- Dimensions
- Tire Sizes
- Weight
- Engine Details
- Operational Specs
- Transmission
- PTO (Power Take-Off)
- Hydraulic System
- 3-Point Hitch (Optional)
- Service Refill Capacities
- Lubricants
- Kubota BX23S Attachments
- Kubota LA340 Front Loader
- Kubota BT603 Backhoe
- Backhoe Bucket Sizes
- Mid-mount Mower Decks
- Easy-Over Mowers
- Implement Limitations
The Kubota BX23S Sub-Compact Tractor Loader Backhoe (TLB) is widely regarded as one of the most capable and versatile machines in its class. Combining a powerful 21.6-horsepower diesel engine, durable 4WD drivetrain, and factory-installed front-end loader (LA340S) and backhoe (BT603), it delivers impressive digging, lifting, and material-handling capabilities in a compact footprint.
Dimensions
| Overall Length (w/o 3P hitch, w/ front guard) | 87 in (2210 mm) |
| Overall Length (w/ 3P hitch, w/ front guard) | 99 in (2515 mm) |
| Overall Width | 45.1 in (1145 mm) |
| Wheelbase | 55.1 in (1400 mm) |
| Overall Height (w/ ROPS) | 86.2 in (2190 mm) |
| Overall Height (Top of Seat) | 49.8 in (1265 mm) |
| Ground Clearance | 5.83 in (148 mm) |
| Front Tread | 36.6 in (930 mm) |
| Rear Tread | 32.2 in (820 mm) |
| Turning Radius | 90.6 in (2300 mm) |
Tire Sizes
| Front Tire Size (Turf) | 18×8.5-10 |
| Rear Tire Size (Turf) | 26×12-12 |
| Front Tire Size (Industial) | 18×8.5-10 |
| Rear Tire Size (Industrial) | 26×12-12 |
Weight
| Operating Weight (Open Station) | 1600 lb (725 kg) |
| Weight wtih Loader and Backhoe (LA340S + BT603) | 2685 lb (1217 kg) |
| Kubota LA340S Loader (include 48″ bucket) | 478 lb (217 kg) |
| Kubota BT603 Backhoe (include 12″ bucket) | 607 lb (275 kg |
| Implement as Counterweight (Backhoe) | 586 lb (266 kg) |
| Implement as Counterweight (Box Blade or Rear Blade or Rotary Tiller or Ballast Box) | 420 lb (190 kg) |
| Liquid Weight Per Tire, 26×12.00-12 (75% filled) | 99 – 123 lb (45 – 56 kg) |
| Max Front Ballast / Counterweight | 275 lb (125 kg) |
| Optional Rear Wheel Ballast (each) | 51 lb (23 kg) |
| Engine Weight (Dry) | 159 lb (72 kg) |
Engine Details
| Number Of Cylinders | 3 |
| Engine Make | Kubota |
| Engine Model | D902-E4B |
| Displacement | 54.8 cu in (0.898 L) |
| Bore | 2.83 in (72 mm) |
| Stroke | 2.9 in (73.6 mm) |
| Gross Horsepower | 21.6 hp (16.1 kw) |
| PTO Power | 17.7 hp (13.2 kw) |
| Power Measured @ | 3200 rpm |
| Max Torque | 41.4 lb ft (56.1 Nm) |
| Torque Measured @ | 2600 rpm |
| Combustion System | Indirect injection |
| Fuel System | In-line pump |
| Cooling System | Liquid-cooled |
| Aspiration | Naturally Aspirated |
| Emission Standards | US EPA/CARB Tier 4 (NRTC/NTE test mode) + EU Stage V |
Operational Specs
| ROPS | Open operator station with foldable ROPS |
| Operating Voltage | 12 V |
| Alternator | 40 amps |
| Battery | 12 V, CCA 560, RC: 86 min |
| Starter | 12 V, 1.9 hp (1.4 kw) |
| Drive | 4WD |
| Differential Lock | The differential lock is maintained only while the differential-lock-pedal is depressed |
| Service Brakes | Wet disk type |
Transmission
| Type | Hydrostatic transmission, HST |
| Number of Gears | High-Low gear shift (2 forward / reverse) |
| Max Forward Speed | 9.0 mph (14.5 km/h) |
| Max Reverse Speed | 6.2 mph (10.0 km/h) |
| Steering | Hydrostatic Power Steering |
PTO (Power Take-Off)
| PTO Type | Live independent PTO (with hydraulic clutch) |
| PTO Power | 17.7 hp (13.2 kw) |
| Rear PTO Speed | 540 |
| Rear PTO Size | 1.875 in, 6 splines |
| Mid PTO Speed | 2500 |
| Mid PTO Size | Involute spline SAE No. 5 (KUBOTA 10-tooth) |
Hydraulic System
| Hydraulic Control System | Directional control, auto-return lever system |
| Main Pump Flow | 6.21 gal/min (23.5 L/min) |
| System Pressure | 1790 to 1850 psi (12300 to 12800 kPa) |
| Number of Rear Remote Valves (Optional) | 2 valves. Coupler ISO 7241-1 series A |
| Number of Front Remote Valves (Optional) | 2 valves. Coupler (fitting) ISO 7241-1 series B |
3-Point Hitch (Optional)
| 3-Point Hitch Type | SAE Category 1 (Optional) |
| 3 Point Hitch Lift Capacity @ 24 in | 680 lb (310 kg) |
| 3 Point Hitch Lift Capacity @ Ends | 1210 lb (550 kg) |
Service Refill Capacities
| Fuel Tank Capacity | 6.6 gal (25 L) |
| Engine Oil Capacity (w/ Filter) | 0.9 gal (3.3 L) |
| Cooling System Capacity | 0.8 gal (3.1 L) |
| Hydraulic / Transmission Oil Capacity | 3.0 gal (11.3 L) |
| Recovery Tank Capacity | 0.1 gal (0.4 L) |
| Front Axle Case Capacity | 0.95 gal (3.6 L) |
| Mid-Mount Mower RCK54D-26BX Gearbox | 0.1 gal (0.36 L) |
| Mid-Mount Mower RCK60D-26BX Gearbox | 0.1 gal (0.36 L) |
Lubricants
| Engine Oil, Above 25° C (77° F) | SAE 30, SAE 10W-30 or 15W-40 |
| Engine Oil, -10 ℃ to +25 ℃ (14 ℉ to 77 ℉) | SAE 20, SAE 10W-30, or 15W-40 |
| Engine Oil, Below -10 ℃ (14 ℉) | SAE 10W, SAE 10W-30, or 15W-40 |
| Hydrostatic Transmission Oil | Kubota Super UDT-2 fluid |
| Front Axle Case | Super UDT-2 fluid or SAE 80 – 90 gear oil |
Kubota BX23S Attachments
The Kubota BX23S is a versatile sub-compact tractor-loader-backhoe (TLB) that excels in both residential and commercial applications thanks to its compatibility with a wide range of attachments. Built on Kubota’s durable BX80 Series platform, the BX23S combines power, maneuverability, and ease of use for tasks such as digging, mowing, landscaping, and light construction work.
Its quick-attach implements, including the LA340 front loader, BT603 backhoe, and RCK54D-26BX or RCK60D-26BX mid-mount mower decks, ensure efficient changeovers between jobs.
Kubota LA340 Front Loader
The Kubota LA340 and LA340S are front loaders specifically designed for the Kubota BX Series compact tractors, offering powerful performance in a compact frame. While both models share the same lifting geometry and maximum lift height of 71.0 inches (1804 mm), they differ in the mounting system.
| Model | Kubota LA340 | Kubota LA340S |
|---|---|---|
| A. Max. Lift Height (to bucket pivot pin) | 71.0 in (1804 mm) | 71.0 in (1804 mm) |
| B. Max. Lift Height (under level bucket) | 65.4 in (1662 mm) | 65.5 in (1664 mm) |
| C. Clearance with Bucket Dumped | 52.1 in (1323 mm) | 50.7 in (1288 mm) |
| D. Reach at Max Lift Height (dumping reach) | 25.4 in (646 mm) | 26.5 in (677 mm) |
| E. Max. Dump Angle | 45 deg. | 45 deg. |
| F. Reach with Bucket on Ground | 54.8 in (1392 mm) | 56.6 in (1438 mm) |
| G. Bucket Roll-back Angle | 29 deg. | 29 deg. |
| H. Digging Depth | 4.9 in (125 mm) | 4.8 in (122 mm) |
| J. Overall Height in Carrying Position | 39.0 in (990 mm) | 39.0 in (990 mm) |
| U. Lift Capacity (bucket pivot pin, max. height) | 739 lbs (335 kg) | 613 lbs (278 kg) |
| V. Lift Capacity (500 mm forward, max. height) | 509 lbs (231 kg) | 423 lbs (192 kg) |
| W. Lift Capacity (bucket pivot pin, 1500 mm height) | 820 lbs (372 kg) | 699 lbs (317 kg) |
| X. Lift Capacity (500 mm forward, 1500 mm height) | 591 lbs (268 kg) | 505 lbs (229 kg) |
| Y. Breakout Force (bucket pivot pin) | 1407 lbf (6258 N) | 1286 lbf (5719 N) |
| Z. Breakout Force (500 mm forward) | 987 lbf (4389 N) | 901 lbf (4008 N) |
| VV. Bucket Roll-back Force at Max. Height | 1064 lbf (4731 N) | 996 lbf (4431 N) |
| XX. Bucket Roll-back Force at 1500 mm Height | 1249 lbf (5557 N) | 1183 lbf (5264 N) |
| ZZ. Bucket Roll-back Force at Ground Level | 1227 lbf (5456 N) | 1168 lbf (5195 N) |
| Raising Time | 3.3 sec. | 3.3 sec. |
| Lowering Time | 2.5 sec. | 2.5 sec. |
| Bucket Dumping Time | 2.7 sec. | 2.7 sec. |
| Bucket Rollback Time | 2.3 sec. | 2.3 sec. |
The LA340 uses a standard pin-on mount, whereas the LA340S is equipped with Kubota’s Swift-Tach system, allowing operators to quickly remove and attach the loader without tools. Ideal for landscaping, light construction, and property maintenance tasks, both loaders deliver smooth operation, high breakout force, and precise control — with the LA340S offering added convenience for users who frequently switch between attachments.
Kubota BT603 Backhoe
| Model | Kubota BT603 Backhoe |
|---|---|
| A. Transport Height | 67.7 in (1719 mm) |
| B. Stabilizer Spread-transport | 51.0 in (1296 mm) |
| C. Ground Clearance | 9.4 in (240 mm) |
| E. Overall Width | 44.4 in (1128 mm) |
| F. Maximum Digging Depth | 74.4 in (1889 mm) |
| G. Digging Depth, 2 ft. Flat Bottom | 72.5 in (1842 mm) |
| H. Digging Depth, 8 ft. Flat Bottom | 41.7 in (1059 mm) |
| J. Operating Height, Fully Raised | 100 in (2539 mm) |
| K. Loading Height | 60.4 in (1533 mm) |
| L. Loading Reach | 40.0 in (1016 mm) |
| M. Reach from Swing Pivot | 102.8 in (2612 mm) |
| N. Swing Pivot to Rear Axle Center Line | 28.6 in (726 mm) |
| P. Bucket Rotation | 180 deg |
| R. Stabilizer Spread-operating | 73.3 in (1862 mm) |
| A3. Angle of Departure (SAE J1234) | 20.1 deg |
| U. Leveling Angle | 11 deg |
| Swing Arc | 140 deg |
| Digging Force (bucket cylinder) | 1936 lbf (8.61 kN) |
| Digging Force (dipperstick cylinder) | 1171 lbf (5.21 kN) |
| Boom Cylinder, Extend | 4.5 sec |
| Boom Cylinder, Retract | 3.7 sec |
| Swing Cylinder, 90° to Center | 1.5 sec |
| Dipperstick Cylinder, Extend | 4.1 sec |
| Dipperstick Cylinder, Retract | 3.4 sec |
| Bucket Cylinder, Extend | 3.1 sec |
| Bucket Cylinder, Retract | 2.4 sec |
| Stabilizer Cylinder, Max Height to Ground | 2.9 sec |
| Stabilizer Cylinder, Ground to Max Height | 2.3 sec |
Backhoe Bucket Sizes
| Bucket Width | SAE Capacity (truck / heaped) | Teeth | Weight |
|---|---|---|---|
| Trenching, 8 in (203 mm) | 0.009 m3 / 0.011 m3 | 2 | 22 lb (10 kg) |
| Trenching, 12 in (305 mm) | 0.014 m3 / 0.020 m3 | 3 | 29 lb (13 kg) |
| Trenching, 16 in (406 mm) | 0.020 m3 / 0.029 m3 | 3 | 35 lb (16 kg) |
Mid-mount Mower Decks
| Model | Kubota RCK54D-26BX | Kubota RCK60D-26BX |
|---|---|---|
| Mount Type | Mid-mount (Suspended-Linkage) | Mid-mount (Suspended-Linkage / Self Balance) |
| Number of Blades | 3 | 3 |
| Cutting Width | 54 in (1372 mm) | 60 in (1524 mm) |
| Cutting Height | 1 to 4 in (25 to 102 mm), adjustable in increments | 1 to 4 in (25 to 102 mm), adjustable in increments |
| Adjustment of Cutting Height | 0.25 in Dial Gauge | 0.25 in Dial Gauge |
| Ground Clearance in Transport Position | 6 in (152 mm) | 6 in (152 mm) |
| Weight | 210 lb (95 kg) | 254 lb (115 kg) |
Easy-Over Mowers
| Model | Kubota RCK54D-26BX-1 | Kubota RCK60D-26BX-1 |
|---|---|---|
| Mount Type | Drive Over Suspended-Linkage | Drive Over Suspended-Linkage |
| Number of Blades | 3 | 3 |
| Cutting Width | 54 in (1372 mm) | 60 in (1524 mm) |
| Cutting Height | 1 to 4 in (25 to 102 mm), adjustable in increments | 1 to 4 in (25 to 102 mm), adjustable in increments |
| Adjustment of Cutting Height | 0.25 in Dial Gauge | 0.25 in Dial Gauge |
| Ground Clearance in Transport Position | 6 in (152 mm) | 6 in (152 mm) |
| Weight | 258 lb (117 kg) | 284 lb (129 kg) |
The tractor also supports additional accessories like the 4-point front hitch system, enabling users to mount snowblowers, blades, and sweepers with ease. Whether maintaining a property or tackling demanding projects, the BX23S’s attachment lineup makes it a true all-in-one workhorse.
Implement Limitations
Kubota BX23S Implement Limitations
| Implement | Specs | Limit |
|---|---|---|
| Backhoe | Max. Digging Depth | 72.4 in (1840 mm) |
| Max. Weight w/o Bucket | 586 lb (266 kg) | |
| Front-end Loader | Max. Lifting Capacity (Bucket pivot pin, max. height) | 739 lb (335 kg) |
| Max. Width | 48 in (1220 mm) | |
| Sub Frame | Necessary | |
| Mower (Mid-mount) | Max. Cutting Width | 60 in (1520 mm) |
| Max. Weight | 295 lb (134 kg) | |
| Rotary-Cutter (1 Blade) | Max. Cutting Width | 48 in (1220 mm) |
| Max. Weight | 400 lb (181 kg) | |
| Rear-Mount Mower (2 or 3 Blade) | Max. Cutting Width | 60 in (1520 mm) |
| Max. Weight | 577 lb (262 kg) | |
| Flail-mower | Max. Cutting Width | 42 in (1070 mm) |
| Sickle Bar | Max. Cutting Width | 48 in (1220 mm) |
| Rotary Tiller | Max. Tilling Width | 50 in (1270 mm) |
| Max. Weight | 435 lb (197 kg) | |
| Bottom Plow | Max. Size | 14 x 1 in. |
| Disc Plow | Max. Size | 22 x 1 in. |
| Cultivator | Max. Size | 48 in (1220 mm) |
| Rows | 1 Row | |
| Disc Harrow | Max. Harrowing Width | 48 in (1220 mm) |
| Max. Weight | 549 lb (249 kg) | |
| Sprayer | Max. Tank Capacity | 39.6 gal (150 L) |
| Front Blade | Max. Cutting Width | 60 in (1520 mm) |
| Sub Frame | Necessary | |
| Rear Blade | Max. Cutting Width | 60 in (1520 mm) |
| Max. Weight | 248 lb (112 kg) | |
| Box Blade | Max. Cutting Width | 60 in (1520 mm) |
| Max. Weight | 375 lb (170 kg) | |
| Snow Blower (Front) | Max. Working Width | 50 in (1270 mm) |
| Max. Weight | 353 lb (160 kg) | |
| Post Hole Digger | Digging Depth | 45 in (1140 mm) |
| Rotary Broom | Cleaning Width | 47 in (1190 mm) |
| Trailer | Max. Load Capacity | 1765 lb (800 kg) |
| Max. Weight | 2425 lb (1100 kg) |
The BX23S offers an ideal balance of power, ease of use, and maneuverability, making it a top choice for homeowners, small-scale contractors, landscapers, and rural property owners. It’s well-suited for:
- Landscaping and grading
- Digging trenches or footings
- Light construction work
- Snow removal
- Small-scale farming and maintenance tasks
Its tool-less Swift-Connect backhoe and Swift-Tach loader systems make attachment changes fast and frustration-free, while the comfortable operator station, hydrostatic transmission, and intuitive controls make it approachable even for first-time TLB users.
With its strong hydraulics, compact design, and reliable Kubota build quality, the BX23S punches well above its weight and is an excellent all-in-one workhorse for properties of 1–10 acres or for professionals needing a nimble, trailer-friendly utility machine.
