Gold Series™


A reliable classic mower engine built to take care of the classic American lawn. Craftsman Exclusive single-cylinder Gold Series™ engines give you the power to handle medium-duty mowing and hauling. This riding lawn mower engine features our unique OHV (OverHead Valve) technology for a cleaner, cooler engine, these engines are rugged workhorses that are ready for duty time after time.


Riding Lawn Mower Engine Reviews

Product Details


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.

Anti-Vibration System - AVS®

Provides a smoother ride and more comfort.

Advanced Debris Management System

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

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

Full Pressure Lube System

Cooler operation and longer life.

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.

Gold Series™
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) 65
Bore (in) 3.56
Stroke (in) 3.06
Engine Fuel Gasoline
Fuel Tank Capacity (gal) N/A
Lubrication System Pressure Lubrication
Oil Capacity (oz) 48.0
Oil Filter Standard
Starter Electric Start
Air Filter Cartidge Air Cleaner with Advanced Debris Managment
Muffler No
Certified Power Rating Download Power Curve
Marketing Model 31R9

*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.


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