Detachable Towing Units
Convert your bobtail semi-tractor into a tow truck with a Detachable Towing Unit (DTU) from Zip’s AW Direct. The Holmes Generation 2 Series DTU from Miller Industries hooks to your truck with a kingpin for the fifth-wheel plate and a lock-down bracket at the front. Drop-down legs allow the unit to be removed in a matter of minutes. We also carry Zacklift DTUs for your consideration. Both provide great flexibility and versatility for your towing operation or fleet recovery needs.
Showing 9 items
Available Detachable Towing Units
Zacklift Z453 Fifth Wheeler Detachable Towing Unit
Zacklift Z353 Fifth Wheeler Detachable Towing Unit
Zacklift Z252 Fifth Wheeler Detachable Towing Unit
Shop by Category
Detachable Towing Units for Sale
Looking to expand your fleet’s capabilities without investing in a full heavy-duty wrecker? Zip’s AW Direct offers detachable towing units for sale from top brands like Zacklift and Holmes. These units convert standard trucks into powerful recovery and towing solutions with detachable underlift systems engineered for strength, flexibility and ease of use. Ideal for fleet operators, roadside recovery teams and commercial haulers, detachable towing units give you the freedom to tow heavy loads without permanent equipment mounted to your chassis.
Compatible With Class 7 & 8 Trucks
Our inventory includes detachable towing units designed for Class 7 and Class 8 chassis, giving you flexibility to transform your truck into a heavy-duty towing machine. Whether you’re using a Kenworth, Peterbilt, International or Freightliner platform, these bolt-on or frame-mounted solutions are built for compatibility and quick installation. We carry popular options like the Zacklift Z403 and Holmes DTU systems, both offering high lift capacity, adjustable boom extensions and remote control operation.
Use Cases for Detachable Towing Units
Detachable towing units are ideal for:
- Supplemental Heavy-Duty Recovery: Add towing capacity to a service truck without dedicating a full-time wrecker.
- Fleet Flexibility: Move detachable units between trucks as needed based on workload.
- Municipal Use: Great for cities or utilities needing emergency towing on demand.
- Contract Towing: Perfect for rotating recovery contracts where a full-time wrecker may not be cost effective.
- Storage Optimization: Units can be removed and stored when not in use, reducing wear and freeing up the chassis for other uses.
From towing semi-trucks to recovering buses and RVs, these detachable underlift systems perform with the strength and stability professionals demand.
Trusted Brands: Zacklift & Holmes
Zip’s carries the most trusted names in detachable towing—Zacklift and Holmes. Zacklift detachable units like the Z403 offer a proven, self-contained design with hydraulic lifting power and tilt adjustment, while Holmes DTU systems provide quick installation and durable steel construction for consistent heavy-duty use. Both systems are engineered for low-profile storage and offer features like remote control operation, integrated hydraulic pumps, and frame-mounted receivers.
New & Used Detachable Towing Units Available
We stock both new and used detachable towing units, thoroughly inspected by our recovery equipment specialists. Used Holmes DTU and Zacklift systems offer great value while retaining long service life. If you’re working with a budget or want to test the benefits of detachable towing before committing to a new build, pre-owned options provide a smart entry point. Whether you're outfitting a single rig or scaling up a recovery operation, we’ve got a solution in stock.
In-House Financing and Leasing Options
Need to finance your detachable towing unit? Zip’s offers in-house financing and leasing options to help you make the most of your equipment investment. We offer competitive terms, quick approvals and flexible plans for both new and used units. Our team can walk you through the process of choosing between leasing vs. financing a Zacklift or Holmes unit, and help you find a plan that aligns with your budget and fleet growth.
Talk to Our Sales Team About Detachable Underlifts
Not sure which detachable underlift is right for your application? Our expert sales team is here to help. With decades of experience in towing and recovery, we’ll guide you through chassis compatibility, lift specs and the best options for your operational needs. Browse our in-stock inventory online or give us a call to discuss current availability and lead times. Whether it’s a Zacklift Z403, a Holmes DTU or a custom fit, we’ve got the right detachable towing unit for you.



