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Simpson Professional 4200 PSI (Gas - Cold Water) Aluminum Frame Pressure Washer w/ Honda GX390 Engine & CAT Pump

Simpson Professional 4200 PSI (Gas - Cold Water) Aluminum Frame Pressure Washer w/ Honda GX390 Engine & CAT Pump
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Model: ALH4240
(Based on expert analysis, manufacturer ratings and customer reviews)
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5
Number of Reviews (37)
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$1,299.00
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Ships in 2-5 Business Days
Factory items ship direct from the manufacturer.
Shipping times vary.
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  • Product Description
  • 37
    Reviews
  • 2
    Product Q&A
  • Recommended Accessories
  • How-To Articles
  • Manuals
Product Description
+−
Grade
Style
Water Pressure
4200
PSI
Water Flow
4
GPM
Cleaning Speed
16800
Cleaning Units
Engine
Honda GX
Grade
Commercial
Style
Gas Cold Water
Water Pressure
4200 PSI
Water Flow
4 GPM
Cleaning Speed
16800 Cleaning Units
Engine
Honda GX
Features
Features
  • Honda GX390 OHV Commercial Series Engine With Oil Alert®
  • Starts easy, runs smoothly, & delivers high output
  • Delivers up to 4200 PSI to handle large jobs efficiently
  • CAT® 67DX39G1I Industrial Triplex Plunger Pump
  • Develops up to 4 gallons per minute to clean quickly
  • Triplex pumps run cooler & last longer than axial pumps; can be rebuilt
  • Professional Aircraft Grade Aluminum Platform
  • Brushed extruded aluminum tubing is strong & lightweight
  • 10-year Factory Warranty on frame components
  • Durable 13-inch premium pneumatic tires
  • Ergonomic Spray Gun
  • Designed for comfort and control
  • Safety lock-out to prevent gun from being accidentally activated
  • Pro-Style Spray Wand With 5 Quick Connect Nozzle Tips
  • 0°, 15°, 25°, 40°, & soap applicator nozzles shape the spray
  • Great for construction, facility & fleet maintenance cleaning
  • Monster 3/8" x 50' High-Pressure Steel-Braided Hose
  • Non-marring, kink & abrasion resistant hose w/ quick connects
  • Includes siphon tube detergent injection for a wide variety of pressure washer-safe cleaners
  • On-Board Accessory Storage
  • Keeps hose, spray wand & nozzles organized
Specifications
Engine
Engine Brand
Honda GX
Starter
Recoil
CC
389 CC
Fuel Tank Size
1.6 Gallons
Consumer Engine Warranty
3 Years
Commercial Engine Warranty
3 Years
Pump
Pump Brand
Cat
Pump Type
Triplex Plunger
Adjustable Pressure
Yes
Chemical Injection
Siphon Tube
Water Temperature
Cold
Pump Consumer Warranty
2 Years
Pump Commercial Warranty
2 Years
Water Pressure
4200 PSI
Water Flow
4 GPM
Housing
Frame Type
Aluminum
Wheels
Pneumatic
Hose
Hose Storage
Hook
Hose Length
50 Feet
Hose Material
Rubber
Hose Diameter
3/8 Inch
Hose Connections
Quick-Connect
Spray Gun
Spray Gun Connection
Quick-Connect
Spray Gun Grade
Professional
Spray Gun Wand
Single Wand
Spray Tips
Quick Connect Tips (5)
Turbo Nozzle
Sold Separately
Overview
Weight
128 Pounds
Product Length
40 Inches
Product Width
24 Inches
Product Height
26 Inches
Consumer Warranty
90 Days
Commercial Warranty
90 Days
UPC
879399001345
Grade
Style
Water Pressure
4200
PSI
Water Flow
4
GPM
Cleaning Speed
16800
Cleaning Units
Engine
Honda GX
Grade
Commercial
Style
Gas Cold Water
Water Pressure
4200 PSI
Water Flow
4 GPM
Cleaning Speed
16800 Cleaning Units
Engine
Honda GX
Features
Features
  • Honda GX390 OHV Commercial Series Engine With Oil Alert®
  • Starts easy, runs smoothly, & delivers high output
  • Delivers up to 4200 PSI to handle large jobs efficiently
  • CAT® 67DX39G1I Industrial Triplex Plunger Pump
  • Develops up to 4 gallons per minute to clean quickly
  • Triplex pumps run cooler & last longer than axial pumps; can be rebuilt
  • Professional Aircraft Grade Aluminum Platform
  • Brushed extruded aluminum tubing is strong & lightweight
  • 10-year Factory Warranty on frame components
  • Durable 13-inch premium pneumatic tires
  • Ergonomic Spray Gun
  • Designed for comfort and control
  • Safety lock-out to prevent gun from being accidentally activated
  • Pro-Style Spray Wand With 5 Quick Connect Nozzle Tips
  • 0°, 15°, 25°, 40°, & soap applicator nozzles shape the spray
  • Great for construction, facility & fleet maintenance cleaning
  • Monster 3/8" x 50' High-Pressure Steel-Braided Hose
  • Non-marring, kink & abrasion resistant hose w/ quick connects
  • Includes siphon tube detergent injection for a wide variety of pressure washer-safe cleaners
  • On-Board Accessory Storage
  • Keeps hose, spray wand & nozzles organized
Specifications
Engine
Engine Brand
Honda GX
Starter
Recoil
CC
389 CC
Fuel Tank Size
1.6 Gallons
Consumer Engine Warranty
3 Years
Commercial Engine Warranty
3 Years
Pump
Pump Brand
Cat
Pump Type
Triplex Plunger
Adjustable Pressure
Yes
Chemical Injection
Siphon Tube
Water Temperature
Cold
Pump Consumer Warranty
2 Years
Pump Commercial Warranty
2 Years
Water Pressure
4200 PSI
Water Flow
4 GPM
Housing
Frame Type
Aluminum
Wheels
Pneumatic
Hose
Hose Storage
Hook
Hose Length
50 Feet
Hose Material
Rubber
Hose Diameter
3/8 Inch
Hose Connections
Quick-Connect
Spray Gun
Spray Gun Connection
Quick-Connect
Spray Gun Grade
Professional
Spray Gun Wand
Single Wand
Spray Tips
Quick Connect Tips (5)
Turbo Nozzle
Sold Separately
Overview
Weight
128 Pounds
Product Length
40 Inches
Product Width
24 Inches
Product Height
26 Inches
Consumer Warranty
90 Days
Commercial Warranty
90 Days
UPC
879399001345
Product Specs
+−
Specifications
Engine
Engine Brand
Honda GX
Starter
Recoil
CC
389 CC
Fuel Tank Size
1.6 Gallons
Consumer Engine Warranty
3 Years
Commercial Engine Warranty
3 Years
Pump
Pump Brand
Cat
Pump Type
Triplex Plunger
Adjustable Pressure
Yes
Chemical Injection
Siphon Tube
Water Temperature
Cold
Pump Consumer Warranty
2 Years
Pump Commercial Warranty
2 Years
Water Pressure
4200 PSI
Water Flow
4 GPM
Housing
Frame Type
Aluminum
Wheels
Pneumatic
Hose
Hose Storage
Hook
Hose Length
50 Feet
Hose Material
Rubber
Hose Diameter
3/8 Inch
Hose Connections
Quick-Connect
Spray Gun
Spray Gun Connection
Quick-Connect
Spray Gun Grade
Professional
Spray Gun Wand
Single Wand
Spray Tips
Quick Connect Tips (5)
Turbo Nozzle
Sold Separately
Overview
Weight
128 Pounds
Product Length
40 Inches
Product Width
24 Inches
Product Height
26 Inches
Consumer Warranty
90 Days
Commercial Warranty
90 Days
UPC
879399001345
Reviews
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5
(37)
+−
Simpson ALH4240 Reviews & Ratings
92% of Reviewers Recommend This Product
Product Q&A
(2)
+−
Search Product Q&A's Answered by Matt, the Pressure Washer Expert
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Hi Mike, Is the pressure of this model adjustable only through the gun or can you adjust the pressure on this cat pump as well?
Mark 
from Missouri 
March 08, 2016
Answer
There is a regulator between the spray gun and spray lance to allow you to dial down your pressure. There is ALSO an unloader valve on the CAT pump allowing you to adjust the pressure there as well.
+−
Hi Mike. Do you know what model/part CAT pump is in the ALH4240? Thank you
Cliff 
from New Hampshire 
March 17, 2015
Answer
The CAT pump model would be the 67DX pump.
Recommended Accessories
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How-To Articles
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