Best for
- Loader work and frequent direction changes
- Mowing, grading and property maintenance
- Owners wanting the lowest-cost Grand L70 model
- ROPS or factory-cab buyers
Kubota L3770
A detailed, independently maintained profile of the Kubota L3770, including key capabilities, practical fit and full specifications.
MODELL3770
DRIVE4WD
WEIGHT1,690 kg ROPS / 1,830 kg cab
MARKETUnited States / Grand L70 Deluxe / ROPS or cab
Engine power
37 HP
37 HP gross at 2,600 rpm
PTO output
28 HP
28 HP
Rear lift
1,700 kg
1,700 kg at lift points / 1,200 kg at 610 mm
Transmission
3-range hydrostatic transmission (HST)
Hydrostatic, 3 ranges
Tractor overview
The Kubota L3770 is the 37-horsepower Deluxe entry point in the current Grand L70 range. Its naturally aspirated 1.826-litre three-cylinder diesel, 28-horsepower rear PTO and three-range hydrostatic transmission make it best suited to loader work, mowing, grading and other jobs where easy speed control matters more than maximum PTO output. Official US specifications list 1,700 kg of rear-link lift at the lift points, a 30.4 L/min hydraulic pump and a compact 1,805 mm wheelbase. Buyers can choose ROPS or cab configurations, and Kubota lists the BH92A backhoe as compatible with the Grand L70 platform. The main limitation is capacity: the L3770 is the least powerful model in the series, so larger rotary cutters, demanding hay tools and sustained drawbar work can use up its available power quickly. It is the sensible choice when maneuverability, hydrostatic convenience and lower purchase cost matter more than reserve horsepower.
Who this tractor suits
Not ideal for
- Large PTO-driven hay equipment
- Heavy drawbar work or oversized implements
Practical specification guide
What the headline specifications mean during real tractor work.
Engine and usable power
Kubota L3770 is rated at 37 HP gross at 2,600 rpm, with 114.1 Nm of maximum torque and 28 HP available at the PTO. Match continuous implement demand to PTO output rather than gross engine horsepower.
Hydrostatic operating range
The 3-range hydrostatic transmission (HST) provides 0.1–27.7 km/h travel speed with infinitely variable control inside each range. It favors loader work, mowing and repeated direction changes; mechanical rear differential lock assists when traction drops.
Rear hitch and hydraulic capacity
The hydraulic system uses Gear pump; 30.4 L/min and the rear hitch is rated at 1,700 kg at lift points / 1,200 kg at 610 mm. The Category 1 hitch and up to 3 optional rear remotes determine which mounted and hydraulic implements can be used without additional equipment.
PTO implement matching
The tractor uses Independent rear PTO, operates at 540 PTO at 2,491 engine rpm, and has hydraulic engagement. Check the implement's minimum PTO-horsepower requirement and driveline speed before choosing cutters, tillers or other powered attachments.
Size, stability and access
A 1,805 mm wheelbase, 1,690 kg ROPS / 1,830 kg cab operating weight and 360 mm ground clearance affect maneuverability, transport and ballast needs. Cab and ROPS versions should be assessed separately because their weight and overall height differ.
Configuration & variant guide
Options and market differences that can change how this tractor is equipped or used.
| Option | Available setup | What it changes |
|---|---|---|
| Operator-station variant | ROPS or factory cab | The operator-station choice changes weather protection, machine weight and purchase price. Seat specification is adjustable suspension seat, while control layout is Right-side controls; multifunction joystick on Premium trim. |
| Loader and backhoe preparation | Front-loader compatible: Yes; backhoe compatible: Yes | Confirm the exact loader/backhoe model, mounting kit, ballast requirement and compatibility with the selected cab or ROPS build before ordering. |
| Rear hydraulic remotes | Up to 3 optional rear remotes | Remote-valve count determines whether implements with hydraulic cylinders, top links or other auxiliary functions can be operated without aftermarket valve additions. |
| PTO and hitch setup | Independent rear PTO; 540 PTO at 2,491 engine rpm; Category 1 rear hitch | This setup defines driveline speed and implement category. Verify shaft, hitch pin and implement-weight compatibility rather than relying only on engine horsepower. |
| Cab comfort and regional build | Air conditioning: Optional; market: United States / North American specification | Dealer builds can differ in tires, cold-weather equipment, loader controls and optional hydraulics, so the final order sheet should be checked against the published base specification. |
CHECKPOINT 06
Strengths and considerations
What stands out
- Officially documented Grand L70 engine and PTO output.
- Easy three-range hydrostatic operation.
- ROPS and factory-cab configurations.
- BH92A backhoe and matched-loader support.
Check before buying
- Hydrostatic drive is not optimized for continuous heavy drawbar work.
- Rear lift changes little across several higher-horsepower models.
- Options can materially increase configured price.
CHECKPOINT 07
ID
EN
SP
SP
PT
HY
TR
TY
EL
ST
OP
IM
DM
SP
CN
Full specifications
81 data points across 15 categories.
ID
General Identification
7 fields
⌄
- Brand
- Kubota
- Model Name
- L3770
- Model Year
- 2026
- Series
- Grand L70 Series
- Configuration
- Deluxe trim; ROPS or factory cab
- Tractor Class
- Compact Utility Tractor
- Drive Configuration
- 4WD
EN
Engine
15 fields
⌄
- Engine Manufacturer
- Kubota
- Engine Model
- D1803-CR-E5
- Engine Type
- Direct-injection, water-cooled, 4-cycle diesel
- Number of Cylinders
- 3
- Bore × Stroke
- 87 × 102.4 mm
- Engine Displacement
- 1.826 L (1,826 cc)
- Aspiration
- Naturally aspirated
- Fuel System
- Common-rail system (CRS)
- Injection Pump
- Electronically controlled common rail
- Rated Engine Speed
- 2,600 rpm
- Maximum Engine Power
- 37 HP gross at 2,600 rpm
- Maximum Torque
- 114.1 Nm
- Governing Type
- Electronic
- Air Intake System
- Dry-type air cleaner
- Emission Standard
- EPA Final Tier 4
SP
Power Output
2 fields
⌄
- Engine Gross Power
- 37 HP
- PTO Power
- 28 HP
SP
Brake System
4 fields
⌄
- Brake Type
- Wet disc
- Actuation
- Hydraulic
- Parking Brake
- Mechanical parking brake
- Brake Cooling
- Oil-immersed
PT
PTO (Power Take-Off)
5 fields
⌄
- PTO Type
- Independent rear PTO
- PTO Engagement
- Hydraulic engagement
- PTO Speed
- 540 PTO at 2,491 engine rpm
- PTO Shaft
- SAE 1-3/8 in, 6-spline
- Ground Speed PTO
- No
HY
Hydraulic System
9 fields
⌄
- Hydraulic Type
- Open center
- Hydraulic Pump
- Gear pump; 30.4 L/min
- Lifting Capacity
- 1,700 kg at lift points / 1,200 kg at 610 mm
- Lift Control
- Position control
- 3-Point Hitch
- Yes
- Hitch Category
- Category 1
- Lower Link Ends
- Telescopic lower links
- Auxiliary Valve
- Up to 3 optional rear remotes
- Response Control
- Mechanical
TR
Transmission & Drivetrain
7 fields
⌄
- Clutch Type
- Hydrostatic; no clutch pedal
- Transmission Type
- 3-range hydrostatic transmission (HST)
- Gearbox Configuration
- Hydrostatic, 3 ranges
- Forward Gears
- Infinite within 3 ranges
- Reverse Gears
- Infinite within 3 ranges
- Forward Speed Range
- 0.1–27.7 km/h
- Differential Lock
- Mechanical rear differential lock
TY
Tyres & Axle Data
7 fields
⌄
- Tyre Type
- Agricultural; alternate tire options available
- Front Tyres
- 7.0-16
- Rear Tyres
- 12.4-24
- Front Axle
- 4WD front axle
- Rear Axle
- Rear axle
- Track Width (Front)
- 1,155 mm
- Track Width (Rear)
- 1,200–1,480 mm
EL
Electrical & Electronics
5 fields
⌄
- Electrical System
- 12 V
- Battery Capacity
- 12 V, 582 CCA (RC 133 min)
- Starter Motor
- Electric
- Instrument Cluster
- Digital/analog instrumentation
- Warning Indicators
- Engine and charging warnings
ST
Steering System
4 fields
⌄
- Steering Type
- Hydrostatic power steering
- Steering Gear
- Hydrostatic
- Turning Radius (with brakes)
- 2.7 m
- Steering Column
- Tilt-adjustable steering
OP
Operator Environment
6 fields
⌄
- Seat
- Adjustable suspension seat
- Suspension Seat
- Available
- ROPS
- ROPS or factory cab
- Canopy
- ROPS canopy optional
- Footstep
- Flat deck with anti-slip steps
- Control Layout
- Right-side controls; multifunction joystick on Premium trim
IM
Implement Compatibility Matrix
2 fields
⌄
- Front Loader Compatible
- Backhoe Attachment Compatible
DM
Dimensions & Weight
6 fields
⌄
- Wheelbase
- 1,805 mm
- Overall Length
- 2,945 mm
- Overall Height
- 2,320 mm cab / 2,470 mm ROPS
- Overall Width
- 1,520 mm
- Minimum Ground Clearance
- 360 mm
- Unladen Weight
- 1,690 kg ROPS / 1,830 kg cab
SP
Ownership & Cost
1 field
⌄
- Availability / Market
- United States / North American specification
CN
Comfort & Noise
1 field
⌄
- Air Conditioning
- Optional
No specifications match your search.
CHECKPOINT 08
Sources and verification
Last manually verifiedJuly 24, 2026
Market / variantUnited States / Grand L70 Deluxe / ROPS or cab
Accuracy note: Exact values come from Kubota's US Grand L70 brochure. Tire, loader, cab, cold-weather and rear-remote equipment varies by configuration; unsupported estimates from the previous JSON were removed.
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