UnitedBuilt 4,000 Gallon Water Truck Tank Drop-On Kit
(R-Kit) – 6V-15 Vision Tank
(3) In Production | Q1 2026
The UnitedBuilt 4,000 Gallon Water Truck Tank Drop-On Kit is
engineered for durability, performance, and easy installation. Designed and
built in the USA, this R-Kit is ready for integration onto your chassis with
minimal fabrication required.
Tank Construction
- Capacity: 4,000 gallons
- Exterior Finish: Powder-coated white with a zinc-rich primer
for superior corrosion resistance - Interior Lining: Industrial-grade epoxy coating to extend
tank service life - Mounting System: Heavy-duty 6-point mount with front springs
and vulcanized rubber wear pads (fabrication required)
Water Pump & Hydraulic System
Water Pump: UnitedBuilt M3ZRMS 4x3 cast iron water pump
- Ceramic mechanical seal
- Rated up to 750 GPM at 65 PSI
- Made in the USA with domestic and imported materials
Hydraulic Drive: Hydraulic motor and reservoir included installed and plumbed
Hydraulic Pump: Shipped uninstalled; hydraulic lines run
through the tank using Schedule 80 pipe with front stub-out elbows for
connection
Spray System
Valves: Pre-plumbed with UnitedBuilt AV1100 soft-close spray
valves (Made in USA)
Spray Heads:
- (2) BC2399 rear adjustable fan spray heads
- (2) BC2179 side spray duckbill nozzles
- Operation: Each spray valve is independently air-operated
Includes:
100' of ¼" airline - Air control console (packed loose for installation)
Optional Add-Ons
The R-Kit is pre-stubbed for additional bolt-on features,
including:
- Suction fill system
- Hose reel
- Remote-operated Elkhart Nitro HD water cannon
- (2) front spray valves (packed loose; some fabrication
required)