Exmark Vertex S-Series 48

If you're managing three to five acres of turf professionally — or maintaining a large property where a sit-down zero-turn feels like overkill — the Exmark Vertex S-Series deserves a serious look. This stand-on zero-turn pairs a 23.5 HP Kawasaki FX730V engine with a 48" UltraCut Series 4 deck, covering ground at up to 8.5 mph. That works out to roughly 3.29 acres per hour under real-world conditions — enough to make a full day's work feel shorter.

The Vertex S-Series was designed with mass centralized low in the chassis. That matters on uneven ground: better stability under your feet without sacrificing the tight turning radius zero-turns are known for. The wide open platform gives you room to shift your stance during long sessions, which your legs and lower back will appreciate by hour three.

The ergonomic control panel puts the key, choke, throttle, and height-of-cut adjustment all within easy reach. No reaching, no hunting. Hop on and go. The single-point height-of-cut adjustment lets you change deck height quickly without tools — useful when you're switching between properties or turf types mid-day.

The UltraCut Series 4 deck is formed and welded from high-strength steel, with maintenance-free spindles and splined blade drivers that prevent bolt loosening on impacts — a real-world feature that matters when you're hitting the occasional hidden rock or root. Anti-scalp rollers and easy rake adjustment help maintain a consistent finish across uneven terrain, which is exactly what you're dealing with in Pacific Northwest conditions.

The 8-gallon fuel tank keeps interruptions to a minimum. More time mowing, fewer trips to the fuel can.

Exmark built serviceability into the Vertex from the start. Engine and hydro drive components are accessible without tools, and the single-belt drive system keeps maintenance straightforward. Spherical idler bearings require only annual lubrication. These aren't flashy features, but they're the kind of details that keep a commercial machine running season after season.

The Kawasaki FX730V is a proven carbureted V-Twin — heavy-duty canister air filtration, pressurized lubrication, and a track record in daily commercial use. If you prefer fuel efficiency, this model is also available with a Kohler EFI engine.

Ideal For:

• Landscape contractors running multiple properties per day
• Large residential or commercial property owners who want a faster, more nimble machine than a traditional zero-turn
• Properties with varied terrain where maneuverability and stability both matter
• Operators who value simple, low-maintenance equipment in daily professional use

Key Specifications:

• Engine: 23.5 HP Kawasaki FX730V V-Twin
• Cutting width: 48" (also available in 52" and 60")
• Deck: UltraCut Series 4 side discharge, high-strength steel
• Ground speed: up to 8.5 mph
• Cutting height range: 1.5"–5.0"
• Fuel capacity: 8 gallons
• Productivity: ~3.29 acres/hour
• Coverage range: 3–5 acres