The pressure washer should be shut off if not being used for more than 5 minutes.
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STIHL Professional Gas-Powered Cold Water Pressure Washer, 4200 PSI, 4 GPM, Model# RB 800

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- Powerful 14HP, 429cc engine can output up to 4200 PSI of water pressure at 4.0 GPM
- Easy Start Pump System features a pressure relief valve, allowing users to start the unit without any back pressure from the pump
- Quick, easy starting with no hard cord pulls
- Industrial-grade components for exceptional durability
- Brass manifold pump design, stainless steel valves and ceramic-coated pistons for exceptional, long-lasting performance
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
This item may be purchased at select Northern Tool stores. Not available for online order at NorthernTool.com.
What's Included
- (1) Pressure washer (1) 50ft. high-pressure hose
Features + Benefits
- Powerful 14HP, 429cc engine can output up to 4200 PSI of water pressure at 4.0 GPM
- Easy Start Pump System features a pressure relief valve, allowing users to start the unit without any back pressure from the pump
- Quick, easy starting with no hard cord pulls
- Industrial-grade components for exceptional durability
- Brass manifold pump design, stainless steel valves and ceramic-coated pistons for exceptional, long-lasting performance
- Comes standard with a detergent injector system, so you can easily add detergents to the washer for efficient cleaning
- 4-point anti-vibration system reduces pump vibration during use for increased unit longevity
- 2-piece lance and gun assembly features reverse trigger pull for easy operation and extended length for better accuracy in tall applications
- Low oil shutdown is built in for engine protection
- On/off and fuel valve control allows the user to shut unit off and close fuel valve automatically for easy, no-mess transport
- Protective roll cage designed frame provides heavy-duty protection
- 1 1/4in. dia. powder-coated steel tube frame with fold-down handle
- 50ft. high-pressure steel braided hose allows you to reach more area without having to move the machine
- Easy-access inlet and outlet water connections
- Rugged 13in. pneumatic tires with tubes and steel rims tackle any terrain
- Includes premium corrosion- and wear-resistant stainless steel nozzles for use with high-pressure water and a brass nozzle for use with detergent
Key Specs
| Attribute | Specification |
|---|---|
item# | 638651 |
Brand | Stihl |
Manufacturer's Warranty | 24 months parts/24months labor |
Ship Weight | 168.0 LB |
Pressure | 4,200 PSI |
Flow | 4 GPM |
Engine Brand | Kohler |
Engine Model | 800 |
Engine Displacement | 429 cc |
Fuel Type | Gasoline |
Pump | Triple |
Drive Style | Direct |
Number of Tips Included | 4 |
Adjustable Pressure | No |
| Attribute | Specification |
|---|---|
Start Type | Manual |
Engine Oil Included | Yes |
Engine Oil Type | 10w-30 |
Fuel Capacity | 1.3 Gal |
Chemical Injector | Yes |
Hose Length | 50 ft |
Nozzle Type | stainless steel nozzles |
Quick Connect Nozzle | Yes |
Pump Oil Included | Yes |
Low Oil Shutdown | Yes |
Thermal Protector | Yes |
Product Weight | 168.0000 lb |
Dimensions L x W x H (in.) | 33.0 x 31.0 x 32.0 in |
Reviews
Questions & Answers
Questions
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· a year ago
Is it ok to let the engine run if not using sprayer
1 answer-
ProductExpert6· a year ago
Helpful?
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· 5 years ago
make and model of pump
1 answer-
ProductExpert12· 4 years ago
The pump is manufactured by Annovi Reverberi (AR). It is made specifically for this pressure washer, so it does not have a model number found on the market.
Helpful?
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· 5 years ago
What type of oil does it take
1 answer-
ProductExpert38· 5 years ago
Stihl offers their Tech 4 Plus oil. You can also use any other brand of 4 cycle engine oil.
Helpful?
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· 5 years ago
What make engine does the Stihl Model #RB 800 pressure washer use?
1 answer-
ProductExpert11· 5 years ago
The pressure washer is powered by a Kohler gasoline engine.
Helpful?
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· 5 years ago
What size of chemical injector the RB800 unit have !?
1 answer-
ProductExpert38· 5 years ago
The chemical injector is a hose used to insert in to a separate container. This should be used with the 65 degree nozzle only.
Helpful?
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· 6 years ago
hoses
what is the max hose we can run on this pw to get max output, 200 ft
1 answer-
ProductExpert30· 6 years ago
The Stihl Gas Cold Water Pressure Washer - 4200 PSI will perform it's best with the included 50 foot hose. The pressure washer will work with additional hoses attached but it will begin to lose pressure. There are too many variables to determine exact pressure loss at 200 feet of hose.
Helpful?
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· 7 years ago
Is the PSI adjustable?
1 answer-
ProductExpert25· 7 years ago
The Stihl Professional Pressure Washer has a regulator to adjust the PSI up to 4200 PSI.
Helpful?
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Warranty
Manufacturer's Warranty
24 months parts/24months labor
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Repair Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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Specifications
4,200 PSI
4,000 PSI
2,000 PSI
3,300 PSI
4 GPM
3.5 GPM
3.5 GPM
2.5 GPM
Kohler
Honda
Honda
Kohler
800
GX390
GX200
Command Pro CH270
429 cc
389 cc
196 cc
208 cc
Gasoline
Gasoline
Gasoline
Gasoline
Triple
CAT 5cp
CAT 2sf35gs
CAT 4dnx
Direct
Belt
Direct
Direct
4
4
4
4
No
Yes
Yes
Yes
Manual
Recoil
Recoil
Recoil
Yes
No
No
No
10w-30
SAE 30
SAE 30
SAE 30
1.3 Gal
1.6 Gal
0.83 Gal
1.05 Gal
Yes
Yes
No
Yes
50 ft
50 ft
100 ft
50 ft
stainless steel nozzles
Quick-connect
Quick-connect
Quick-connect
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
168.0000 lb
210.0000 lb
550.0000 lb
95.0000 lb
33.0 x 31.0 x 32.0 in
50.5 x 28.5 x 26.25 in
75.0 x 43.0 x 42.0 in
40.25 x 26.0 x 23.75 in
-
19 ft-lbs.
9.1 ft-lbs.
10.5 ft-lbs.
-
140 °F
140 °F
140 °F
-
3.5
5
3
-
3/8 in
1/4 in
3/8 in
-
-
140 °F
-
-
-
30w Nondetergent
-
-
-
-
10 in









