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625ex Series™

6.25 Gross Torque

Cutting your lawn has never been easier. New 625 Series™ lawn mower engines feature the ReadyStart®starting system, so there's no priming or choking —only a pull for power. It's the lightest push mower engine in its class by 30 percent, which means it's easier to maneuver. Add that to other enhancements that reduce noise and vibration, all while increasing comfort and extending engine life, and you've got one great solution to your lawn care challenges.

  • Watch the video for a walkthrough of all of the innovative features in the new 625ex Series™ engine from Briggs & Stratton.

  • Starting Promise. 2 attempts or we fix it free!

    Starts in 2 attempts – or we'll fix it for free.*

  • Advanced Formula Fuel Treatment and Stabilizer | Briggs and Stratton

    Safeguards engines against ethanol damage and maintains fuel stability for up to 3 years.

    See the full benefits of Advanced Formula Fuel Treatment & Stabilizer.

  • Briggs & Stratton OHV Engine Design
    Overhead Valve (OHV) Engine Design

    OHV engines run cooler and cleaner for better fuel economy and longer engine life.

  • Super Lo-Tone Engine Muffler

    The quietest lawn mowing experience possible.

  • See how easy engine starting can be. No prime, no choke–just pull for power.

  • Lawn Mower Engine Torque

    Cubic centimeters (cc) only measure the size of the engine on your lawn mower or outdoor power equipment. Torque measures the power that rotates the blade. Maximize your mowing power.

  • Avoid Lawn Mower Engine Damage

    Look Before you pump fuel into your lawn mower and help avoid engine damage. Do not use any fuel containing greater than 10 percent ethanol (E10) in the engine on your outdoor power equipment.

  • Light flywheel with mechanical governor

    Enhances handling and performance.

  • Automotive-Style Paper Filter

    Protects your engine from dirt and grime.

  • Have a question? Search our FAQs to find answers related to model specifications, routine maintenance, repair or troubleshooting. Search FAQs »

  • Find genuine Briggs & Stratton repair and/or maintenance parts for your engine or outdoor power equipment to ensure future performance. Purchase Parts »

Torque* 6.25
Engine Displacement (cc) 150
Number of Cylinders Single
Engine Configuration Vertical Shaft
Engine Technology OHV
Length (in) 13.8
Width (in) 12.2
Height (in) 9.6
Weight (lbs) 17.5
Bore (in) 2.58
Stroke (in) 1.75
Engine Fuel Gasoline
Fuel Tank Capacity (gallons) 0.2
Lubrication System Dura-Lube Splash Lubrication
Oil Capacity (oz) 15
Oil Filter No
Starter Recoil
Air Filter Dual-Sealing Paper Element
Muffler Super-Lo Tone™
Fuel Shutoff Valve No
Certified Power Rating

*All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.

*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.

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