Correct — that changes the positioning materially. The bare steel / finish-flexibility language belongs on U-Kits, not R-Kits.
For R-Kits, the stronger customer-facing message is:
- Ready-to-ship / ready-to-install drop-on configuration
- Exterior already powder coated fleet white
- Zinc base layer for corrosion resistance
- Interior already epoxy lined
- More complete package than U-Kit
- Faster path to installation for upfitters and fleet shops
Below is the corrected full listing.
Product Title
UnitedBuilt 6V4000 VisionTank™ 4000 Gallon Drop-On Water Tank Kit, R-Kit
Product Handle
unitedbuilt-6v4000-visiontank-4000-gallon-drop-on-water-tank-kit-r-kit
Product Description
The UnitedBuilt 6V4000 VisionTank™ R-Kit is a 4,000 gallon drop-on water tank kit built for upfitters, fabricators, fleet shops, and end users who want a more complete tank package for installation on a compatible truck chassis. Unlike a U-Kit, which ships with loose components for fabrication, the R-Kit is designed as a ready-to-install drop-on tank system with more of the pump, plumbing, valve, and hydraulic drive work already completed.
This R-Kit is based on the UnitedBuilt 6V-15 VisionTank™ platform with a 4,000 gallon capacity, 15' tank length, and 6V modified trapezoid VisionTank™ profile. The tank features two curved and fitted 3/16" baffles, curved and fitted 3/16" heads, a full-length reinforced belly plate, and UnitedBuilt’s VisionTank™ design for water truck applications.
The 6V4000 R-Kit includes a UnitedBuilt M3ZRMS cast iron 4x3 mechanical seal water pump with a Muncie PK Series hydraulic motor preinstalled and plumbed on the pump. The hydraulic drive package is configured with a Muncie Power Take-Off (PTO), hydraulic gear pump, truck frame-mounted hydraulic reservoir, and required fittings kit. This setup is designed for customers who want a hydraulic pump drive configuration instead of the standard PTO driveshaft-to-water-pump layout.
R-Kit configurations are stocked as ready-to-ship tank packages with the exterior already powder coated fleet white with a zinc base layer and the interior already epoxy lined. This gives upfitters and fleet shops a faster path to installation while still delivering UnitedBuilt’s durable VisionTank™ construction, spray system layout, hydraulic drive package, and water truck component support.
Key Features
| Feature |
Details |
| 6V4000 VisionTank™ R-Kit |
4,000 gallon UnitedBuilt drop-on water truck tank kit |
| 6V-15 Tank Platform |
15' VisionTank™ with 4,000 gallon capacity |
| Ready-to-Ship Configuration |
Stocked as a finished R-Kit tank package |
| Drop-On Tank Package |
More preassembled than a U-Kit for faster upfitter installation |
| Fleet White Powder Coat |
Exterior powder coated fleet white |
| Zinc Base Layer |
Added corrosion resistance under the exterior powder coat |
| Epoxy Lined Interior |
Interior tank lining included for extended tank life |
| Hydraulic Drive Configuration |
Designed around a Muncie PTO-driven hydraulic system |
| Muncie PK Series Hydraulic Motor |
Preinstalled and plumbed on the UnitedBuilt M3ZRMS water pump |
| Muncie Power Take-Off (PTO) |
PTO package configured for hydraulic drive operation |
| Frame-Mounted Hydraulic Reservoir |
Hydraulic reservoir included for truck frame mounting |
| UnitedBuilt M3ZRMS Pump |
Cast iron 4x3 water pump with mechanical seal |
| Modified Trapezoid VisionTank™ |
Six-sided 6V tank profile for UnitedBuilt water truck applications |
| 3/16" ASTM A36 Tank Construction |
Steel shell, curved baffles, and curved heads for durable tank construction |
| Full-Length Belly Plate |
Reinforced belly plate construction for water truck service |
| Six Spray Valve Setup |
Components for 6 independently controlled UnitedBuilt AV1100 spray valves |
| Schedule 40 Pipe Plumbing |
Black pipe plumbing with grooved couplings and fittings, not hose plumbing |
| Cab Control Console |
Cab-mounted console for independent spray valve operation |
Specifications
| Attribute |
Details |
| Brand |
UnitedBuilt |
| Model |
6V4000 |
| Tank Model |
6V15 / 6V-15 |
| Kit Type |
R-Kit |
| Product Type |
Drop-On Water Tank Kit |
| Assembly Style |
Drop-on tank kit |
| Tank Series |
VisionTank™ |
| Tank Capacity |
4,000 gallons |
| Tank Length |
15' |
| Tank Profile |
6V |
| Tank Shape |
Modified trapezoid VisionTank™ profile |
| Baffles |
2 curved, fitted 3/16" baffles, welded all sides 100% |
| Heads |
2 curved, fitted 3/16" heads, welded all sides 100% |
| Belly Plate |
Full-length reinforced belly plate |
| Exterior Finish |
Fleet white powder coat |
| Exterior Base Layer |
Zinc base layer |
| Interior Finish |
Epoxy lined |
| Water Pump |
UnitedBuilt M3ZRMS cast iron 4x3 mechanical seal pump |
| Pump Drive Type |
Hydraulic drive |
| Hydraulic Motor |
Muncie PK Series hydraulic motor, preinstalled and plumbed on water pump |
| PTO Brand |
Muncie Power Take-Off |
| Hydraulic Pump |
Muncie hydraulic gear pump |
| Hydraulic Reservoir |
Truck frame-mounted hydraulic reservoir |
| Hydraulic Kit |
Required hydraulic fittings kit included |
| Plumbing |
Schedule 40 black pipe with grooved couplings and fittings |
| Plumbing Style |
Pipe plumbing, not hose plumbing |
| Control Console |
Cab-mounted console for independent spray valve control |
| Chassis |
Not included |
| Installation |
Not included unless separately quoted |
| Transmission Info |
Transmission make and model required to determine PTO configuration |
| Availability |
Stocked ready to ship, subject to current inventory |
Kit Configuration
| Component Group |
Details |
| Tank |
UnitedBuilt 6V-15 VisionTank™, 4,000 gallon capacity |
| Exterior Finish |
Fleet white powder coat with zinc base layer |
| Interior Finish |
Epoxy lined interior |
| Pump |
UnitedBuilt M3ZRMS cast iron 4x3 mechanical seal water pump |
| Hydraulic Motor |
Muncie PK Series hydraulic motor preinstalled and plumbed on water pump |
| PTO Drive |
Muncie PTO configured for hydraulic drive operation |
| Hydraulic Pump |
Muncie hydraulic gear pump |
| Hydraulic Reservoir |
Truck frame-mounted hydraulic reservoir |
| Hydraulic Fittings |
Required fittings kit for hydraulic drive configuration |
| Front Spray |
2 AV1100 valves with BC2399 adjustable fan spray pattern nozzles |
| Side Spray |
2 AV1100 valves with BC2179 side nozzles on 90° elbows |
| Rear Spray |
2 AV1100 valves with BC2399 adjustable fan spray pattern nozzles |
| Plumbing |
Schedule 40 black pipe with grooved couplings and fittings |
| Controls |
Cab-mounted control console for independently air operating each spray valve |
Applications
| Application |
Use Case |
| Water Truck Upfits |
Build a water truck on a compatible customer-supplied chassis |
| Chassis Conversions |
Convert a compatible truck chassis into a water truck |
| Drop-On Tank Installations |
Install a more complete tank package with hydraulic drive configuration |
| Tank Replacement Projects |
Replace an aging or damaged water truck tank system |
| Fleet Refurbishment |
Rebuild existing water trucks with a finished tank and spray system package |
| Dust Control Trucks |
Build water delivery systems for construction and haul road dust suppression |
| Construction Water Trucks |
Support compaction, grading, jobsite watering, and equipment washdown |
| Mining Support Trucks |
Provide water delivery for mine roads, dust control, and site operations |
| Municipal Water Trucks |
Support public works, road maintenance, and site watering applications |
| Fast-Turnaround Builds |
Use stocked ready-to-ship R-Kits to reduce upfit lead time |
Important R-Kit Note
The R-Kit is a drop-on water tank kit, not a complete water truck. It is designed for installation on a compatible truck chassis by a qualified upfitter, fabricator, fleet shop, or end user. Final installation requirements depend on the chassis, frame layout, wheelbase, transmission, PTO configuration, hydraulic layout, plumbing layout, and selected options.
