991274

Gravely 991274 ZT HD 48 Zero Turn Mower | 25HP Kohler

The Gravely ZT HD 48 (Model 991274) is a heavy-duty residential zero-turn mower with commercial-grade engineering, built for homeowners who want maximum durability, strong cutting performance, and long service life. Powered by a 25HP Kohler 7000 HD V-Twin engine, this model delivers reliable torque, smooth operation, and consistent power for demanding lawn conditions.

Equipped with a 48-inch fabricated X-Factor® steel deck and a reinforced tubular steel frame, the ZT HD 48 is designed to handle thick grass, uneven terrain, and frequent mowing schedules while maintaining a clean, professional-quality cut.

Key Features

- Powerful 25HP Kohler 7000 HD V-Twin engine
- Durable 48-inch fabricated X-Factor® III steel cutting deck
- Heavy-duty Hydro-Gear ZT-3100 commercial-style transmissions
- Fully welded tubular steel frame for maximum rigidity
- Electric PTO blade engagement
- Foot-operated deck lift system for easy height adjustment
- High-back comfort seat with armrests
- Large rear tires for traction and stability
- Designed for residential + heavy-duty use
- Built with commercial-inspired durability

Applications

The Gravely ZT HD 48 is ideal for:

- Large residential lawns
- Properties with slopes and uneven ground
- Homeowners upgrading from lawn tractors
- Acreage up to ~1–4 acres depending on conditions
- Frequent mowing schedules
- Users wanting near-commercial durability

Performance Benefits

Strong 25HP Kohler Power

The Kohler 7000 HD engine delivers dependable starting, strong torque, and steady blade speed, helping maintain cut quality in thick or damp grass.

Fabricated X-Factor® Deck

The 48-inch fabricated deck improves airflow and cutting efficiency, producing a cleaner and more even finish than stamped decks.

ZT-3100 Commercial-Style Drives

The Hydro-Gear ZT-3100 transaxles provide better durability, smoother control, and improved slope performance compared to entry-level systems.

Reinforced Frame Construction

A fully welded tubular steel frame increases strength and reduces flex under load, improving long-term durability.

Comfort for Extended Mowing

Ergonomic seating and vibration isolation help reduce fatigue during longer mowing sessions.