL, Engine:6.2L V-8 variable valve control, regular unleaded, engine with...

Condition	Used
Usage	102,213 Miles
Duty Class	Light Duty Service Truck
Bed Length	8 ft.
Horse Power	316 HP
Engine Model	Ford
Drivetrain	4x4
Transmission	6 Speed Automatic
Rear Axle	Single Axle
Rear End	6,920 lb 3.73 ratio
Stock Number	B53361
MLS Number	13139993
Category	Mechanic / Utility / Service Trucks
Last Updated	1/7/2026
Location	Elkton, MD, US
Sold By	Complete Recycling Group LLC

(833) 801-___ SHOW
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2012 International DuraStar 4400 Mechanic / Service Truck - 230HP, 6 Speed Manual

Newly Listed

$22,000 USD

GOOD TRUCK, RUNS EXCELLENT, IMT 9500 CRANE, ENPAK WELDER/ GENERATOR/ HYDRAULIC COMBO, 13 FT IMT BED!,

Condition	Used
Usage	215,438 Miles
Duty Class	Medium Duty Service Truck
Horse Power	230 HP
Drivetrain	4x2
Transmission	6 Speed Manual
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	19,000 lb
Stock Number	124400215SER
MLS Number	14075065
Category	Mechanic / Utility / Service Trucks
Last Updated	1/7/2026
Location	Covington, TN, US
Sold By	Don Baskin Truck Sales

(844) 305-___ SHOW
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2019 Kenworth T370 Mechanic / Service Truck - Paccar, 300HP, 6 Speed Automatic

Newly Listed

$129,900 USD

PX7 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 Brake, 11' Stellar Body, Steel...

Condition	Used
Usage	213,761 Miles
Duty Class	Heavy Duty Service Truck
Bed Length	11 ft.
Horse Power	300 HP
Engine Model	Paccar PX7
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb 5.57 ratio
Stock Number	KM259379
MLS Number	14074951
Category	Mechanic / Utility / Service Trucks
Last Updated	1/7/2026
Location	Chatham, VA, US
Sold By	J&J Truck Sales

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

Recently Updated

$79,500 USD

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	1/7/2026
Location	Aberdeen, ID, US
Sold By	Diesel Depot

(855) 804-___ SHOW
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2019 Kenworth T370 Mechanic / Service Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

Newly Listed

$129,900 USD

2019 Kenworth T370 --- 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 Brake, 11'...

Condition	Used
Usage	213,761 Miles
Duty Class	Heavy Duty Service Truck
Horse Power	300 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb 5.57 ratio
Stock Number	259379
MLS Number	14072165
Category	Mechanic / Utility / Service Trucks
Last Updated	1/6/2026
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

(844) 435-___ SHOW
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2018 International WorkStar 7300 Tandem Axle Mechanic / Service Truck - Cummins, 260HP

Price Drop $69,495 USD

Versalift Model VO355XMHI-01 55' Over Center Mounted Single, Man Bucket Crane With Utility Body

Condition	Used
Usage	14,610 Miles
Duty Class	Heavy Duty Service Truck
Horse Power	260 HP
Transmission	6 Speed
Suspension	Spring
Rear Axle	Tandem Axle
Rear End	21,000 lb 5.29 ratio
Stock Number	339356
MLS Number	13129779
Category	Mechanic / Utility / Service Trucks
Last Updated	1/6/2026
Location	Barrington, NH, US
Sold By	Allegiance Trucks

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2020 Chevrolet Silverado 4500HD Mechanic / Service Truck - 6 Speed Automatic

Newly Listed

$56,850 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	1/3/2026
Location	Greensboro, NC, US
Sold By	Impex Heavy Metal

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

Price Drop $74,900 USD

Ready to work service truck!, QT Equip 13FT 6 Body, 2015IMT 8600-22 3 Section Crane, Miller EnPack, 60 CFM AC,

Condition	Used
Usage	248,650 Miles
Duty Class	Medium Duty Service Truck
Horse Power	240 HP
Engine Model	Cummins B6.7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Rear Axle	Single Axle
Rear End	17,500 lb 5.88 ratio
Stock Number	279826
MLS Number	13900038
Category	Mechanic / Utility / Service Trucks
Last Updated	1/3/2026
Location	Smithfield, PA, US
Sold By	Hunter Truck

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

Price Drop $74,900 USD

11' Service Body, Miller ENPAK Rotary Screw Air Compressor, IMT 8600-22 Crane with Remote, Very nice used unit, Serviced and DOT'D,

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	1/3/2026
Location	Smithfield, PA, US
Sold By	Hunter Truck

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

Price Drop $89,900 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	1/3/2026
Location	Smithfield, PA, US
Sold By	Hunter Truck

(954) 523-___ SHOW
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2025 Kenworth T380 Mechanic / Service Truck - Paccar, 325HP, 6 Speed Allison Rds Automatic

Recently Updated

$239,095 USD

***Get 5.99% APR on select New 2025 older models through 1/31/26*** 5.99% APR available on select commercial trucks through participating lender. Not all buyers will qualify; credit...

Condition	New
Usage	1,510 Miles
Duty Class	Heavy Duty Service Truck
Bed Length	14 ft.
Horse Power	325 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	21,000 lb 6.17 ratio
Stock Number	KN180809
MLS Number	13703382
Category	Mechanic / Utility / Service Trucks
Last Updated	1/4/2026
Location	Fort Lauderdale, FL, US
Sold By	All Roads Trucks

(855) 984-___ SHOW
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2025 Kenworth T380 Mechanic / Service Truck - Paccar, 325HP, 6 Speed Allison Rds Automatic

Recently Updated

$239,095 USD

***Get 5.99% APR on select New 2025 older models through 1/31/26*** 5.99% APR available on select commercial trucks through participating lender. Not all buyers will qualify; credit...

Condition	New
Usage	960 Miles
Duty Class	Heavy Duty Service Truck
Bed Length	14 ft.
Horse Power	325 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	21,000 lb 6.17 ratio
Stock Number	KN180808
MLS Number	13703381
Category	Mechanic / Utility / Service Trucks
Last Updated	1/4/2026
Location	Westminster, MD, US
Sold By	All Roads Trucks

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2025 Kenworth T380 Mechanic / Service Truck - Paccar, 325HP, 6 Speed Allison Rds Automatic

Recently Updated

$239,095 USD

***Get 5.99% APR on select New 2025 older models through 1/31/26*** 5.99% APR available on select commercial trucks through participating lender. Not all buyers will qualify; credit...

Condition	New
Usage	1,075 Miles
Duty Class	Heavy Duty Service Truck
Bed Length	14 ft.
Horse Power	325 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	21,000 lb 6.17 ratio
Stock Number	KN180807
MLS Number	13703376
Category	Mechanic / Utility / Service Trucks
Last Updated	1/4/2026
Location	Rosedale, MD, US
Sold By	All Roads Trucks

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2023 International CV Mechanic / Service Truck - 350HP

Recently Updated

$84,900 USD

PUT THIS TO WORK TOMORROW!,

Condition	New
Usage	997 Miles
Duty Class	Medium Duty Service Truck
Horse Power	350 HP
Transmission	6 Speed
Suspension	Spring
Rear Axle	Single Axle
Rear End	15,500 lb 4.10 ratio
Stock Number	331509
MLS Number	12867243
Category	Mechanic / Utility / Service Trucks
Last Updated	1/3/2026
Location	Manchester, NH, US
Sold By	Allegiance Trucks

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2023 International CV Mechanic / Service Truck - 350HP

Recently Updated

$84,900 USD

4X2 DIESEL WITH 22,940# GVWR AND 9' SERVICE BODY READY TO GO!,

Condition	New
Usage	984 Miles
Duty Class	Medium Duty Service Truck
Horse Power	350 HP
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	15,500 lb 4.10 ratio
Stock Number	331414
MLS Number	12591227
Category	Mechanic / Utility / Service Trucks
Last Updated	1/3/2026
Location	Manchester, NH, US
Sold By	Allegiance Trucks

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2019 Ford F-350 XL Mechanic / Service Truck - 6.2L FLEX FUEL V8, 6 Speed Automatic

Recently Updated

$28,750 USD

2019 Ford F-350 SD XL Service Truck Quick Highlights:, , Engine: 6.2L V8 EFI SOHC 16V FLEX FUEL – Powerful and reliable for heavy-duty jobs , Transmission: Automatic – Smooth and efficient...

Condition	Used
Usage	113,078 Miles
Duty Class	Light Duty Service Truck
Bed Length	9 ft.
Engine Model	Ford 6.2L FLEX FUEL V8
Drivetrain	4x2
Transmission	6 Speed Automatic
Stock Number	4FT6912
MLS Number	13995999
Category	Mechanic / Utility / Service Trucks
Last Updated	1/2/2026
Location	Greensboro, NC, US
Sold By	Impex Heavy Metal

(866) 751-___ SHOW
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2007 Kenworth T300 Mechanic / Service Truck - Caterpillar, 330HP

Newly Listed

$34,500 USD

Affordable service truck. It was recently taken out of service and replaced with a new truck. Complete with remote for the crane. NO WELDER. Call for more information

Condition	Used
Usage	225,309 Miles
Duty Class	Medium Duty Service Truck
Horse Power	330 HP
Transmission	6 Speed
Rear End	21,000 lb 4.10 ratio
Stock Number	111022
MLS Number	14068090
Category	Mechanic / Utility / Service Trucks
Last Updated	1/1/2026
Location	Louisville, KY, US
Sold By	Boyd Truck Centers

2020 Peterbilt 567 Mechanic / Service Truck - Cummins, 300HP, 6 Speed Allison Rds Automatic

Newly Listed

$94,900 USD

Ready to work mechanic's truck!, DOT'd PM'd, Freshly detailed!, Cummins power and Allison Transmission!!,

Condition	Used
Usage	8,181 Hours
Duty Class	Heavy 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	1/1/2026
Location	Smithfield, PA, US
Sold By	Hunter Truck

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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...

Condition	New
Horse Power	300 HP
Engine Model	Paccar PX7 D
Drivetrain	4x2
Transmission	6 Speed
Suspension	Neway
Rear End	21,000 lb
Stock Number	TM789048
MLS Number	13976910
Category	Mechanic / Utility / Service Trucks
Last Updated	12/31/2025
Location	Poulsbo, WA, US
Sold By	Custom Truck One Source

(844) 476-___ SHOW
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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...

Condition	New
Horse Power	300 HP
Engine Model	Paccar PX7 D
Drivetrain	4x2
Transmission	6 Speed
Suspension	Neway
Rear End	21,000 lb
Stock Number	TM789049
MLS Number	14063989
Category	Mechanic / Utility / Service Trucks
Last Updated	12/30/2025
Location	Kansas City, MO, US
Sold By	Custom Truck One Source

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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...

Condition	New
Horse Power	300 HP
Engine Model	Paccar PX7 D
Drivetrain	4x2
Transmission	6 Speed
Suspension	Neway
Rear End	21,000 lb
Stock Number	TM789043
MLS Number	14063983
Category	Mechanic / Utility / Service Trucks
Last Updated	12/30/2025
Location	Kansas City, MO, US
Sold By	Custom Truck One Source