UnitedBuilt 6V4000 Water Tank Kit | 4000 Gallon VisionTank™ U-Kit — UnitedBuilt Equipment Skip to content
Limited Time: Free Freight on Orders $1,000+ — May 1–May 31 | Lower 48 States
Limited Time: Free Freight on Orders $1,000+ — May 1–May 31 | Lower 48 States

The UnitedBuilt 6V4000 VisionTank™ U-Kit is an unassembled 4,000 gallon water truck tank kit built for upfitters, fabricators, fleet shops, and end users who want a UnitedBuilt water tank system for installation on a compatible truck chassis. The U-Kit ships with the tank, pump, plumbing, couplings, spray valves, controls, and related water truck components packed loose for fabrication and installation by the installer.

This 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 U-Kit is a strong option for chassis conversions, water truck upfits, tank replacements, and fleet rebuilds. The kit includes a UnitedBuilt M3ZRMS cast iron 4x3 mechanical seal water pump, AV1100 spray valves, BC2399 adjustable fan spray nozzles, BC2179 side nozzles, Schedule 40 black pipe with grooved couplings and fittings, and a cab-mounted control console for independent spray valve operation.

UnitedBuilt stocks tank bodies in bare steel to give customers more flexibility and faster turnaround. Customers can choose the finish that best fits their build, including sandblast and primer, fleet white powder coat with zinc base coat, custom paint or powder coat color, and optional interior epoxy lining. This approach gives upfitters and fleet shops more control over the final finish while supporting a typical turnaround of approximately 30 days ARO.

The standard drive configuration uses a Muncie Power Take-Off (PTO) with a PTO driveshaft to the water pump. Depending on the transmission model, the PTO may be configured as a hot shift or air shift setup. For customers who prefer a hydraulic drive package, an optional direct-mount Muncie hydraulic gear pump and motor configuration is available with a truck frame-mounted hydraulic reservoir and required fittings kit.

Key Features

Feature Details
6V4000 VisionTank™ U-Kit Unassembled 4,000 gallon UnitedBuilt water truck tank kit
6V-15 Tank Platform 15' VisionTank™ with 4,000 gallon capacity
Ships Packed / Loose Pump, spray components, plumbing, controls, and related parts ship packed for installer assembly
Upfitter-Ready Package Built for fabrication and installation by an upfitter, fabricator, fleet shop, or qualified end user
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
UnitedBuilt M3ZRMS Pump Cast iron 4x3 water pump with ceramic mechanical seal
Muncie Power Take-Off (PTO) PTO configured for the transmission and water pump drive requirements
Standard PTO Driveshaft Drive Standard setup uses PTO driveshaft power transfer to the water pump
Optional Hydraulic Drive Package Direct-mount Muncie hydraulic gear pump and motor setup available
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 air operation of each spray valve
Bare Steel Tank Body Stocked bare for finish flexibility and faster turnaround
Finish Options Sandblast and primer, fleet white powder coat, custom color, or epoxy lined interior
Approx. 30 Days ARO Designed for faster turnaround after receipt of order

Specifications

Attribute Details
Brand UnitedBuilt
Model 6V4000
Tank Model 6V15 / 6V-15
Kit Type U-Kit
Product Type Water Truck Tank Kit
Assembly Style Unassembled 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
Standard Tank Body Finish Bare steel
Optional Exterior Finish Sandblast and prime
Optional Powder Coat Finish Fleet white powder coat with zinc base coat
Optional Custom Finish Paint or powder coat custom color
Standard Interior Finish Bare steel
Optional Interior Finish Sandblast and epoxy line interior
Water Pump UnitedBuilt M3ZRMS cast iron 4x3 ceramic mechanical seal pump
Standard Pump Drive Muncie PTO with driveshaft to water pump
PTO Brand Muncie Power Take-Off
PTO Shift Configuration Hot shift or air shift, depending on transmission model
Optional Hydraulic Drive Direct-mount Muncie hydraulic gear pump and motor configuration
Optional Hydraulic Components Truck frame-mounted hydraulic reservoir and required fittings kit
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 and water pump rotation
Typical Turnaround Approximately 30 days ARO

Kit Configuration

Component Group Details
Tank UnitedBuilt 6V-15 VisionTank™, 4,000 gallon capacity
Pump UnitedBuilt M3ZRMS cast iron 4x3 ceramic mechanical seal water pump, ships packed
PTO Drive Standard Muncie PTO driveshaft configuration, configured by transmission model
Optional Hydraulic Drive Direct-mount Muncie hydraulic gear pump and motor package with frame-mounted reservoir and fittings kit
Front Spray 2 AV1100 valves with BC2399 adjustable fan spray pattern nozzles, ships packed
Side Spray 2 AV1100 valves with BC2179 side nozzles on 90° elbows, ships packed
Rear Spray 2 AV1100 valves with BC2399 adjustable fan spray pattern nozzles, ships packed
Plumbing Schedule 40 black pipe with grooved couplings and fittings, ships packed
Controls Cab-mounted control console for independently air operating each spray valve, ships packed
Standard Tank Body Bare steel tank body for finish flexibility
Exterior Finish Options Sandblast and prime, fleet white powder coat with zinc base coat, or custom paint / powder coat
Interior Finish Options Bare steel interior or optional sandblast and epoxy lining

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
Tank Replacement Projects Replace an aging or damaged water truck tank system
Fleet Refurbishment Rebuild existing water trucks with a new 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
Custom Color Builds Match fleet colors, branding, or chassis paint requirements
Fast-Turnaround Builds Use stocked bare tank bodies to reduce lead time on compatible projects

Important U-Kit Note

The U-Kit is not a fully assembled water truck body. It is an unassembled water truck tank kit intended for fabrication and installation by a qualified upfitter, fabricator, fleet shop, or end user. Components ship packed / loose for installation, and final installation requirements depend on the chassis, frame layout, wheelbase, transmission, PTO configuration, pump rotation, plumbing layout, finish selection, and selected options.

UnitedBuilt water truck tank kits are built for customers who need dependable equipment, practical serviceability, and long-term value. From tank construction and spray system layout to pump selection, PTO drive configuration, plumbing, controls, parts support, and serviceability, UnitedBuilt tank systems are designed to help keep water moving and crews productive.

A water truck’s real value shows up in the field — in uptime, spray performance, serviceability, and the support behind it. UnitedBuilt tank kits give qualified installers and fleet shops access to the same water truck components and build knowledge used in UnitedBuilt complete water truck packages.

UnitedBuilt supports customers with water truck sales expertise, replacement parts, technical guidance, and mobile service support in Arizona.

Available options may include:

  • Sandblast and prime exterior
  • Fleet white powder coat with zinc base coat
  • Custom paint or powder coat color
  • Interior sandblast and epoxy lining
  • Elkhart water cannon, available in electric or manual configurations
  • 50' to 100' hose reel options
  • Self-loading suction fill
  • Gravity bar or pressure bar options
  • Articulated spray heads
  • Additional spray heads
  • Flusher spray heads
  • Stainless steel plumbing options
  • Muncie hot shift or air shift PTO configuration, depending on transmission model
  • Direct-mount Muncie hydraulic gear pump and motor package
  • Truck frame-mounted hydraulic reservoir and required fittings kit
  • Lighting, cameras, and other chassis-mounted accessories by build