Professional Series™ (Single Cylinder)

15.5 - 19.0 GROSS HORSEPOWER

World-class performance – time after time. With commercial-grade power, easy starting and quiet operation, the Professional Series riding mower engine delivers great results for your toughest jobs. And it keeps delivering, because this mower engine is built to last with our exclusive Advanced Debris Management System, chrome-plated exhaust valves and other durable features.

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Riding Lawn Mower Engine Reviews

Product Details

Professional Series™ rider mower engines

Single cylinder and V-twin engines offer the best of both worlds: world-class endurance and power.

Advanced Debris Management System

Keeps the engine clean by deflecting and ejecting grass and debris for a longer engine life.

Full Pressure Lube System

Cooler operation and longer life.

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Use E10 or Less Engine Fuel

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.

Advanced Formula Fuel Treatment & Stabilizer

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

See the full benefits of Advanced Formula Fuel Treatment

Dura-Bore™ Cast Iron Sleeve

Withstands wear and abuse.

Tool-less Air Cleaner Cover

Easy access for filter changes

Overhead Valve (OHV) Engine Design

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

Manuals

Download the operator's manual or illustrated parts list for your Briggs & Stratton engine or equipment by following our step-by-step process.

FAQs

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

Maintenance How-To Articles

Find DIY articles on how to use & maintain your Briggs & Stratton engine or equipment.

Shop Repair & Maintenance Parts

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

HP (gross) ** 15.5
Engine Displacement (cc) 500
Number of Cylinders Single
Engine Configuration Vertical Shaft
OHV Engine Yes
Length (in) 18.9
Width (in) 16.2
Height (in) 12.9
Weight (lbs) 77
Bore (in) 3.56
Stroke (in) 3.06
Engine Fuel Gasoline
Fuel Tank Capacity (gal) N/A
Lubrication System Full Pressure Lubrication
Oil Capacity (oz) 48.0
Oil Filter Premium
Starter Electric Start
Air Filter Dual Element Cartridge with Advanced Debris Management
Muffler Optional
Certified Power Rating Download Power Curve

*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.
**All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.

HP (gross) ** 16.5
Engine Displacement (cc) 500
Number of Cylinders Single
Engine Configuration Vertical Shaft
OHV Engine Yes
Length (in) 18.9
Width (in) 16.2
Height (in) 12.9
Weight (lbs) 77
Bore (in) 3.56
Stroke (in) 3.06
Engine Fuel Gasoline
Fuel Tank Capacity (gal) N/A
Lubrication System Full Pressure Lubrication
Oil Capacity (oz) 48.0
Oil Filter Premium
Starter Electric Start
Air Filter Dual Element Cartridge with Advanced Debris Management
Muffler Optional
Certified Power Rating Download Power Curve

*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.
**All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.

HP (gross) ** 17.5
Engine Displacement (cc) 500
Number of Cylinders Single
Engine Configuration Vertical Shaft
OHV Engine Yes
Length (in) 18.9
Width (in) 16.2
Height (in) 12.9
Weight (lbs) 77
Bore (in) 3.56
Stroke (in) 3.06
Engine Fuel Gasoline
Fuel Tank Capacity (gal) N/A
Lubrication System Full Pressure Lubrication
Oil Capacity (oz) 48.0
Oil Filter Premium
Starter Electric Start
Air Filter Dual Element Cartridge with Advanced Debris Management
Muffler Optional
Certified Power Rating Download Power Curve

*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.
**All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.

HP (gross) ** 18.5
Engine Displacement (cc) 540
Number of Cylinders Single
Engine Configuration Vertical Shaft
OHV Engine Yes
Length (in) 18.9
Width (in) 16.2
Height (in) 12.9
Weight (lbs) 77
Bore (in) 3.7
Stroke (in) 3.06
Engine Fuel Gasoline
Fuel Tank Capacity (gal) N/A
Lubrication System Full Pressure Lubrication
Oil Capacity (oz) 48.0
Oil Filter Premium
Starter Electric Start
Air Filter Dual Element Cartridge with Advanced Debris Management
Muffler Optional
Certified Power Rating Download Power Curve

*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.
**All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.

HP (gross) ** 19.0
Engine Displacement (cc) 540
Number of Cylinders Single
Engine Configuration Vertical Shaft
OHV Engine Yes
Length (in) 18.9
Width (in) 16.2
Height (in) 12.9
Weight (lbs) 77
Bore (in) 3.7
Stroke (in) 3.06
Engine Fuel Gasoline
Fuel Tank Capacity (gal) N/A
Lubrication System Full Pressure Lubrication
Oil Capacity (oz) 48.0
Oil Filter Premium
Starter Electric Start
Air Filter Dual Element Cartridge with Advanced Debris Management
Muffler Optional
Certified Power Rating Download Power Curve

*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.
**All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.