Diesel 6 Speed Mechanic / Utility / Service Trucks with 3.50-0.00 Ratio For Sale

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Featured Item

14 0

2017 Ford F-550 XL Crew Cab Mechanic / Service Truck - Knapheide Service Utility Truck Body

$100,000 USD

2017 F550 Ford Super Duty custom-built puller and custom built Knapheide step down service body. Goose neck and fifth wheel hitch Only 16,500 miles Like new, excellent condition Call for...

Condition	Used
Usage	16,000 Miles
Duty Class	Medium Duty Service Truck
Upfit Type	Service Utility Truck Body
Upfit Make	Knapheide
Upfit Model	Custom
Bed Length	12 ft.
Horse Power	440 HP
Engine Model	Ford 6.7L Power Stroke
Drivetrain	4x2
Transmission	6 Speed Automatic
Rear Axle	Single Axle
Rear End	3.70 ratio
Door Type	Swing
MLS Number	13559342
Category	Mechanic / Utility / Service Trucks
Last Updated	7/7/2025
Location	Greenville, CA, US
Sold By	Vernon Roberts

(833) 658-___ SHOW
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Featured Item

75 1

2011 Dodge RAM 5500 4WD Mechanic / Service Truck, Plumber, Work, Construction, Handyman, Electrician, Box Truck, Diesel Delivery, Work, 9FT Bed

$19,999 USD

2011 Dodge Ram 5500HD Utility Stock: 507634 VIN:3D6WU7EL6BG507634 Year:2011 Make: Ram Model: 5500HD Engine:Cummins 6.7L I-6 diesel direct injection, inter-cooled turbo, diesel, engine with...

Condition	Used
Usage	311,176 Miles
Duty Class	Medium Duty Service Truck
Bed Length	9 ft.
Horse Power	305 HP
Engine Model	Cummins
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	13,500 lb 4.88 ratio
Stock Number	507634
MLS Number	13438640
Category	Mechanic / Utility / Service Trucks
Last Updated	7/21/2025
Location	Elkton, MD, US
Sold By	Complete Recycling Group LLC

50 0

2019 Ford F-550 Mechanic / Service Truck - 6.7L POWER STROKE, 330HP, 6 Speed Automatic

Newly Listed

$119,500 USD

2019 Ford F-550 Extended Cab 4X4 Mechanics Truck, 6.7L Powerstroke Turbo Diesel, 330 HP, Exhaust Brake, 6 Speed Automatic Transmission, ONLY 99,876 Miles 3,349 Engine Hours, 19.5K GVWR (7K...

Condition	Used
Usage	3,349 Hours
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	14,706 lb 4.88 ratio
Stock Number	T17348D
MLS Number	13711783
Category	Mechanic / Utility / Service Trucks
Last Updated	7/22/2025
Location	Denver, CO, US
Sold By	DTI Trucks

(772) 409-___ SHOW
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16 0

2005 International DuraStar 4300 Mechanic / Service Truck - DT466, 225HP, 6 Speed Manual

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

$239,095 USD

Transfer this unit to your nearest South Florida location at no additional cost! Fort Lauderdale, Fort Pierce, Riviera Beach, or Naples. Contact us for details! Model Year: 2025, Model: T380...

Condition	New
Usage	1,389 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	7/23/2025
Location	Fort Pierce, FL, US
Sold By	All Roads Trucks

(855) 984-___ SHOW
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1 0

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

$239,095 USD

Transfer this unit to your nearest Maryland/Delaware location at no additional cost – Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro, or Westminster. Contact us for...

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	7/23/2025
Location	Westminster, MD, US
Sold By	All Roads Trucks

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1 0

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

$239,095 USD

Transfer this unit to your nearest Maryland/Delaware location at no additional cost – Baltimore, Bel Air, Dover, Landover, Mardela Springs, Upper Marlboro, or Westminster. Contact us for...

Condition	New
Usage	1,001 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	7/23/2025
Location	Rosedale, MD, US
Sold By	All Roads Trucks

(833) 970-___ SHOW
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14 0

2015 Peterbilt 337 Mechanic / Service Truck - Paccar, 300HP, 6 Speed Allison Rds Automatic

Price Drop

$59,900 USD

2015 Peterbilt 337 Service truck ***Cummins ***Allison*** 7500 IMT Crane 22' boom,

Condition	Used
Usage	6,456 Hours
Duty Class	Medium Duty Service Truck
Horse Power	300 HP
Engine Model	Paccar PX7
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Rear Axle	Single Axle
Rear End	5.57 ratio
Stock Number	277018
MLS Number	13379438
Category	Mechanic / Utility / Service Trucks
Last Updated	7/15/2025
Location	Lancaster, PA, US
Sold By	Hunter Truck

(844) 305-___ SHOW
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12 0

2018 International DuraStar 4300 Mechanic / Service Truck - Cummins, 260HP, 6 Speed Automatic

$69,900 USD

Single Axle, 10' Adkins Service Body, Effer Knuckle Boom Model 135/3S (8,075 Capacity), 6.7L Cummins 260 HP, Allison Automatic 6 Speed, 6.14 Ratio, Spring Suspension, 13K FA, 20K RA, 33K...

Condition	Used
Usage	3,449 Hours
Duty Class	Heavy Duty Service Truck
Bed Length	10 ft.
Horse Power	260 HP
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	20,000 lb 6.14 ratio
Stock Number	JL435450
MLS Number	13512266
Category	Mechanic / Utility / Service Trucks
Last Updated	7/12/2025
Location	Chatham, VA, US
Sold By	J&J Truck Sales

(844) 716-___ SHOW
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29 0

2019 Ford F-550 XL Mechanic / Service Truck - 6.7L POWER STROKE, 6 Speed Automatic

Call for price

2019 Ford F550 Supercab XL package 4x2 chassis #5245, , VIN #1FD0X5GT1KEC36716, , 6.7L- Power stroke V8 turbo diesel with dual alternators, , 6R140 6 speed Automatic overdrive transmission,...

Condition	Used
Usage	135,562 Miles
Duty Class	Medium Duty Service Truck
Engine Model	Ford 6.7L POWER STROKE
Drivetrain	4x2
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	14,706 lb 4.88 ratio
Stock Number	5245
MLS Number	13300603
Category	Mechanic / Utility / Service Trucks
Last Updated	7/12/2025
Location	Pacific, WA, US
Sold By	Puget Sound Truck Sales, Inc.

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2 0

2013 Freightliner M2 106 Mechanic / Service Truck - Cummins, 220HP, 6 Speed Manual

$35,900 USD

2013 Freightliner M2 --- Single Axle, ISB Cummins 220 HP, Eaton-Fuller Manual 6 Speed, 4.78 Ratio, 8,000 Front Axle, 17,500 Rear Axle, 155" Wheelbase, 12' 11" Bridge, Spring, Air Brake,...

Condition	Used
Usage	231,314 Miles
Duty Class	Medium Duty Service Truck
Horse Power	220 HP
Engine Model	Cummins ISB
Drivetrain	4x2
Transmission	6 Speed Manual
Suspension	Spring
Rear Axle	Single Axle
Rear End	17,500 lb 4.78 ratio
Stock Number	F89544
MLS Number	10708902
Category	Mechanic / Utility / Service Trucks
Last Updated	7/9/2025
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

44 0

2018 Ford F-550 Mechanic / Service Truck - Automatic

$79,500 USD

2018 Ford F-550 4X4 Mechanics / Lube Truck, 6.7L Powerstroke Turbo Diesel Engine, 330 HP, Exhaust Brake, 6 Speed Automatic Transmission, ONLY 102,247 Miles 3,950 Engine Hours, 19.5K GVWR (6...

Condition	Used
Usage	3,946 Hours
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	14,706 lb 4.88 ratio
Stock Number	T17278D
MLS Number	13650086
Category	Mechanic / Utility / Service Trucks
Last Updated	7/2/2025
Location	Denver, CO, US
Sold By	DTI Trucks

(844) 882-___ SHOW
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37 0

2019 Ford F-550 XL Mechanic / Service Truck - 6.7L POWER STROKE, 330HP, 6 Speed Automatic

$69,977 USD

2019 Ford F-550 XL SD 4x2 11' x 94" Single-Axle Service / Utility Mechanic's Truck, Ford Power-Stroke 6.7L @ 330 H.P., 6-Speed Automatic O/D Transmission, 4.10 Ratio, 169" W.B., Spring...

Condition	Used
Usage	127,587 Miles
Duty Class	Medium Duty Service Truck
Bed Length	11 ft.
Horse Power	330 HP
Engine Model	Ford 6.7L POWER STROKE
Drivetrain	4x2
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	14,706 lb 4.10 ratio
Stock Number	4219
MLS Number	13314584
Category	Mechanic / Utility / Service Trucks
Last Updated	7/2/2025
Location	Phoenix, AZ, US
Sold By	American Truck Sales & Salvage

52 0

2014 Freightliner M2 106 Mechanic / Service Truck - Cummins, 240HP, 6 Speed Allison Hs Automatic

$59,500 USD

2014 Freightliner M2-106 Lube Truck / Mechanics Truck, Cummins ISB 6.7L Diesel Engine, 240 HP, Exhaust Brake, Allison 6 Speed Automatic Transmission, 176,766 ECM Verified Miles 7,040 ECM...

Condition	Used
Usage	7,040 Hours
Duty Class	Medium Duty Service Truck
Horse Power	240 HP
Engine Model	Cummins ISB6.7
Drivetrain	4x2
Transmission	6 Speed Allison HS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	17,500 lb 6.14 ratio
Stock Number	T17300D
MLS Number	13673114
Category	Mechanic / Utility / Service Trucks
Last Updated	7/1/2025
Location	Denver, CO, US
Sold By	DTI Trucks

65 0

2026 Kenworth T380 Mechanic / Service Truck - Paccar, 350HP

Call for price

2026 Kenworth T380 Mechanics Truck, 8.9L Paccar PX-9 Diesel Engine, 350 HP, Engine Brake, Allison 6 Speed Automatic Transmission, ONLY 2,338 Miles 53.5 Engine Hours, 33K GVWR (12K Steer...

Condition	Used
Usage	53 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 4.88 ratio
Stock Number	T17124D
MLS Number	13612176
Category	Mechanic / Utility / Service Trucks
Last Updated	6/26/2025
Location	Denver, CO, US
Sold By	DTI Trucks

49 0

2013 Ford F-550 Mechanic / Service Truck - 6.7L POWER STROKE, 300HP, 6 Speed Automatic

$99,500 USD

2013 Ford F-550 Extended Cab Superduty 4x4 Mechanics Truck, 6.7L Powerstroke Turbo Diesel Engine, 300 HP, 6 Speed Automatic Transmission, ONLY 74,102 Miles 4,312 Engine Hours, 19,500 Lbs....

Condition	Used
Usage	4,312 Hours
Duty Class	Medium Duty Service Truck
Horse Power	300 HP
Engine Model	Ford 6.7L POWER STROKE
Drivetrain	4x4
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	14,706 lb 4.88 ratio
Stock Number	T17174D
MLS Number	13584639
Category	Mechanic / Utility / Service Trucks
Last Updated	6/26/2025
Location	Denver, CO, US
Sold By	DTI Trucks

46 0

2017 Ford F-750 Mechanic / Service Truck - 6.7L POWER STROKE, 330HP, 6 Speed Automatic

$124,500 USD

2017 Ford F-750 Mechanics Truck, 6.7L Powerstroke Turbo Diesel Engine, 330 HP, Exhaust Brake, 6 Speed Automatic Transmission, ONLY 8,856 Miles 3,520 Engine Hours, 33K GVWR (12K Steer Axle,...

Condition	Used
Usage	3,520 Hours
Duty Class	Medium Duty Service Truck
Horse Power	330 HP
Engine Model	Ford 6.7L POWER STROKE
Drivetrain	4x2
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	21,000 lb 4.56 ratio
Stock Number	T17071D
MLS Number	13534062
Category	Mechanic / Utility / Service Trucks
Last Updated	6/26/2025
Location	Denver, CO, US
Sold By	DTI Trucks

60 1

2025 Freightliner M2 106 Mechanic / Service Truck - Cummins, 350HP, 6 Speed Allison Rds Automatic

$209,000 USD

2025 Freightliner M2-106 Plus Single Axle Summit Mechanics Truck, Cummins L9 Turbo Diesel Engine, 350 HP, Engine Brake, Allison 3000 RDS 6 Speed Automatic Transmission, ONLY 2,489 Original...

Condition	Used
Usage	58 Hours
Duty Class	Medium Duty Service Truck
Horse Power	350 HP
Engine Model	Cummins L9
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	19,000 lb 5.22 ratio
Stock Number	T16712D
MLS Number	13451217
Category	Mechanic / Utility / Service Trucks
Last Updated	6/26/2025
Location	Denver, CO, US
Sold By	DTI Trucks

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76 0

2019 Ford F-550 Mechanic / Service Truck - 6.7L POWER STROKE, 330HP, 6 Speed Automatic

$89,995 USD

For Sale: 2019 Ford F-550 Super Duty Mechanic Truck with Crane – Auto Crane HC-6, Welder, and Air Compressor This 2019 Ford F-550 Super Duty is a fully equipped mechanic’s service truck,...

Condition	Used
Usage	7,484 Hours
Duty Class	Medium Duty Service Truck
Bed Length	11 ft.
Horse Power	330 HP
Engine Model	Ford 6.7L POWER STROKE
Drivetrain	4x2
Transmission	6 Speed Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	14,706 lb 4.88 ratio
Stock Number	F06324
MLS Number	13584300
Category	Mechanic / Utility / Service Trucks
Last Updated	6/21/2025
Location	Miami, FL, US
Sold By	Truck and Van Outlet

(855) 642-___ SHOW
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10 3

2025 Kenworth T480 Mechanic / Service Truck - Paccar, 350HP, 6 Speed Allison Rds Automatic

$289,950 USD

New Kenworth T480 Service Truck for sale. Features: Stellar TMAX3S-14' Aluminum mechanic body with Aluminum Doors, All Compartments raised to 60"H, Torsion Box understructure with isolated...

Condition	New
Duty Class	Heavy Duty Service Truck
Bed Length	14 ft.
Horse Power	350 HP
Engine Model	Paccar PX9
Drivetrain	4x4
Transmission	6 Speed Allison RDS Automatic
Suspension	Hendrickson
Rear Axle	Single Axle
Rear End	23,000 lb 5.25 ratio
Stock Number	179808
MLS Number	13498808
Category	Mechanic / Utility / Service Trucks
Last Updated	6/13/2025
Location	Coopersburg, PA, US
Sold By	Coopersburg & Liberty Kenworth

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23 0

2015 Kenworth T270 Mechanic / Service Truck - Paccar, 300HP, 6 Speed Manual

$119,900 USD

Single Axle, 11.5' Adkins Service Body, 10006H AutoCrane, Wireless Remote, Hydraulic Outriggers, EnPak System Powered by Kubota Diesel, (8) 26" Drawers, (6) 12" Drawers Driver Side, (8) 12"...

Condition	Used
Usage	7,888 Hours
Duty Class	Medium Duty Service Truck
Bed Length	11.5
Horse Power	300 HP
Engine Model	Paccar PX7
Transmission	6 Speed Manual
Suspension	Air Ride
Rear Axle	Single Axle
Rear End	16,000 lb 4.88 ratio
Stock Number	FM442480
MLS Number	13063309
Category	Mechanic / Utility / Service Trucks
Last Updated	5/30/2025
Location	Chatham, VA, US
Sold By	J&J Truck Sales

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6 0

2018 International DuraStar 4300 Mechanic / Service Truck - Cummins, 260HP, 6 Speed Allison Rds Automatic

$69,900 USD

2018 International 4300 --- Single Axle, ISB 6.7 Cummins 260 HP, Allison Automatic 6 Speed, 6.14 Ratio, 13,000 Front Axle, 20,000 Rear Axle, 174" Wheelbase, Axle Lock, Pintle Hitch, 10'...

Condition	Used
Usage	41,930 Miles
Duty Class	Heavy Duty Service Truck
Horse Power	260 HP
Engine Model	Cummins ISB
Drivetrain	4x2
Transmission	6 Speed Allison RDS Automatic
Suspension	Spring
Rear Axle	Single Axle
Rear End	20,000 lb 6.14 ratio
Stock Number	435450
MLS Number	13512381
Category	Mechanic / Utility / Service Trucks
Last Updated	5/17/2025
Location	Chatham, VA, US
Sold By	Atkinson Truck Sales

(844) 435-___ SHOW
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7 0

2023 International CV Mechanic / Service Truck - 350HP

$79,900 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
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	5/17/2025
Location	Bangor, ME, US
Sold By	Allegiance Trucks