Jet/Vac Combo & Hydro Excavating Trucks
Full-size combo trucks, hydro excavators and trailers your crew can pull with a pickup. Three lines from one dealer, so we recommend what fits your work and budget.
Three lines. One dealer.
Whether you need a full-size combo truck, a hydro excavator or a trailer, we carry three lines so we can recommend what fits, not just whatever one brand makes.
GapVax
The highest-end industrial vacuum and jetter trucks on the market, built in-house for quality.
- MC Series combo sewer cleaners + non-CDL MC Lite
- VHE & VHX hydro excavators
- GJET jetter trucks & G7 trailer jetters
Harben
Value and competitive pricing. Harben builds trailers, skids, trucks and custom units.
- Trailer jetters
- Van pack jetters
- Truck-mounted jetters
Dyna-Vac
Big capability without the cost of a full-size truck.
- Vac & hydro-ex trailers
- Jet-vac combo trailers & box-truck jetters
- Rhino easement machine & Dyna-Lite grease trap pumper
Size the machine to the work
Full-size truck, trailer or van pack: we’ll walk through your footage, pipe sizes and crew size to help you decide.
Combo truck or hydro excavator
- The unit runs every day
- Large mains and deep excavations
- Industrial cleanup
Vac, hydro-ex or jet-vac trailer
- Costs much less than a truck
- Pulled by a truck you already own
- Handles most city maintenance, potholing and locate work
Harben van pack jetter
- Jetter, reel and water built into a cargo van
- No trailer to tow or park
- Ready for line jetting and service calls
More than a sale
- Built for the job. We help you size the right unit for your jobs and your crews.
- Public agency pricing. GapVax, Harben and Dyna-Vac are all on the Minnesota State Contract, and GapVax is also a Sourcewell awarded contract, for eligible cities, counties and schools.
- Demos and training. See it run before you buy, and get your crew trained at delivery.
- Parts, service and trade-ins. Support after the sale, plus trade-ins on your current unit.
What we sell, and where
Common questions
What’s the difference between a jet/vac combo truck and a hydro excavator?
A combo truck jets and vacuums sewer and storm lines, catch basins and lift stations. A hydro excavator digs with pressurized water and vacuum so crews can expose buried utilities without hitting them.
Should we buy a truck or a trailer?
A full-size truck makes sense when the unit runs every day on large mains, deep excavations or industrial cleanup. A trailer costs much less, can be pulled by a truck you already own, and handles most city maintenance, potholing and locate work.
Can our city buy on contract?
Yes. GapVax is on Sourcewell, and GapVax, Harben and Dyna-Vac are all on the Minnesota State Contract. Call us and we’ll walk you through it.
Do you take trade-ins?
Yes. Send us the year, make, model and hours of your current unit.
Talk to us about your next unit
Tell us the work and we’ll match you with the right machine.
Ways to pay for it
Combo trucks, vac trailers and jetters keep sewers and storm drains clean, so cities can tap clean water and small-town funding.
USDA Community Facilities
Towns under 20,000 can get a 15% to 75% grant plus loans up to 40 years. USDA lists "public works vehicles or equipment" as eligible. Open all year.
Program details →SRFLow-rate loansClean Water SRF
EPA lists street sweepers and vacuum trucks as eligible stormwater sediment controls. Each state runs its own program; pick yours below.
Program details →DERA25%–45% of a truckEPA diesel replacement
Replacing an old diesel truck or machine? Cities and counties can apply for EPA DERA grants. National deadline Jan 22, 2027.
Program details →100%Write-offBonus depreciation
Contractors can write off 100% of new equipment the year it goes into service; Section 179 covers up to $2.5M. Ask your accountant.
Program details →What counts as eligible equipment varies by state; confirm with the agency before you buy. Programs checked November 2026. Jet Line is not a tax advisor.
Shop the rest of the Jet Line lineup
Our Coverage Area
Select a product to see the states we cover. Offices in Kensington, MN and Salt Lake City, UT.