Details
| SPECIFICATIONS | 21 HP BRIGGS PRO SERIES | |
| Cutting Width | 4200 - 42" | |
| Cutting Height | 1"–4" with Deck Height Control System | |
| Blades | 4200 - 1/4" x 2 1/2" x 14 1/2", High Lift, Heat Treated | |
| Lift and Height Adjustment | Foot-Assist Lift | |
| Blade Belt | Single V-Belt Spring Tension | |
| Anti-Scalp Rollers | 2 Total (2 Front) | |
| Deck Flotation | Floats on 3 Leveling Linkages Along with 2 Anti-Sway Bars | |
| Deck Thickness | 1/8" Thick Solid Steel | |
| Engine | ||
| Gross Horsepower | 21HP Air-Cooled Briggs & Stratton | |
| Cylinders | Single Cylinder | |
| Displacement | 540 cc | |
| Maximum Torque | 28 ft. lbs. @ 2600 RPM | |
| Fuel Requirement | Unleaded Gasoline (87 Octane or higher) | |
| Fuel Capacity | 3 Gallons | |
| Fuel Filter | Replaceable Automotive Type | |
| Cooling System | Air-Cooled | |
| Ignition | Electronic | |
| Starter | 12 Volt | |
| Charging System | 16 amp | |
| Drive System | ||
| Transmission | Dual Integrated Hydrostatic Transaxle | |
| Pump Drive | Integrated Axial Piston Pump & Motor with Gear Reduction | |
| Wheel Drive | Integrated with Gear Reduction | |
| Hydrostatic System Oil | 20W50 Motor Oil | |
| Hydraulic Filter | - | |
| Pumps (2) | EZT Integrated Unit | |
| Hydraulic Coolers (2) | 7" Cooling Fan per Unit | |
| Dimensions | ||
| Weight | 4200 - 585 lbs. | |
| Overall Height | 42" | |
| Overall Width | 42" | |
| Overall Length | 67 3/4" | |
| Tire to Tire Width | Front 35", Rear 42" | |
| Tires - Front | 11 x 6–5 Smooth Tread | |
| Tires - Rear | 18 x 8.5–8 Turf Tread | |
| Steering | Dual Lever Steering, Independent Control | |
| Turning Radius | Zero Degree, Turns Within Unit Length | |
| Ground Speed (Forward) | 0-6 mph | |
| Parking Brake | External Cogg Brake |