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550Z Zero Turn Riding Mower

Professional-grade 550Z zero turn riding mowers are easy-to-use for homeowners but come packed with all of the enhanced features you'd expect from a commercial zero turn mower. With welded, all-steel construction and Hydro-Gear® ZT-3100® transaxles, the 550 zero turn riding mower has the rugged durability needed to take on demanding terrain and tough jobs. Powered by a premium Briggs & Stratton Commercial Series or Kawasaki® FR730V engine, the 550Z mows grass in no time with a wide 52" or 61" mower deck and speeds up to 8 MPH.

Product Ratings

  • Zero Turn Mower Transmission
    Durable Hydro-Gear® Transaxles

    Built for high-performance applications, the Hydro-Gear® ZT-3100® hydrostatic transaxles deliver a smooth grass cutting experience while you are changing directions and speeds.

  • Heavy Duty Mower Deck
    Fast Mowing

    Wide, heavy-duty 52” or 61” fabricated mower decks cuts grass in no time with speeds up to 8 mph. Not to mention, our fabricated mower decks are backed by a limited-lifetime warranty*.

  • Grass Cut Height Adjustment
    Simple Height-of-Cut

    Convenient deck-lift easily adjusts grass cut height from 1.5" to 4.5".

  • Service Friendly Mowers

    Access to the top of the deck via removable panel for service-friendly mower maintenance.

  • Briggs & Stratton Engine
    High-Performance Briggs & Stratton Engine

    Built for harsh zero turn mowing conditions, the Briggs & Stratton® Commercial Series Engine has what it takes to perform including an advanced debris management system and beefed up cylinder block.

  • Kawasaki Mower Engine
    Powerful Kawasaki® Engine

    Built for power, the Kawasaki® FR Series Engine offers smooth power output and outstanding durability in a compact design.

  • Zero Turn Mower Control Panel
    Intuitive Controls

    Easy-to-use lawn mower controls, including a fuel-level indicator, are all conveniently located within hand's reach.

  • Zero Turn Mower Frame
    Strong Mower Frame

    Just because you don't mow the lawn for a living doesn't mean you can't appreciate commercial mower quality from the heavy-duty, welded construction and steel front axle to an all-steel, wrap-around engine enclosure.

*See operator’s manual or dealer for complete warranty details.

MODEL 550z - 24/52 550z - 25/52 550z - 24/61 550Z - 25/61
SELECT MODEL Compare Compare Compare Compare
Engine Brand Kawasaki Briggs & Stratton Kawasaki Briggs & Stratton
Model FR730V, V-Twin OHV Commercial Series, V-Twin, OHV FR730V, V-Twin, OHV Commercial Series, V-Twin, OHV
Gross Horsepower 24* 25** 24* 25**
Engine Displacement (cc) 726 724 726 724
Cylinders 2 2 2 2
Choke/Throttle Separate Controls Separate Controls Separate Controls Separate Controls
Fuel Tank Capacity (U.S. Gallons) 5.5 5.5 5.5 5.5
Battery (cca) 300 300 300 300
Type Hydro-Gear® ZT-3100® Hydro-Gear® ZT-3100® Hydro-Gear® ZT-3100® Hydro-Gear® ZT-3100®
Forward Speed (mph) 0-8 0-8 0-8 0-8
Reverse Speed (mph) 0-4 0-4 0-4 0-4
Brakes Internal Internal Internal Internal
Frame 11-Gauge Welded 11-Gauge Welded 11-Gauge Welded 11-Gauge Welded
Front Axle Steel, Fixed Steel, Fixed Steel, Fixed Steel, Fixed
Front Tires (inches) 13 x 5 13 x 5 13 x 5 13 x 5
Rear Tires (inches) 20 x 10 20 x 10 20 x 10 20 x 10
Seat 18" High-back, Adjustable 18" High-back, Adjustable 18" High-back, Adjustable 18" High-back, Adjustable
Number of Anti-Scalping Wheels 4 Front 4 Front 4 Front 4 Front
Steering Twin-lever Twin-lever Twin-lever Twin-lever
Deck Type Fabricated Steel Fabricated Steel Fabricated Steel Fabricated Steel
Cutting Width (inches) 52 52 61 61
Number of Blades 3 3 3 3
Height-of-Cut Range (inches) 1.5-4.5 1.5-4.5 1.5-4.5 1.5-4.5
Height-of-Cut Positions 12 12 12 12
Blade Engagement Electric Electric Electric Electric
Deck Thickness 10-Gauge 10-Gauge 10-Gauge 10-Gauge
Deck Suspension Frame Hung Frame Hug Frame Hung Frame Hung
Spindles Aluminum Aluminum Aluminum Aluminum
Mower Deck Lift Mechanical, Foot Operated Mechanical, Foot Operated Mechanical, Foot Operated Mechanical, Foot Operated
Cargo Bed† N/A N/A N/A N/A
ROPS (Roll Over Protective Structure) Standard Standard Standard Standard
Rear Bumper Standard Standard Standard Standard
Hour Meter Standard Standard Standard Standard
Cup Holder Standard Standard Standard Standard
Fuel Level Indicator Standard Standard Standard Standard
Armrest Optional Accessory Optional Accessory Optional Accessory Optional Accessory
Assembled Length (inches) 78 78 78 78
Assembled Width (inches) 63 63 63 63
Assembled Height (inches) 66 66 66 66
MAP (Minimum Advertised Price) $5,099 $4,899 $5,199 $4,999
Residential Use 3-Years 3-Years 3-Years 3-Years
Commercial Use 90-Days 90-Days 90-Days 90-Days
Fabricated Mower Deck Lifetime Lifetime Lifetime Lifetime

*Only Kawasaki Critical Power engines listed in this brochure have been tested in accordance with SAE J1995, verified by TÜV Rheinland Group, horsepower-rated in accordance with SAE J2723, and certified by SAE International. Torque ratings of these engines were not certified by SAE. Actual power and torque output will vary depending on numerous factors, including, but not limited to, the operating speed of the engine in application, environmental conditions, maintenance, and other variables.
**All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.
†50 lb. capacity, do not overload; do not carry passengers. Available on most models. See operator’s manual for details.
^Suggested prices will vary by market. Prices in U.S. dollars. Set-up, delivery, documentation, and destination fees not included. See dealer for details. Features vary by model. We reserve the right to change specifications, features and pricing without notice.
† See operator's manual or dealer for complete warranty details. Length of engine warranty coverage varies by manufacturer.

Triple Grass Catcher
Triple Grass Catcher

Collect up to 10-bushels of clippings into three easy-to-empty grass bags.

Turbo Collector
Turbo Blower

Easily attaches to lawn mower and gets power directly from the engine. The blower pushes lawn clippings and debris into a grass bagger for a cleaner cut.

Flat Free Caster Tire Assembly
Flat Free Caster Tire Assembly

Replace the caster tires with this flat free caster assembly, and eliminate the possibilty of a hassle and down time caused by a flat tire.

Zero Turn Headlight Kit

Improve your visibility while cutting the grass during evening hours with the front headlight kit for your zero turn mower.

arm rest kit
Arm Rest Kit

Ride more comfortably with our easy-to-install arm rest kit for zero turn mowers.

Note: Attachments for prior year models and additional attachments or accessories not shown may be available.
Some attachments require additional installation components (i.e. front weights for a catcher). Please see dealer for details.

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