| Manufacturer | Shibaura |
| Price | - |
| Model | SX21 |
| Equipment Type | Compact Utility Tractors |
| Factory | Matsumoto, Japan |
SHIBAURA SX21 POWER
| Engine | 21hp / 15.7kW |
| PTO (claimed) | 16hp / 11.9kW |
ENGINE DETAIL
The Shibaura SX21 features a compact 1.0L Diesel engine with a robust 21hp output at 3000 RPM, providing adequate power for tasks like small-scale farming and ground maintenance. Its high compression ratio of 24:1 contributes to fuel efficiency but may necessitate regular monitoring of valve clearances (0.008 inches) to maintain performance. Ideal for narrow spaces or residential applications, the SX21's manageable weight and size facilitate ease of maneuverability, though the limited power output may restrict heavy-duty tasks.
| Description | Shiabaura S753 diesel 3-cylinder liquid-cooled |
| Displacement | 58.2ci / 1.0L |
| Bore/Stroke | 2.953x2.835inches / 75x 72 mm |
| Power | 21hp / 15.7kW |
| Compression | 24:1 |
| Rated RPM | 3000 |
| Idle RPM | 1300-3200 |
| Firing order | 1-2-3 |
| Starter volts | 12 |
| Starter power | 1.6hp / 1.2kW |
| Oil capacity | 3.5qts / 3.3L |
| Coolant capacity | 3.7qts / 3.5L |
| Intake valve clearance | 0.008inches / 0.203 mm |
| Exhaust valve clearance | 0.008inches / 0.203 mm |
SHIBAURA SX21 ENGINE
The Shibaura SX21 tractor, equipped with a 1.0L 3-cylinder diesel engine, offers efficient fuel consumption suited for small to medium agricultural tasks. With a 7.8-gallon (29.5L) fuel tank, it facilitates extended operation without frequent refueling, enhancing productivity. However, the compact engine size may limit power output for heavier machinery and demanding tasks, so it's ideal for lighter duties such as gardening or small estate maintenance.
| Description | Shiabaura 1.0L 3-cyl diesel |
| Fuel tank | 7.8gal / 29.5L |
TRANSMISSION
The Shibaura SX21 tractor features a hydrostatic transmission that offers infinite forward and reverse gears, providing smooth operation and ease of maneuverability, ideal for tight spaces or variable terrains. With an oil capacity of 13.75 quarts (13.0 liters), it requires diligent maintenance to ensure proper lubrication and cooling, which is crucial for maximizing engine longevity and performance. The hydrostatic design is advantageous for tasks needing precision control, but may present challenges in efficiency for heavy-duty applications compared to gear-driven counterparts.
| Type | hydrostatic |
| Gears | infinite forward and reverse |
| Oil capacity | 13.75qts / 13.0L |
SPEEDS
| Description | With 26x12.00-12 rear tires |
MECHANICAL
The Shibaura SX21 features a 4x4 MFWD system, providing excellent traction and stability for varied terrain, which is advantageous for agricultural applications. Its power steering enhances maneuverability, especially in tight spaces, while the hydrostatic transmission allows for smooth operation and precise speed control, reducing strain on the operator during prolonged use. However, the reliance on hydrostatic components may lead to increased maintenance costs over time, requiring regular checks for hydraulic fluid and filters.
| Chassis | 4x4 MFWD 4WD |
| Steering | power |
| Brakes | wet disc |
| Transmission | hydrostatic |
HYDRAULICS
| Type | open center |
| Pressure | 1885psi / 130.0bar |
| Valves | 1 |
| Pump flow | 3.75gpm / 14.2lpm |
| Steering flow | 1.85gpm / 7.0lpm |
TRACTOR HITCH
| Rear Type | I |
| Rear lift (at 24 | 701lbs / 317kg |
POWER TAKE-OFF (PTO)
| Rear PTO | live |
| Rear RPM | 540 (1.375) |
| Engine RPM | 2200@3020 |
| Mid PTO | standard |
| Mid RPM | 2200 |
SHIBAURA SX21 TIRES
The Shibaura SX21 features versatile tire sizes, allowing for both agricultural (Ag) and lawn/turf applications, optimizing traction and stability across varying terrain. The Ag front and rear tire combinations provide adequate ground engagement for farming tasks, while the larger turf tires ensure reduced soil compaction and smooth operation on lawns. Choosing the right tire configuration based on the primary use (agricultural vs. turf maintenance) will enhance performance and longevity of the tractor in respective scenarios.
| Ag front | 4.00-9 |
| Ag rear | 7-14 |
| Lawn/turf front | 18x8.50-8 |
| Lawn/turf rear | 26x12.00-12 |
DIMENSIONS
| Wheelbase | 55.1inches / 139cm |
| Length | 98inches / 248cm |
| Width | 43.3inches / 109cm |
| Weight | 1530lbs / 694kg |
| Ground clearance | 9.1inches / 23cm |
| Front tread | 35.8inches / 90cm |
| Rear tread | 35.8inches / 90cm |
SHIBAURA SX21 HEIGHT
| Steering wheel | 50.2inches / 127cm |
| Hood | 44.5inches / 113cm |
| ROPS | 90.1inches / 228cm |
DIMENSIONS & TIRES
The Shibaura SX21 features a compact wheelbase of 55.1 inches, enhancing maneuverability in tight spaces, making it ideal for landscaping and small-scale farming. With a curb weight of 1530 lbs, it offers a favorable power-to-weight ratio, which can improve traction and efficiency on various terrains. However, tire sizes may limit its performance in challenging conditions; the front 4.00-9 tires are suitable for light loads, while the rear 7-14 tires provide better stability for heavier tasks.
| Wheelbase | 55.1inches / 139cm |
| Weight | 1530lbs / 694kg |
| Front tire | 4.00-9 |
| Rear tire | 7-14 |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 40 |
| Battery volts | 12 |