Cub Cadet Ultima ZT1 42 in. Zero Turn Riding Lawn Mower with 21.5 HP Kawasaki Engine

Overview

Engineered for residential lawns up to two acres, the Ultima ZT1 42 zero-turn mower combines commercial-grade precision steering with commercial power. Driven by a 21.5 HP Kawasaki FR651V twin-cylinder engine and built around a continuous 2-inch tubular steel chassis, this machine cuts mowing time in half with zero-turn maneuverability and forward speeds up to 7 mph. An AeroForce™ stamped cutting deck optimizes airflow to lift grass blades clean, delivering a carpet-smooth cut every pass.

• 21.5 HP Kawasaki FR651V V-Twin Engine: Renowned commercial-grade reliability, smooth torque delivery, and low vibration.

• 42-Inch AeroForce™ Cutting Deck: 11-gauge reinforced stamped steel deck maximizes clipping discharge and reduces clumping.

• Dual Hydro-Gear™ EZT-2200 Transmissions: Delivers fluid zero-turn maneuverability and variable speeds up to 7.0 mph forward / 3.5 mph reverse.

• Continuous 2″ Square Steel Frame: Automotive-grade, fully welded tubular chassis provides outstanding structural strength and durability.

• High-Back Ergonomic Seat: 20-inch contour-molded seat with advanced suspension springs and armrests for operator comfort across rough terrain.

In-Depth Product Overview

High-Torque Commercial Kawasaki Power

Under the rear cowl sits a heavy-duty 21.5 gross horsepower Kawasaki FR651V 4-stroke V-Twin engine. Designed with cast-iron cylinder liners, pressurized lubrication, and an overhead valve (OHV) configuration, this engine provides continuous high torque to power through thick, damp turf without losing blade tip speed.

AeroForce™ Deck Cutting Precision

The heavy-duty 42-inch dual-blade deck uses an engineered airflow tunnel that pulls grass upright before the cutting edges make contact. This produces an even, clean carpet finish while expelling clippings cleanly out of the side chute. A dial-in foot-assisted deck lift lets you select from 15 micro-increment cutting heights between 1.0 and 4.5 inches with minimal foot effort.

Heavy-Duty Tubular Chassis & Zero-Turn Agility

Unlike standard tractor frames stamped from thin sheet metal, the Ultima series utilizes a fully welded 2″ x 2″ continuous tubular steel frame coated in automotive-grade corrosion-resistant e-coat. Independent Hydro-Gear EZT-2200 hydrostatic drives on each rear drive wheel enable on-a-dime 360-degree zero-turn agility, allowing you to trace flower beds, trees, and fence corners cleanly without leaving uncut circles.

Automotive-Grade Ergonomics & LED Visibility

Operate in comfort during long mowing sessions. The operator cockpit features a 20-inch high-back seat cushioned by industrial suspension springs to absorb ground vibration. Adjustable dual-lap steering levers can be angled to fit operators of all sizes, while twin ultra-bright forward LED headlights extend mowing capability into early morning and twilight hours.

Technical Specifications