Simplicity 5901954

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EFI & ETC Commercial Series Engine

Electronic fuel injection (EFI) and electronic throttle control (ETC) are automotive-like features that deliver consistent starting and smooth operation no matter the cutting conditions. Plus the Briggs & Stratton® Commercial Series Engine has patented five-step integrated cyclonic air management to protect it from debris for extended engine life.


Simplicity offers comfortable commercial-style mowing with a front- and rear-wheel suspension system for increased mowing productivity. It also features a comfortable high back seat, adjustable steering levers, convenient controls and padded footrests.


The rugged fabricated mower deck is made from 11-gauge steel, with a reinforced top, side skirts, corners and a steel front edge to ensure durability and a quality cut for years to come. 


The easy-to-adjust, foot-operated, 16-position height-of-control can be moved in 1/4-inch increments and is clearly visible to the operator.


Every control is right at your fingertips: key switch, choke throttle, electric PTO switch for mower engagement, hour meter, cup holder and fuel gauge.


A smooth ride and a smooth cut. The pivoting front axle not only has ride-dampening front suspension shocks, but also supports the mower deck and allows it to follow the contours of the ground for a beautiful scalp-free lawn.


Designed for larger commercial application, the Hydro-Gear® ZT-3400® Transaxles are capable of delivering up to 225 ft.-lbs. of continuous torque delivering smooth, infinitely variable speed and bi-directional control in a durable integrated package.


Model 5901954
Marketing Model 27/52
Engine Brand Briggs & Stratton®
Engine Model Commercial Series EFI
Start Type Electric, Key
Power Rating 27
Cylinders 2
Choke/Throttle Separate Controls
Engine Displacement (cc) 810
Fuel Tank Capacity (gal) 5.5
Battery(cca) 350
Transmission Type Hydro-Gear® ZT-3400™
Ground Speed-Fwd (mph) 0-10
Ground Speed-Rev (mph) 0-5
Brake Internal
Frame 11-Gauge
Front Tires (in) 13 x 6.5 - 6 / 4-Ply Smooth
Front Axle Front independent with four cast-iron control rods paired with adjustable coil over shocks and a rear swing with adjustable coil over shocks
Rear Tires (in) 23 x 10.5-12 / 4 Ply Turf
Seat 18" Suspension High-Back
Suspension SCS, Front & Rear
Cutting Width (in) 52
Mower Deck Type Fabricated
Height-of-Cut (in) 1.5-5
Height-of-Cut Positions 16
Number of Blades 3
Blade Engagement Electric PTO Switch
Mower Deck Removal Frame Mounted
Anti-Scalp Wheels 2 - Front
Spindle Aluminum w/ Grease Zerk
Cargo Bed + N/A
Steering Twin Levers
Headlights Optional
Fuel Level Indicator Tank Gauge
Cup Holder Standard, 2
Bumper Steel
Roll Over Protection (ROPS) Standard, Folding
Assembled Width (in) 68
Assembled Height (in) 68
Assembled Length (in) 81
Assembled Weight (lbs) 1119