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H3612 3500 PSI, 4.2 GPM

H3612 3500 PSI, 4.2 GPM

The H3612 hot water gas pressure washer, producing 3,500 PSI at 4.2 GPM, is for industrial and commercial use; perfect for the professional who cleans construction sites, buildings, vehicles or heavy equipment; powers a large flat surface cleaner; does graffiti or gum removal; engages in contract cleaning, or washes down farm machinery. There scores of gas powered hot water pressure washers to choose from but the H3612 is unique amongst in a several ways.

1) It features the unique Kränzle pump that can run dry and bypass better than its rivals, as proven in independent laboratory tests, and self primes.

2) It uses an electric-start 13 HP Honda LXE gear-drive engine that has reduces wear and tear on the pump by 50% while increasing torque and cleaning power. The electric start makes starting this powerful pressure washer as easy as turning a key.

3) This hot water pressure washer uses a the electricity from a 12 volt battery and the engine rectifier to run the burner motor, allowing you to generate hot water without plugging into a receptacle.

4)  The four-wheel steel frame will hold up to heavy use.

The H3612 comes all the accessories you need to clean to include: professional gun-jet lance, 50' wire braided hose with quick coupler connections, exit side chemical injection, gauge, four flat tip nozzle set (0 degree, 15 degree, 40 degree, soap). With a cleaning power rating of 14,700 cleaning units, the H3612 hot water gas pressure washer provides a tremendous amount of cleaning power for the toughest outdoor cleaning tasks.  

Measures: 46-inches length by 30-inches width by 41-inches height. Weight: 430 pounds. Metal finish.

Key Features

  • Advanced Kränzle pump design gives multi-hour bypass and run-dry capability preventing accidental pump damage
  • Portable hot water capability is provided by reliable 12V burner system
  • Adjustable Kränzle forged brass unloader
  • Steel frame and stainless steel coil wrap with pneumatic tires
  • Honda GX-LXE 2-1 gear-drive, electric-start engine delivers extra torque and extends pump life


  • HP: 13
  • PSI: 3500
  • GPM: 4.2
  • Weight: 430
  • Part Number: 9800054-s

Replacement Items & Accessories


4000 PSI High Pressure Hose 50' with QC

4000 PSI, 50' Goodyear Neptune high pressure hose with quick couplers.


Starlet Gun-jet Lance with QC

Professional 36" with Starlet gun-jet lance with quick couplers


Flat Tip Nozzle Pack - Size 4.5

Four spray tips, plus a soap nozzle with QC plug.


Chemical Injector 2.1

Downstream, or low pressure soap injector with quick couplers.


AQ Gas Pump

Kranzle AQ gas replacement pump for 11 or 13 HP Honda GX-LX engine.


AQ Pump Packing Rebuild Kit

Replacement kit for the water seals (packings) for the AQ pump.


AQ Pump Valve Rebuild Kit

Replacement kit for the valves for the AQ pump.


AQ Oil Seal

Oil seal for AQ pump.



AQ Plunger

AQ Ceramic-Coated Stainless Steel Plunger


Internal Unloader Rebuild Kit

Unloader Rebuild Kit With Stainless Steel Ball



Unloader Replacement Kit 43444

Replaces all of unloader hand wheel and control spindle


1/4" QC Plug M

Quick coupler plug with male 1/4" thread screws into Industrial Dirt Killer nozzle. 


1/4" QC Socket F

Quick coupler 1/4" socket screws onto the end of the lance.  Female threads.


3/8" QC Plug M

Quick coupler plug with male 3/8" thread screws into butt of gun-jet.


3/8" QC Socket F

Quick coupler socket with female 3/8" thread screws into onto one end of the high pressure hose.


3/8" QC Plug F

Quick coupler plug with female 3/8" thread screws into onto one end of the high pressure hose.


3/8" QC Socket M

Quick coupler socket with male 3/8" thread screws into onto 22mm x 3/8" female fitting at pressure washer outlet.


Fitting: 3/8" F x 22MM F

Fitting with female 3/8" thread screws into onto 22mm x 3/8" female fitting at pressure washer outlet that screws onto the pump outlet.


1/4" O-ring

For use in gun-jet 1/4" quick coupler sockets.


3/8" O-ring

For use in hose and pressure washer pump outlet 3/8" sockets.


Syntec synthetic oil

5W-50 Synthetic oil for use in Kranzle pumps.