3100 MAX PSI* / 4.5 MAX GPM* Gas Pressure Washer

3100 MAX PSI* / 4.5 MAX GPM* Gas Pressure Washer

Enhance your outdoor cleaning experience with the Snapper® SP3100 Gas Pressure Washer featuring PowerFlow+ Technology™ Dual Mode Cleaning. Powered by a reliable Briggs & Stratton® EXi875 Series™ engine, this pressure washer allows you to switch between High Pressure and High Flow modes to accomplish your toughest cleaning jobs. Conveniently store your SP3100 in small spaces by using the fold-down handle.


PowerFlow+ Technology™ Dual Mode Cleaning

Use the High Pressure or High Flow mode depending on the job at hand.

Briggs & Stratton EXi875 Series™, EXi875 Engine

No prime, no choke, no oil changes.

Just Check & Add™ Technology

Never worry about changing the oil for the life of the engine.

7-in-1 Nozzle

Saves time by adjusting pressure settings and applying soap with a twist of the wrist.

Maintenance-Free Axial Cam Pump with Easy Start™ Technology

This pump is specially designed for high-performance, high-pressure output and easy, low-effort starting.

30 ft High Pressure Flexible Hose

Lets you clean further without having to move your pressure washer.

Performance You Can Trust

As a member of the Pressure Washer Manufacturers’ Association (PWMA), Briggs & Stratton tests the pressure washers it designs through a third-party testing program to validate our claims of performance.


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Engine Brand
Briggs & Stratton
Engine Series
EXi Series™, EXi875 engine
Torque (ft-lbs) **
3100 MAX @ 2.1 GPM
4.5 MAX @ 150 PSI
Engine Displacement (cc)
OHV Engine
Fuel Tank Capacity (gal)
Pump Type
Adjustable Pressure Regulator
Number of Spray Nozzles
Hose Length (ft)
10" Never-Go-Flat
Thermal Relief Valve
Cleaning Solution Injection System
Detergent Tank
Weight (lbs)
Length (in)
Width (in)
Height (in)
Consumer Warranty***
2 Year Limited
Commercial Warranty***
90-Day Limited

* This pressure washer is rated in accordance to the Pressure Washer Manufacturers' Association (PWMA) standard PW101-2018 (Testing and Rating Performance of Pressure Washers).
** All power levels are stated gross torque at 2600 RPM per SAE J1940 as rated by Briggs & Stratton.
***See Operator's Manual or www.briggsandstratton.com for complete warranty details
Briggs & Stratton has a policy of continuous product improvement and reserves the right to modify its specifications at any time and without prior notice. Product may vary from images shown.
†Than standard pressure washer engines when the spray gun trigger is released.

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