Specifications, Service and Repair of Farm and Lawn Tractors

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Kubota L3700SU Tractor Specs

Kubota D1803 Engine Specifications

Engine Make - Kubota
Engine Model - D1803-M
Number of Cylinders - 3
Displacement, cu in (L) - 111.4 (1.826)
Engine Bore, in (mm) - 3.43 (87)
Engine Stroke, in (mm) - 4.03 (102.4)
Block Design, Replaceable Liners - Parent bore block
Aspiration, Turbocharged or Naturally Aspirated - Natural

Engine Performance

Advertised Engine Power, Rated, hp (kW) - 37.4 (27.9)
Maximum Engine Power, hp (kW) - Same as Advertised
Rated Engine Speed, rpm - 2700
Power Boost, hp (kW) - No boost
Fuel Tank capacity, gal (L) - 9.0 (34)
Diesel Exhaust Fluid (DEF) tank capacity, gal (L) - No DEF

Fuel System

Fuel System Description - In-Line Pump System
Fuel System Control, Electronic or Mechanical Mechanical
Fuel Injection to combustion chamber - Indirect

Emission and Exhaust Treatment

Emission Level, US EPA Tier - Tier 4 Interim
Exhaust Pipe, Vertical stack or Horizontal - Horizontal

Cooling System

Fan Drive Type - Belt

Electrical System

System Rating, Volts - 12
Alternator Rating, Amps - 40

Kubota L3700 SU Power Take Off

PTO Horsepower, Basic / Optional Transmission, hp (kW) - 30 (22.4)
PTO Speeds, rpm - 540
PTO operational Type (Independent; Live; Continuous) - Live

Kubota L3700SU Transmission

Manufacturer's Description - Hydrostatic Drive
Transmission Type - Hydrostatic, 3 ranges
Number of Forward / Reverse Speeds - Infinite, 3 ranges
Maximum Speed Forward, mph (kph) - 14.1 (22.7)
Creeper Range Available - Yes, Hydrostatic
Shuttle (Forward-Reverse) Available - Yes

Wheel Configuration

Drive Wheels - 4WD
Steering Configuration - Front Steer

Rear Axle Assembly

Final Drive Location and Description - Inboard planetary
Axle Output End, Flange or Bar - Flange
Axle Bar Diameter, in (mm) - No bar axle

Front Axle

Suspended Front Axle Available - No

Brakes

Service Brake Type - Wet disc

Kubota L3700 SU Hydraulic System

Hydraulic System Type - Open center
Main Hydraulic Pump Type - Gear
Standard Pump Flow, gpm (Lpm) - 6.8 (25.7)
Optional Pump Flow, gpm (Lpm) - No option

3-Point Hitch Features

3-Point Hitch Category - Category 1
Optional Hitch Category - No option
Draft Sensing or Lift Control - Position control
Draft Link Ends Adjustable - No

Kubota L3700 SU Tractor 3-Point Hitch Lift Capacity

Standard Lift Capacity 24 Inches behind pin, lb (kg) - 1,435 (651)
Optional Lift Capacity 24 Inches behind pin, lb (kg) - No Option
Standard Lift Capacity at lift pin, lb (kg) - 1,998 (906)
Optional Lift Capacity at lift pin, lb (kg) - No Option

Drawbar

Drawbar Description - Optional Drawbar

Wheelbase

Wheelbase, MFD/4WD, in (mm) - 63.3 (1610)

Kubota L3700SU Dimensions and Weight

Length, MFD/4WD or track, incl. Hitch/Drawbar, in (mm) - 106.5 (2705)
Height to Top of ROPS raised, in (mm) - 85 (2160)
Overall Width, with standard wheels or tracks, in(Mm) - 51.4 (1305)
Weight, MFD/4WD w/ROPS, lb (kg) - 2,568 (1165)

Tire Size

Front Tire Size orTrack Width, MFD/4WD or Track - 7.00-16 R1
Rear Tire Size or Track Width - 11.2-24 R1

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