Powerful Honda 13.0-HP GX390 Engine with Oil Alert® •Easy to start; quiet and reliable
Belt Drive Engine And Pump System •Efficient and long lasting
General Triplex Plunger Pump •Ceramic components run cooler to last longer •5 year factory warranty
Adjustable Unloader •Allows you to customize the pump for the task at hand
Professional Gun With 36-inch Stainless Steel Spray Wand •Quick change tips: 0°, 15°, 25°, 40°; built in chemical injection •Includes 50 foot, dual braid Monster Hose
10 Gauge Heavy-Duty Powder-Coated Steel Frame •10 gauge steel sub-frame provides additional support •Polished chrome front and rear handles
Model
Model Number:
WB4200
UPC:
879399000041
Manufacturer:
Simpson
Made in USA:
Yes
Engine
Engine Brand:
Honda GX
Starter:
Recoil
HP/CC
13 HP
Engine Consumer Warranty:
3 Years
Engine Commercial Warranty:
3 Years
Pump
Pump Brand:
General
Pump Type:
Triplex Plunger
Adjustable Pressure:
Yes
Chemical Injection:
Siphon Tube
Pump Consumer Warranty:
5 Years
Pump Commercial Warranty:
5 Years
Housing
Frame Type:
2-Wheel Cart
Wheels:
Pneumatic
Hose
Hose Storage:
Hook
Hose Length:
50 ft
Hose Material:
Polyurethane
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)
Overview
Weight:
200 Lbs. (90.72 kilograms)
Mfr Consumer Warranty:
1 Year
Mfr Commercial Warranty:
1 Year
Download Documents
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1 Question
Q: Hi Bill,
What's the real difference between the Simpson Professional 4200 PSI P.W. and the Pressure Pro 4000 P.W. Also, why is a belt driven engine pump combination better than direct attachment? Thanks! V/r Les by Les McPeak from Illinois on May 19, 2011
A: Ideally, there is not going to be a huge difference withe the Pressure Pro and the Simpson, both are high quality models. The Pressure Pro units do give you a little more tlc being they are all built as the order comes in and don't come off of an assembly line, but the quality is still there on either unit.
The benefits of a belt driven unit is the pump is going to run at half the RPM as a direct drive. A belt driven pump is going to run at an RPM of about 1740 and a direct drive runs at or around 3250-3600. This is going to put less pressure on the pump and give you a longer lasting product. In alot of cases it really can depend on how much you use the unit. If you are just looking for a high quality pressure washer for your home and some other odd jobs, a direct drive unit is more than fine, but if you are using for business and multiple tasks and it will be getting alot of use, a belt drive is a better way to go.
Thanks,
Pressure Washers Direct by Bill, Product Expert
Overall Rating
5.0
(Based on 1 Reviews)
Sort By
March 16, 2007
Mark Martin
Simpson Professional 4200 PSI (Gas-Cold Water) Belt-Drive Pressure Washer Review
(No, I am not the race car driver). This machine is really slick. Lots of power, easy to start, clearly the best pressure washer I ever owned. I started my pressure washer business 5 years ago and swear by these Simpson machines. I used to buy cheaper brands but am totally convinced to buy the best, which is Simpson. The Honda engine is great and the belt drive system is much better for the amount of use I put on these machines than the direct drive. Really nice hose doesn't mark stuff like the other ones I had.
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