• Manufacturer: Simpson
  • SKU: ALH4240

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Ships in (est) 2-5 business days
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  • Price Match On Most Items
  • Manufacturer Direct
  • Exceptional Customer Service
  • Free Replacement Shipping
To place an order over the phone or for immediate assistance, please call (888) 978-4993. For after hours sales please call (888) 999-1522.
 Brand new in box & manufacturer direct
 2 year warranty on CAT pump
 3 year warranty on Honda engine
 10 year warranty on aluminum frame
 Sealed with all original accessories
 Authorized Simpson dealer
 Ships out same or next day

What's In the Box:

  • Pressure Washer
  • Hose
  • Gun 
  • Wand
  • 5 Quick connect nozzle tips
  • Detergent siphon tube with filter
  • Engine oil
  • Quick start set up guide
  • Owner's manual

We cannot accept any returns on pressure washers.  If there are issues with the unit, any repairs will be done at your nearest authorized Simpson repair center (at no charge to you).

Designed to meet the rigorous demands of the cleaning pro, the SIMPSON® Aluminum Series frame is crafted of 100% professional grade aluminum, making it lighter in weight than most steel frame designs. Perfect for contractors who specialize in deck cleaning, wood restoration, paint preparation, graffiti removal, and all other professional cleaning services. Equipped with commercial series OHV engines and industrial triplex plunger pumps that are built with high-quality components and designed for optimum performance in the harshest environments. Welded aircraft grade aluminum platform with brushed extruded aluminum tubing and pneumatic tires for mobility across most any surface. Pro-style quick connect spray wands and nozzles, with professional spray gun, allows users to operate with ease. High pressure hoses are non-marring, kink and abrasion resistant, and either polyester or steel-braided for exceptional strength and long-life. For those extra dirty jobs, drop the detergent siphoning tube into pressure washer safe detergent and attach the soap applicator nozzle.

  • HONDA® GX390 OHV commercial series engine with Oil Alert®
  • CAT Industrial Triplex Plunger Pump for dependable performance
  • 50' x 3/8" high pressure steel-braided hose is non-marring, kink and abrasion resistant, and equipped with Quick Connectors
  • Aircraft grade aluminum platform with brushed extruded aluminum tubing and 13"pneumatic tires
  • Pro-style spray wand with 5 quick connect nozzle tips - 0°, 15°, 25°, 40°, and soap applicator nozzle
  • Convenient on-board accessory storage for spray gun/wand, high pressure hose, and nozzles
  • Downstream detergent injection system
  • Product Length : 40 Inches
  • Product Width : 24 Inches
  • Product Height : 26 Inches
  • Product Weight: 128 lbs

Specifications:

Pressure Rating (PSI) 4200
Gallons per Minute (Gallons) 4
Usage Extra heavy-duty
Engine Brand Honda
Engine Displacement (Cu. Centimeters) 389
Engine Torque (Ft/Lbs) 18.5
Engine Horsepower (HP) 13
Engine Series GX390
Pump Type Commercial-grade triplex
Number of Spray Tips Included 5
Detergent Tank Options None
Chemical/Detergent Injection Yes
Hose Length (Feet) 50
Wheel Type Pneumatic
Wheel Material Rubber
Start Type Manual/Pull start
Fuel Capacity (Gallons) 1.6
Recommended Engine Oil 10W-30
Engine Oil Capacity (oz.) 37.19
Package Contents Power Unit, Handle, Spray Gun, Spray Wand, Spray Nozzles, High Pressure Hose, Instruction Manual, Engine Oil
Assembled Weight (lbs.) 126
Hose Diameter (Inches) 3/8-in
Hose Material PVC
Nozzle Type Pro style tips with quick disconnect
Quick Connect Tips Yes
Adjustable Wand Yes
Variable PSI No
Color Silver
Color Family Gray/Silver
CARB Compliant Yes
Series Name Aluminum
Lowe's Exclusive No
Engine Oil Included Yes
Water Temperature Cold
CA Residents: Prop 65 Warning(s) Yes
Warranty 3-year limited
Limited Warranty – Commercial Use 3 Year Honda GX Engine, 2 Year CAT Pump, 10 Years Frame Components, 90 Days Accessory.

Customer Reviews

Based on 38 reviews
92%
(35)
3%
(1)
3%
(1)
0%
(0)
3%
(1)
K
K.W.
Powerhouse
K
K.P.
Best customer service and the best pressure washer
D
D.M.
Resealing Driveway
S
S.
ALH4240 Removing the vent plug on the water pump.
B
B.S.
Great Pressure Washer!

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Customer Reviews

Based on 38 reviews
92%
(35)
3%
(1)
3%
(1)
0%
(0)
3%
(1)
K
K.W.
Powerhouse
K
K.P.
Best customer service and the best pressure washer
D
D.M.
Resealing Driveway
S
S.
ALH4240 Removing the vent plug on the water pump.
B
B.S.
Great Pressure Washer!

Customer Reviews

Based on 38 reviews
92%
(35)
3%
(1)
3%
(1)
0%
(0)
3%
(1)
K
K.W.
Powerhouse
K
K.P.
Best customer service and the best pressure washer
D
D.M.
Resealing Driveway
S
S.
ALH4240 Removing the vent plug on the water pump.
B
B.S.
Great Pressure Washer!
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