Gravely ZT XL 42in 21.5HP Kawasaki Zero Turn Mower – Premium
Gravely ZT XL produces 21.5 horsepower. A 42-inch deck backs it up, and a Kawasaki engine drives it. Tight turning keeps trim work to a minimum. Zero-radius turns cut mowing time around trees and beds.
- Puts 21.5 horsepower behind every pass
- The deck spans a full 42 inches
- Kawasaki builds the engine inside it
- Built ground-up as a zero turn mower
- Turns tight around trees and flower beds
Description
Constructed with commercial-grade Hydro-Gear ZT-2800 transaxles, the Gravely ZT XL 42in 21.5HP Kawasaki zero turn mower bridges the gap between residential convenience and commercial durability. Standard residential zero-turn mowers feature sealed transmissions that cannot be serviced, leading to transmission replacements when fluid breaks down under heavy use. Gravely steps up this premium machine with serviceable Hydro-Gear ZT-2800 transaxles, an 11-gauge fabricated deck, and a 21.5HP Kawasaki FR651V engine engineered for demanding properties.
Hydro-Gear ZT-2800 transaxles incorporate spin-on oil filters and steel cut gears, delivering positive wheel torque up to 7.5 MPH forward transport speed. The deep 42-inch fabricated deck pulls air upward through the cutting chamber, discharging dense grass clippings uniformly across the lawn without windrowing. An adjustable high-back seat with padded armrests isolates the operator from harsh ground bumps, ensuring comfortable all-day mowing across uneven acreage.
Technical Specifications of Gravely ZT XL 42in
- 42-Inch Fabricated 11-Gauge Steel Deck: Welded plate steel construction with reinforced leading edges for long service life.
- 21.5HP Kawasaki Commercial V-Twin Engine: Supplies reliable combustion displacement to power through thick grass without RPM fade.
- Hydro-Gear ZT-2800 Serviceable Drives: Commercial transaxles feature spin-on filters and 1-inch axle shafts for long durability.
- Dial-Select Height Adjustment System: Sets cutting height precisely across 13 positions from 1.5 to 4.5 inches with a rotary dial.
- Plush High-Back Seat with Armrests: Thick foam cushioning and adjustable armrests provide comfort during long cutting sessions.
- Foot-Operated Mechanical Deck Lift: Adjusts cut heights quickly across distinct positions ranging from 1.5 to 4.5 inches.
- Large 20-Inch Rear Turf Tires: Wide drive tires distribute machine weight to prevent lawn compaction and wheel rutting on wet sod.
- High-Output Dual LED Headlights: Illuminates forward terrain for extended cutting visibility during early morning or dusk mowing.
Operational Reliability in Commercial Service
This premium zero-turn mower provides the commercial cut quality and transmission durability required for large country properties.
- Serviceable Hydro-Gear ZT-2800 transaxles allow routine fluid and filter maintenance, extending transmission life under heavy mowing loads.
- A fully fabricated 11-gauge deck structure resists dents and cracks from tree roots and yard debris far better than stamped steel.
- Front caster wheel bearings roll smoothly over rough ground while maintaining accurate deck leveling.
Machinery Compatibility & Chassis Mounting
Measuring 46 inches wide with the discharge chute raised and weighing 640 pounds dry, this mower navigates residential gates easily and fits inside standard residential garage bays.
Warranty Coverage & Preventive Maintenance
- Gravely provides a 4-Year or 400-hour limited warranty covering the chassis, transaxles, and fabricated cutting deck.
- The Kawasaki engine receives 3-Year limited warranty protection through authorized service centers nationwide.
Maintain peak performance by changing oil and filter every 50 hours with standard 10W-30 engine oil, cleaning the air filter cartridge weekly on dry routes, and checking the spark plug gap at 0.030 inches. Order the Gravely ZT XL 42in 21.5HP Kawasaki zero turn mower from Mulmotor.com for guaranteed factory-fresh units, complete manufacturer warranty coverage, and dedicated commercial equipment support.
Gravely ZT XL 42" Zero Turn (21.5HP Kawasaki) Specs
| Technical Parameter | Official Specification |
|---|---|
| Brand & Series | Gravely ZT XL Series |
| Full SKU/Model | 918012 (Kawasaki FR651V) |
| Country of Origin | USA |
| Engine Brand & Model | Kawasaki FR651V |
| Displacement (cc) | 726 cc |
| Horsepower/Torque | 21.5 HP at 3600 RPM |
| Fuel Capacity (Gallons/L) | 3.5 Gallons (13.2 L) |
| Oil Capacity & Recommended Grade | 2.1 qt (2.0 L) / SAE 10W-40 |
| Oil Filter OEM Part Number | Kawasaki 49065-7007 |
| Spark Plug Type & Gap | NGK BPR4ES / 0.030" |
| Air Filter Type | Dual Element Paper |
| Starting System | Electric Start |
| Transmission Model | Hydro-Gear ZT-2800 (Serviceable) |
| Transmission Oil Type | 20W-50 Synthetic Motor Oil |
| Max Forward Speed (mph/kmh) | 7.5 mph (12.1 km/h) |
| Max Reverse Speed (mph/kmh) | 3.0 mph (4.8 km/h) |
| Cutting Width (Inches) | 42 Inches |
| Deck Construction (Gauge & Type) | 11-Gauge Fabricated Steel |
| Cutting Height Range | 1.5" - 4.5" |
| Height Adjustment Positions | Dial-Operated / 13 Positions |
| Number of Blades | 2 Blades |
| Blade Tip Speed (fpm) | 17,000 fpm |
| Blade Bolt Torque (ft-lbs) | 115 ft-lbs |
| Spindle Housing Material | Forged Aluminum |
| Front Tire Size | 11 x 4-5 |
| Rear Tire Size | 20 x 8-10 |
| Seat Type & Suspension | Premium High-Back w/ Armrests & Springs |
| Dry Weight (lbs/kg) | 645 lbs (292 kg) |
| Commercial/Residential Warranty | 3-Year / 300-Hour Residential |
| SEO Usage Profile (Terrain & Max Acreage) | Residential; Premium Entry-Level; Up to 2.5 Acres |












Reviews
There are no reviews yet.