550 Series™

5.00 Gross Torque

Sturdy and simple to get the job done. The 550 Series™ small engines offer longer life and ease of operation for outdoor power equipment. Overhead Valve (OHV) technology, an automotive-style air filter, cast iron cylinder sleeve and dual ball bearings combine to meet your needs time after time.

  • More gross torque to take on even the most demanding jobs.

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

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

  • Dura-Bore™ Cast Iron Sleeve

    Withstands wear and abuse.

  • Super Lo-Tone Engine Muffler

    The quietest lawn mowing experience possible.

  • Magnetron® Electronic Ignition

    Fast, reliable and maintenance-free starting.

  • 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* 5.50
Engine Displacement (cc) 127
Number of Cylinders Single
Engine Configuration Horizontal Shaft
Engine Technology OHV
Length (in) 10.1
Width (in) 13.4
Height (in) 13.4
Weight (lbs) 29.5
Bore (in) 2.44
Stroke (in) 1.65
Engine Fuel Gasoline
Fuel Tank Capacity (gallons) 0.5
Lubrication System Dura-Lube Splash Lubrication
Oil Capacity (oz) 20
Oil Filter N/A
Starter Manual Choke
Air Filter Dual Element Cartridge
Muffler Lo-Tone™
Fuel Shutoff Valve Standard
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.

550 Series™ is rated 4.6 out of 5 by 5.
Rated 4 out of 5 by from This product is a good one Easy to use, easy to start, sure and security for user.My wife can use...and my son under 18...Not too noisy
Date published: 2012-08-09
Rated 5 out of 5 by from Long Live B&S engines This is an Excellent engine,it joins all my other B&S engines, my first one was a 1966 engine on a Moto Mower riding mower,serial # SAMPLE, and still runs like new after all these years,my tiller bought in 1995 and still going strong and used every year since new and a couple of push mowers, i will not use any other engine but B&S ,they have all stood the test of time and more, Quality and durabilty built to last. Thank you.
Date published: 2012-07-31
Rated 4 out of 5 by from great work horse this enging runs and runs and runs. these engines have come to the point where with little matinance you can run them for a lifetime. great enging A+++++
Date published: 2012-08-04
Rated 5 out of 5 by from Great Engine I stuck this engine on a McLane Reel Mower, it starts first pull every time, makes great power and also runs very quite.
Date published: 2012-08-09
Rated 5 out of 5 by from cockwork engine so far so good...the engine i have is quiet and good to start, i like the auto steady rev. which is fast enough for power takeoff. all round its a good plant
Date published: 2012-04-12
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