New Klein Model K400Q with New 2020 Peterbilt 348 6×4 Chassis

The new Klein model K400Q Trap tank is a 4,000-gallon water truck tank system designed for on and off highway use in operating conditions of general construction and excavation where water for compaction and dust control is essential. The new “Q” specification option features added tank baffles, heavier structural steel tube sub-frame and off highway flexible mounting system. The innovative Klein TRAP tank system makes this work truck the ultimate for job site and operator safety.

The Klein K400Q tank system on this super strong Peterbilt 348 chassis platform makes this work truck package the leading choice for any construction, quarry, landfill or other operation in general construction, excavation, dust control or compaction application. Equipped with innovative Klein-branded water pump and water discharge equipment, this reliable work water truck provides extraordinary performance and safe functionality.

The truck chassis features HD front and rear axles, HD frame and suspension, and plenty of content that makes this truck built the RIGHT way for the application.

This truck chassis is available NOW for custom K400 tank equipment specification and upfit.

Call now. Let your knowledgeable Klein rep explain all the details on this great heavy duty water truck package.


  • Availability: SOLD. 2021 model available soon.
  • Last Updated: June 21, 2021
Chassis Make: Peterbilt
Chassis Model: 348 6×4
Model Year: 2020, New, Unused
Status: New
Tank: Klein
Model: K400
Capacity: 4,000 US Gallons, Approx.
Klein S/N: Confirm
FOB: Jacksonville, TX

Summary of Main Chassis Specification

Engine: Paccar PX-9 300
Transmission: Allison 3000 RDS 6-Speed
GVWR: 60,000 lbs
Front Axle: 20,000 lbs Meritor MFS20
Front Suspension: 20,000 lbs Tapered Leaf Spring with Shocks
Rear Axle: 40,000 lbs Meritor MT40-14X
Rear Suspension: Hendrickson HAULMAAX HMX 400, 40,000 lb capacity
Brakes: Full Air. Drum Style
Frame: 10 5/8″ with Full Inner Liner
Fuel Tank: 70 Gallon, Aluminum
Tires, Front: 385/66r22.5. 18 ply.
Wheels, Front: Alcoa Aluminum. 2 each.
Tires, Rear: 11r22.5 14 ply.
Wheels, Rear: Accuride Painted Steel
Exterior Color: White


Value Added Options/Features

  • Battery switch
  • Remote throttle/PTO options
  • Air horn under hood
  • Heavy duty steel front bumper upgrade
  • Removable tow hooks
  • Corner windows on cab
  • Electric window lifts
  • AM/FM/WB/USB/Bluetooth
  • Stainless steel visor


  • Detailed chassis specification available upon request
  • Weight Study/CG calculations available upon request
  • Chassis gradability reports & shift split charts available upon request

 main tank equipment features

Tank: Klein, Trap Design
Model: K400Q
Capacity: 4,000 approx. U.S. Gallons (Approx.)


discharge package

Water Pump: Klein KP3FL
Pump Drive System: PTO drive from transmission mounted PTO
Rear Spray: Two (2) right/left Klein combination sprayhead fan discharges
Side Spray: Two (2) driver side & passenger Klein sidejet sprayheads
Front Spray: Two (2) right/left Klein combination sprayhead fan discharges
Control Module: Standard Klein manual air actuated control panel
Suction Loading: Yes. Includes two (2) sections of 10′ hose with storage tubes in tank, and hand primer.
Gravity: Provisions. Available as option.
Hose Reel: Yes. 50′ x 1-1/2″ hose. Manual Rewind with one man hose reel operations.
Pressure Outlet Group: Yes. One 1.5″ with valve and one 3/4″ ball valve.
Turret Monitor: Provisions. Available as option.

tank equipment

Quarry Specification: Yes. Added PFC baffles, HD subframe, HD off road mounts.
Baffles: Quarry Spec. PFC Precision Flow Control Load Stabilization System.
Head/Baffle Design: Flanged Tank Bulkheads
Fenders: Tank integrated. Flanged, welded. Mudflaps.
Fender Undercoating: Available as option.
Fill Line: Yes. 2.5″ Rear mounted.
Fill Line Options: Includes Cam Lock and fill line drain valve
Mounting Hardware: Heavy duty intersecting quarry spec. Off road mounts. 3 per side. 6 total.
Manhole: 30″
Manhole Options: Trash screen
Sight Glass: Yes. Front and Rear of tank.
Low Water Drain Package: Yes.
Kleinview Rear Camera: Yes.
Perimeter Lights: LED surface mount lights. Two (2) front of vehicle, two (2) rear facing, rear of tank, two (2) switches.
Rotating Lights: Yes. One (1) mounted on rear tank.
Liquid Level Indicator, Electronic: No.

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