Stihl RB 800 - 4200 PSI 4 GPM 429cc Gas Pressure Washer
The Stihl RB 800 is a gas-powered pressure washer offering a maximum water pressure of 4200 PSI and flow of 4 GPM. (Read full specs)
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Description
This power washer is the most impressive one in the STIHL lineup. It is designed for heavy-duty commercial use and can get through tough cleaning jobs. With 4,200 psi of water pressure and 429 cc engine, the RB 800 cleans up the dirtiest jobs with ease. Its industrial design is made to withstand heavy daily use.
Zoom on the Stihl RB 800
In summary, the Stihl RB 800 is a commercial pressure washer, that offers an all-around versatile cleaning experience, and also:
- focused spot cleaning on hard, unpainted surfaces, accessing high spots, and efficiently eliminating stubborn stains
- complete cleaning of hard surfaces, vehicle washing, and surface prep for painting
- gentle cleaning for sensitive surfaces, and wide coverage cleaning with low pressure
- using cleaning solutions, and rinsing surfaces to remove residue
Ahead are presented its power characteristics and design, its main features and any other additional features.
Power
The Stihl RB 800
Using an impressive 429cc (14 hp) engine, its brass triplex pump delivers a pressure of up to 4200 PSI (roughly 70 times more than a standard garden hose) and a flow of up to 4 GPM (values claimed by the manufacturer). When these values are taken together, they yield a cleaning power of 16800 Cleaning Units.
To start the Kohler CH440 engine of this gas-powered washer, users employ the familiar pull-start technique.
The pressure washer's tank has a maximum capacity of 1.8 gallon for storing gasoline.
Design & Handling
Enhanced mobility is a key feature of the Stihl RB 800, thanks to its hand truck design. The robust steel tubing frame guarantees longevity of the assembly, providing stability and protection for internal components, even under demanding working conditions. The folding handle enhances its mobility, while allowing for a convenient storage.
Tipping the scales at 168 lbs, this unit's weight presents a notable challenge for users, especially when it comes to lifting and moving it, particularly over uneven ground. A key role in its final weight is played by its 429cc Kohler CH440 engine, the triplex pump and steel tubing frame. Nonetheless, the addition of two 13" pneumatic wheels simplifies maneuvering the RB 800, even across rough ground.
Main Features
The Stihl RB 800
The Stihl RB 800 comes with a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, which are detailed below.
- Soap injection: While not equipped with a soap tank, the device maintains detergent supply through a siphon hose. Due to the absence of a soap dilution feature, users of the Stihl RB 800 must ensure detergent is correctly diluted prior to use. Connection of a soap nozzle triggers the pressure washer to automatically incorporate the detergent into the water stream.
- Pressure hose: With a set of convenient hooks, the unit offers a practical solution for maintaining workspace order, allowing the included 50 ft ⌀3/8" high-pressure hose to be neatly stored when idle.
- Spray gun and wand: Both the classic ergonomic spray gun and its wand may be conveniently stored in a side hook. A rotating auxiliary side handle further improves both left-handed and right-handed users' comfort.
- Nozzles: In the table below, you can see the 5 included nozzles alongside their respective recommended surface uses.
0° | 15° | 25° | 40° | Soap | |
|---|---|---|---|---|---|
| Concrete, brick, masonry | |||||
| Siding, gutters, house | |||||
| Fencing, deck, patio | |||||
| Lawn equipment, boat, RV |
Important: The nozzle shapes shown above are for illustrative purposes and may vary. Symbols denote suitability, with a indicating 'Not recommended,' a for 'Suitable,' and an for 'Use with caution.'
Other Features
The Stihl RB 800
- Onboard storage: The Stihl RB 800 features a handy storage area, which allows you to neatly store nozzles and accessories and be always prepared by having everything needed at hand.
- Safety: Safety of operation is enhanced by a low oil protection, a trigger lock mechanism (which prevents accidental operation) and a thermal relief valve (which helps to prevent internal pump damage).
- Accessories: Besides the usual owner's manual (opens in a new tab) and documentation to get you promptly started, the Stihl RB 800 comes with soap hose, oil, pressure hose, spray gun and wand.
Product Videos
The Stihl RB 800's performance versus other pressure washers
The following charts are provided to give you an idea of how the key specs of the Stihl RB 800 compare to similarly priced pressure washers.
- Equipped to deliver up to 4200 PSI, the Stihl RB 800 is recognized as one of the top performers among gas-powered products capable of producing the highest water pressure, priced between $2100 and $2300.
- In the aforementioned price range, the 4 GPM (gallons per minute) of this washer makes it one of the best performing units in terms of the delivered volume of water.
- Boasting 16800 Cleaning Units (PSI X GPM), the RB 800 places itself as one of the most efficient choices in its specific price range.
Price comparison
As you can see from these interactive charts, when compared to other gas-powered washers between 16500 and 17000 Cleaning Units, the Stihl RB 800 is on the expensive side of the price range.
While certainly not the cheapest of its cleaning power range, purchasing it could most likely also mean enjoying the reliability of a high-end product.
The bottom line
- Triplex pump
- Good range of nozzles included
- Onboard storage
- Several security features
- High PSI for the price
- High GPM for the price
- High CU for the price
- On the expensive side
- No soap tank
- No detergent dilution mechanism
Do you own the Stihl RB 800 and agree (or disagree) with these strengths and weaknesses?
Let us know and write your own review.
Features and Specifications
| Fuel | Gas-Powered |
|---|---|
| Engine | 429cc 14 HP Kohler CH440 4-stroke OHV |
| Pump | Annovi Reverberi Triplex |
| Water | Cold (125°F max.) |
| PSI | 4200 |
| GPM | 4 |
| Cleaning Units | 16800 |
| Pressure control | Valve |
| Frame | Steel tubing |
|---|---|
| Pump material | Brass |
| Handling | Hand Truck |
| Wheels | 2 wheels, ⌀13", pneumatic |
| Weight | 168 lbs |
| Dimensions | Approx. 33.5 x 31 x 45.8 in (D x W x H) |
| Hose storage | Hooks |
| Soap injection | Via siphon hose |
|---|---|
| Soap dilution | No |
| Nozzles | 0°, 15°, 25°, 40°, Soap |
| Quick connect nozzles | Yes |
| Onboard storage | Yes |
| Hose | 50 ft, ⌀3/8 |
| Security | Low oil, trigger lock and thermal relief valve |
|---|---|
| Emissions | EPA |
| Included accessories | Oil, wand, spray gun, high pressure hose, soap hose, 5 nozzles |
| Warranty | 2 years |
| Other model numbers | 47920124600US |
| UPC | 886661293766 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
About Stihl
Since revolutionizing the forestry industry in 1926 with the invention of the first two-person electric chainsaw, STIHL has become one of the top-selling brands of outdoor power equipment in the US and around the world. Their ever-growing product line includes gas-powered, corded-electric and battery products. Made in the USA and in China by over 2,000 dedicated employees at their state-of-the-art, dedicated, manufacturing facilities in Virginia Beach, VA, and in Qingdao, STIHL products are sold by local, authorized dealers in over 80 countries.
Warranty Information
The Stihl RB 800 is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of Stihl pressure washers, please consult Stihl's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-800-467-8445.
