The IS® 4500Z series provides you with pure mowing performance. Available with your choice of diesel or gasoline engine options, the IS® 4500Z features our patented suspension system. The 72" option is paired with a powerful 35-hp Briggs & Stratton Vanguard™ BIG BLOCK™ liquid-cooled engine. Folding Roll Over Protection System (ROPS) is a standard feature with a retractable seat belt. There is not another product in its class that can match the power and performance of the IS® 4500Z.

ENGINE GROUP
• 35-hp Vanguard BIG BLOCK liquid-cooled gasoline engine. 28-hp Caterpillar
  diesel engine.
• Two-stage industrial air-cleaner.
• Rugged twin 7.5-gallon fuel tanks (15-gallons total)
• MOWER DECK Available in 61" or 72" cutting width.
• Cut height: 1.5"- 6" adjusts in 1/4" increments.
• Hercules™ cast-iron mower spindles.
• Adjustable, 360° anti-scalp rollers.

SUSPENSION / CHASSIS
• Patented four-wheel suspension system dramatically increases quality of cut over competitive
  fixed frame units.
• Industry leading 1/4" thick tubular steel frame rails. 

OPERATOR CONTROL & COMFORT SYSTEMS
• Expanded operator compartment includes ergonomic control panels featuring a cup-holder, cell
  phone pocket, 12-volt outlet and storage compartment. 
• Deluxe high back seat with added lumbar support. 
• Folding Roll Over Protection System (ROPS) with retractable seat belt.
• Optional heavy duty integrated rear bumper for engine compartment protection. 
• Environmentally-friendly sound package absorbs and reduces engine noises for improved
  operator and bystander comfort.