Specifications
ENGINE (18.5HP *):
Make
Briggs & Stratton
Model
Professional Series
Gross Horsepower * 18.5
Displacement 500cc
ENGINE (21HP *):
Make
Briggs & Stratton
Model
Professional Series
Gross Horsepower * 21
Displacement 540cc
CHASSIS:
Fuel Tank Cap.
Capacity: 3.00 Gallons (11,4 L)
Rear Wheels
Tire Size: 18 x 8.5
Inflation Pressure: 10-12 psi (,69-,83 bar)
Front Wheels
Tire Size: 11 x 4
Inflation Press.: 18-20 psi (1,24-1,30 bar)
TRANSMISSION:
Type
Hydro-Gear EZT
Hydraulic Fluid
20w 50 Premium Engine Oil
NOTE: Specifications are subject to change without notice.
* Power Rating
The gross power rating for individual gas engine models is labeled in accordance with SAE (Society of Automotive
Engineers) code J1940 (Small Engine Power & Torque Rating Procedure), and rating performance has been obtained
and corrected in accordance with SAE J1995 (Revision 2002-05). Torque values are derived at 3060 RPM; horse-
power values are derived at 3600 RPM. The gross power curves can be viewed at www.BRIGGSandSTRATTON.
COM. Net power values are taken with exhaust and air cleaner installed whereas gross power values are collected
without these attachments. Actual gross engine power will be higher than net engine power and is affected by, among
other things, ambient operating conditions and engine-to-engine variability. Given the wide array of products on which
engines are placed, the gas engine may not develop the rated gross power when used in a given piece of power
equipment. This difference is due to a variety of factors including, but not limited to, the variety of engine components
(air cleaner, exhaust, charging, cooling, carburetor, fuel pump, etc.), application limitations, ambient operating condi-
tions (temperature, humidity, altitude), and engine-to-engine variability. Due to manufacturing and capacity limitations,
Briggs & Stratton may substitute an engine of higher rated power for this Series engine.
Not
for
Reproduction