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550ex Series™

5.50 Gross Torque

Performance and value in one unbeatable package. You’ll love the smooth handling of the lightweight, yet powerful 550ex Series™ lawn mower engine. With a best-in-class torque-to-weight ratio, reduced vibration and quieter operation, you can give your lawn a class-A cut with ease. 550ex push mower engines come standard with Super Lo-Tone™ muffler and hassle-free ReadyStart® starting system.

Torque* 5.5
Engine Displacement (cc) 140
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
Bore (in) 2.5
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 Reciol
Air Filter Oil Foam or Dual-Sealing Round Paper
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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