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Scag SWZU Ultimate Hydro Drive Walk Behind

The Scag SWZU
Ultimate Hydro-Drive Walk-Behind

The Scag "Ultimate" Zero Turn Walk Behind Mower is the "Ultimate" in quality, dependability and performance.

With an easily adjustable, floating Advantage™ or Velocity Plus™ cutter deck, you can change cutting heights from 1" to 4-1/2", in the field, with no tools required. The self-adjusting, spring-loaded belt systems save you time and repair costs by effortlessly keeping the belts in perfect adjustment.

The "Adjust-A-Trac" feature allows instant neutral and tracking adjustment in the field, for the "Ultimate" in maintenance ease. A pump release disengages the hydraulic pumps for easier starting in cold climates.

Limited availability -- Contact your local Scag dealer for more information.

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  • 36", 48" or 52" floating cutter deck options
  • Powerful engine options from 16hp to 19hp
  • Dual hydraulic pump drive system
  • Heavy gauge handlebars and frame for durability
Split steel pulleys
6-Gallon Fuel Tank
Adjust-A-Trac Tracking Adjustment
Self-adjusting belt systems
Self-adjusting belt systems
Split steel pulleys
Split steel pulleys
De-clutch cold start system
Cold Start System
  • Heavy-duty hydraulic drive system includes dual 10cc Hydro-Gear pumps and Ross hydraulic motors for reliable, Zero Turn maneuverability.
  • Your choice of engines, including a 16hp, 17hp, or 19hp Kawasaki KAI engine.
  • Easy engine oil drain makes maintenance clean and simple.
  • Choose from a 36" Advantage™, or a 48" or 52" Velocity Plus™ cutter deck. Scroll down for a complete list of engine and cutter deck combinations.
  • Floating Advantage or Velocity Plus cutter deck contours to uneven terrain and allows you to quickly change cutting heights in the field with no tools (1" to 4-1/2").
  • Heavy-duty blade drive spindles provide unbeatable performance.
  • Rear push arms on back of deck allow for easier height-of-cut changes and increased durability.
  • Convenient dash panel puts the controls at your fingertips, including forward speed lever, parking brake lever, key switch, throttle, electric blade brake switch and optional hour meter.
  • "Adjust-A-Trac" feature allows instant neutral and tracking adjustment in the field for the "Ultimate" in control.
  • Large 6 gallon, rust-free fuel tank keeps you in the field cutting. This tank design is 20% larger than tanks on other mower brands. Molded-in cup holder provides added operator convenience and comfort.
  • De-clutch cold start feature enhances cold weather starting by removing the load of the hydraulic pumps at startup.
  • Ogura PTO clutch brake engages the cutter blades. Adjustable airgap ensures long component life.
  • Oversize caster and drive tires make curb climbing and trailer loading easy.
  • Extra durable front caster arms are designed to handle rough environments.
  • Heavy-duty Flat-Free caster wheels with quick pin removal for easy maintenance and cutting height adjustments. Semi-pneumatic tire design virtually eliminates downtime and expense resulting from flat front tires.
  • Heavy gauge handlebars are adjustable to provide additional comfort for taller operators. Handlebars have three height settings and fit a wide variety of operators.
  • Redesigned handlebars allow for more comfortable operation, with reduced handlebar diameter and adjusted steering lever angle. Twin hand controls with spring assisted EZ-GRIP allows for smooth, precise responsiveness. EZ-GRIP reduces the amount of hand force required to operate the mower for increased operator comfort.
  • Operator presence controls are vinyl-dipped and designed for operator comfort.
  • "Split-Steel" pulley design is stronger than cast iron or stamped pulley designs. They are precision matched and lightweight for reduced inertia and decreased wear on the cutter deck drive system.
  • High-quality bearings and bearing debris guard on idler pulleys ensure long, reliable service.
  • Tapered lock hubs on hydro pump pulleys provide added reliablilty and ease of service.
  • Self-adjusting belt idlers on all belt systems eliminate belt adjustments and reduce downtime by adding life to the belts.
  • Double stacked roller bearing in cutter deck idler pulley adds to reliability.
  • Marbain cutter blades stay sharp longer for reduced maintenance.
  • User-friendly design allows quick, clean access to the engine and filters, for easy maintenance.
  • The Scag "Simply the Best" commercial warranty stands behind you and your mower for years of profitable service.
  • There are many time saving, money making accessories for the SWZU Walk Behind like grass collection systems.
SWZU36A-16KAI** 36" Advantage Cutter Deck, 16hp Kawasaki KAI air-cooled engine
SWZU48V-17KAI** 48" Velocity Plus Cutter Deck, 17hp Kawasaki KAI air-cooled engine
SWZU52V-17KAI** 52" Velocity Plus Cutter Deck, 17hp Kawasaki KAI air-cooled engine
SWZU52A-19KAI** 52" Velocity Plus Cutter Deck, 19hp Kawasaki KAI air-cooled engine

* Subject to availability. Contact your local Scag Dealer.
** Limited availability. Contact your local Scag dealer for specific availability information.

SWZU - Product Dimensions 36" SWZU 48" SWZU 52" SWZU
Length 77.5" 78" 79"
Width (chute down) 47" 60.5" 64.5"
Width (chute in transport position) 37" 49" 53"
Weight: 595 lbs. 650 lbs. 660 lbs.

*** Dimensions are subject to change.
TESTIMONIALS (click here for more customer comments)top of page
Patrick Faccia,
Owner of P. Faccia Landscape Contractors LLC, Chatham NJ
"Quality of cut, ease of maintenance, durability, reliability is what Scag means to me. I've had them all and Scag is the only mower I still have since we started our business. I can depend on it working every day."
Mitch Geonini,
Owner of Geonini Landscaping, Lindenhurst, Long Island NY
"Scag hydro walks can take the use and abuse of our employees! If they will last on my crews, they'll last for anybody in the business. We mow 100 yards a day with a minimum to no downtime!"
James "Butch" Vaughan, Landscape Maintenance Manager for Rocky Fork Company,
New Albany OH
"We have been using Scag mowers for the last nine years and we have found them to be the most durable mowers in our inventory with quality and dependability second to none."