Every part on the Kubota L4150DT traces back to one OEM number, and this catalog is where you find it. Its 275 pages tie each assembly to that number, matching what's already bolted to the tractor. Engine coverage spans from crankcase through injection pump, governor, and water pump. The drivetrain covers transmission shafts, rear differential, and PTO. The hydraulic section includes the draft control valve, shuttle valve, and 3-point linkage. Each exploded view ties a reference number to its part description, quantity, and factory weight. Need the fuel filter assembly? It's 19271-43010; the air cleaner is 17381-11010, the factory part rather than a generic stand-in. Bookmarks by system let you open the file on your phone at the parts counter and order right the first time.
What's Inside This Kubota L4150DT Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Crankcase | 6-7 | Cap Sealing, Pipe Water Return, Pipe Water, Liner Cylinder, O Ring, Gasket, Assy Pump Oil |
| Oil Pan | 8-9 | Gasket, Filter Oil, O Ring, Gauge Oil |
| Cylinder Head | 10-11 | Hook Engine, Cap Sealing, Guide Inlet Valve, Guide Exhaust Valve, Gasket Cylinder Head, Thermo Unit |
| Gear Case | 12-13 | Case Gear, Cap Sealing, Pipe Water, O Ring, Pipe Water Return, Gasket Gear Case, Cap, Spring |
| Oil Filter | 14-15 | Assy Filter Oil, Assy Cover, Comp Valve Relief, O Ring, Assy Cartridge Filte, Label Oil Filter |
| Main Bearing Case | 16-17 | Assy Case Main Brg, Gasket, Cover Bearing Case, Seal Oil |
| Manifold | 18-19 | Manifold Inlet, Gasket, Manifold Exhaust, Bolt |
| Valve and Rocker Arm | 20-21 | Valve Inlet, Valve Exhaust, Spring Valve, Retainer Valve Sp, Collet Valve Spring, Seal Valve Stem, Cap Valve, Assy Shaft |
| Cylinder Head Cover | 22-23 | Plate Element, Element Breather, Oil Shield Breather, Joint Breather Pipe, Cover Head, Gasket Head Cover, Gasket, O Ring |
| Camshaft | 24-25 | Tappet, Rod Push, Assy Camshaft, Gear Camshaft, Stopper Camshaft, Gear Idle, Bush Idle Gear, Collar |
| Piston and Crankshaft | 26-27 | Piston, Assy Piston Ring, Assy Connecting Rod, Metal Crankpin, Crankshaft, Sleeve Crankshaft, Gear Crankshaft, Gear Oil Pump Drive |
| Flywheel and Starter | 28-29 | Flywheel, Gear Ring, Housing Flywheel, Cover, Assy Starter |
| Injection Pump | 30-31 | Joint Eye, Assy Cock, Gasket, O Ring, Knob, Assy Pump Injection, Assy Pump Fuel, Diaphragm |
| Fuel Camshaft | 32-33 | Assy Camshaft Fuel, Gear Injection Pump, Sleeve Governor, Stopper |
| Nozzle and Glow Plug | 34-35 | Assy Nozzle, Spacer Nozzle, Pipe Injection, Pipe Fuel Over Flow, Clip Pipe |
| Governor | 36-37 | Lever Governor, Assy Lever Fork, Shaft Fork Lever, Holder Fork Lever, Spring Start, Spring Governor |
| Speed Control Plate | 38-39 | Gasket, Cap, Lever Speed Control, O Ring, Plate Friction, Plate Speed Control |
| Compensator | 40-41 | Lever Compensator, Spring Return, Collar, Housing Compensator, O Ring, Compensator Idle, Spring, Themostat |
| Idling Apparatus | 42-43 | Cover, Gasket, Apparatus Idling, Assy Bolt Adjusting, Spring, Cap, Assy Lvr.engine Stop, Cover Injection Pump |
| Dynamo and Fan | 44-45 | Support Dynamo, Stay Dynamo, Pully Fan Drive, Damper Crank Shaft, Assy Dynamo, Fan, Support Fan, Collar Fan |
| Thermostat | 46-47 | Flange Water, Gasket Water Flange, Pipe Water Return, Band Pipe, Cover Thermostat, Gasket, Assy Thermostat |
| Water Pump | 48-49 | Assy Pump Water, Shaft Water Pump, Impeller Water Pump, Set Seal, Slinger, Pully Fan, Gasket Water Pump |
| Battery Support | 50-51 | Support Battery, Retainer Battery, Base Radiator Cock, Support Radiator, Cushion, Support Cushion, Cushion Bonnet, Stopper |
| Front Axle Bracket | 52-53 | Bumper, Bracket Front Axle, Bolt, Washer |
| Clutch (Dual Clutch) | 54-55 | Assy Clutch Dual, Disk Clutch, Cover Clutch, Plate Pressure, Spring Diaphragm, Kit Lever Release, Kit Rod Release, Kit Pin Straight |
| Clutch (Single Clutch) | 56-57 | Assy Plate Pressure, Disk Clutch, Bolt, Pin |
| Clutch Lever (Dual Clutch) | 58-59 | Fork Clutch Release, Assy Hub Clutch, Spring Release Hub, Nipple Grease, Bearing, Cover Shaft, Seal Oil, Gasket |
| Clutch Lever (Single Clutch) | 60-61 | Fork Clutch Release, Hub Clutch Release, Spring, Bearing, Nipple Grease, Guide Hub, Seal Oil, Lever Clutch |
| Clutch Pedal (Dual Clutch) | 62-63 | Rod Clutch, Turnbuckle, Heel Pedal, Bracket Switch, Cover, Arm Clutch Pedal, Bush, Nipple Grease |
| Clutch Pedal (Single Clutch) | 64-65 | Rod Clutch, Turnbuckle, Heel Pedal, Bracket Switch, Cover, Arm Clutch Pedal, Bush, Nipple Grease |
| Clutch Pedal Stopper (Dual Clutch) | 66-67 | Stopper Pedal, Spring, Bolt, Nut |
| Power Steering | 68-69 | Assy Steering Power, Pin, Stud, Bolt |
| Power Steering (Section Parts) | 70-71 | Assy Steering Power, Assy Box Gear, Bearing Needle, Gasket, Seal Oil, Ring, O Ring, Assy Valve Housing |
| Steering Wheel Tilt Lever | 72-73 | Base Steering, Post Steering, Spring, Lever Tilt, Grip, Cover Post RH, Cover Post LH Manual Shuttle, Cover Post LH Hydraulic Shuttle |
| Steering Wheel | 74-75 | Shaft Steering, Bush Steering Post, Universal Joint, Assy Wheel Steering, Pad Steering |
| Drag Link | 76-77 | Arm Pitman, Link Drag, End Rod, Cover Rod End, Lever Steering, Shaft, Bush, Seal Oil |
| Power Steering Oil Line (Manual Shuttle) | 78-79 | Pipe Return, O Ring, Assy Pipe Rubber, Band Hose, Joint, Pipe Delivery |
| Power Steering Oil Line (Hyd.Shuttle) | 80-81 | Pipe Return, O Ring, Assy Pipe Rubber, Band Hose, Joint, Pipe Delivery |
| Power Steering Oil Tank | 82-83 | Tank Oil, Stay Tank, Plug, Washer |
| Throttle Lever | 84-85 | Joint Rod, Rod Accel, Lever Hand Accel, Link Accel, Grip Accel, Shaft Hand Accel, Arm Lever, Spring |
| Throttle Pedal | 86-87 | Rod Accel, Shaft Pedal, Spring, Pedal Accel |
| Front Roof | 88-89 | Assy Roof Front, Net Front Roof, Bracket Upper, Bracket FR0NT R00F, Bracket LH, Lamp RH, Lamp LH, Bracket Lamp RH |
| Front Grille | 90-91 | Assy Grille Front, Net Front Grille, Bracket Glille RH, Bracket Glille LH, Pipe Rubber, Cushion, Support Glille, Spring |
| Hood 1 | 92-93 | Plate Upper, Hinge Bonnet, Support Bonnet, Cushion, Spring Bonnet Holder, Handle Bonnet Cover, Lever Bonnet Handle, Spring B0NNET Handle |
| Hood 2 | 94-95 | Plate Side RH, Plate Side LH, Cushion LH, Cushion RH, Cushion, Cushion Cover, Cushion Bonnet, Cover Side RH |
| Seat | 96-97 | Assy Seat, Assy Suspention Seat, Shaft, Base Cushion, Support Seat, Cushion Upper, Cushion Lower, Spacer |
| Hood Cushion | 98-99 | Cushion LH, Cushion RH, Cushion, Stopper |
| Main Clutch Case | 100-101 | Case Main Clutch, Bush, Nipple Grease, Cover, Packing Rubber, Assy Pipe Rubber, Clip Pipe, Stay Breather |
| Main S-Change Case | 102-103 | Case Main S-Change, Gasket, O Ring, Pin |
| St Shaft (Manual Shuttle) | 104-105 | Case Bearing, Shaft, Gear, Collar, Seal, Shaft PTO, Bearing Needle, O Ring |
| St Shaft (Hydraulic Shuttle) | 106-107 | Case Bearing, Shaft, Gear, Collar, Collar Bearing, O Ring, Bearing Needle |
| Nd Shaft (Manual Shuttle) | 108-109 | Gear, Shaft, Race Inner, Boss Spline, Shifter, Collar Thrust, Collar |
| Nd Shaft (Hydraulic Shuttle) | 110-111 | Gear, Shaft, Collar, Bearing Needle, Race Inner, Collar Thrust, Case Clutch, Disk Clutch |
| Main Shaft | 112-113 | Gear, Collar, Bearing, Coupling, Shaft Main |
| Counter Shaft | 114-115 | Gear, Race Inner, Boss Spline, Shifter, Hub Clutch, Clutch, Synchronizer, Spring |
| Hi-Lo S-Change Shaft | 116-117 | Gear-Shaft, Bush, Gear, Collar, Retainer Bearing, Race Inner, Boss Spline, Shifter |
| PTO Shaft | 118-119 | Gear-Shaft, Gear, Bearing, Shaft PTO, Boss Spline, Shifter, Collar Thrust, Race Inner |
| Transmission Case | 120-121 | Case Transmission, Gasket, Cap Sealing, Assy Plug Magnet, Case PTO, Cover Case |
| Rear Differential | 122-123 | Assy Gear Bevel -, Differential, Case Differential, Shaft Diff Pinion, Pinion Diff, Gear Diff.side, Shifter Diff Lock |
| Diff.Bearing Support | 124-125 | SUPP0RT Diff.bearing, Bearing, Bolt, Shim |
| Speed Change Cover | 126-127 | Gasket, Cover, Square Ring, Gauge Oil, Base Speed Change, Knock Pipe, Cover Speed Change |
| Shift Fork | 128-129 | Rod Fork, Spring Stopper, Fork Shift, Support S-Change, Lever Shift, Wire |
| Main Gear Shift Lever | 130-131 | Rod Speed Change, Boot, Spring Stopper, Breather, Assy Lever, Bush, Collar, Lever Main S-Change |
| Hi-Lo Gear Shift Lever | 132-133 | Assy Fork Shift, Spring Stopper, Rod Fork, Lever Shift, O Ring, Stopper Lever, Lever S-Change, Bush |
| PTO Gear Shift Lever | 134-135 | Rod Fork PTO, Assy Fork Shift, Spring Stopper, Lever Shift, O Ring, Stopper Lever, Arm Lever, Rod Speed Change |
| Shuttle Shift Lever (Manual) | 136-137 | Rod Fork, Fork Shift, Spring Stopper, Lever Shift, O Ring, Stopper Lever, Arm Shuttle, Rod Shuttle |
| Shuttle Shift Lever (Hydraulic) | 138-139 | Collar, End Rod, Rod, Lever Shuttle, Grip Lever, Bush, Lever, Guide Lock |
| Diff.Lock Pedal | 140-141 | Fork Shift, Cam Diff Lock, Wire, Shaft Diff Lock, Spring, Support Shaft, Seal Oil, O Ring |
| Planetary Gear | 142-143 | Gear-Shaft RH, Gear-Shaft LH, Gear Planetary, Support, Collar Thrust, Bearing Needle, Gear |
| Rear Axle | 144-145 | Axle Rear, Holder Carrier, Collar, Seal, Cover Rear Axle, Gasket, Case Axle, O Ring |
| Brake | 146-147 | Case Brake RH, Case Brake LH, Plate Friction, Plate, Plate Cam, Spacer, Retainer Spring, Spring |
| Brake Pedal | 148-149 | Shaft Brake Pedal, Collar, Arm Brake Pedal RH, Bush, Nipple Grease, Arm Brake Pedal LH, Wire, Spring |
| Parking Brake Lever | 150-151 | Assy Rod Brake, Turnbuckle, Assy Lever Brake, Spring |
| Fender | 152-153 | Fender RH, Fender LH, Balustrade, Cushion, Cap |
| Floor Seat | 154-155 | Seat Floor RH, Seat Floor LH, Seat Floor Middle, Support Floor Seat, Guide Lever RH, Cushion RH, Pattern S-Change, Guide Lever LH |
| Step | 156-157 | Step RH, Step LH, Spacer, Cushion, Support Step LH, Support Step RH |
| Panel Board | 158-159 | Plate Shutter, Panel, Assy Board Panel, Cable Tractormeter, Cover Post Lower |
| Switch and Regurator | 160-161 | Assy Switch Main, Assy Key Switch, Assy Regurator, Timer, Switch, Unit Flasher, Switch Vacuum, Cover Protector |
| Light | 162-163 | Assy Light Hazard, Light Head LH, Bulb Light, Light Head RH, Spring Light, Light Rear Combi.rh, Light Rear Combi.lh |
| Battery | 164-165 | Senser Battery, Buffer, Battery Dry, Cord Earth, Cord Battery |
| Electrical Wiring | 166-167 | Assy Wireharness, Link, Assy Box Fuse, Cover Fuse Case, Fuse 10A, Assy Clamp Cord, Band Cord, Support Cord |
| Fuel Tank | 168-169 | Assy Tank Fuel, Assy Cap Fuel Tank, Sponge, Gasket, Unit Tank, Unit Cover, Bracket Unit Cover, Rubber Protector |
| Fuel Tank Support | 170-171 | Support Tank, Rubber Protector, Base Cushion, Cushion Upper, Cushion Lower, Spacer, Retainer Cushion |
| Fuel Line | 172-173 | Assy Pipe Fuel, Clip Pipe, Spring Pipe Protect, Support Pipe |
| Fuel Filter | 174-175 | Assy Filter Fuel, Bracket Fuel Filter, Assy Pipe Fuel, Clip Pipe, Spring Pipe Protect, Bracket Air-Cock, Assy Cock Jet Start, Support Cock |
| Fuel Filter (Section Parts) | 176-177 | Assy Filter Fuel, Assy Body, Handle Filter, Gasket, Retainer Handle, Plate Thrust, O Ring, Ring Retainer |
| Relief Valve | 178-179 | Assy Valve Relief, Body Relief Valve, Spring, Seat, Poppet, O Ring, Gasket |
| Hydraulic Cylinder | 180-181 | Cylinder O/p, Gasket, Bolt, Stud |
| Hydraulic Cylinder Cover | 182-183 | Cylinder O/p, Collar Adjusting, Shaft O/p Adjusting, O Ring, Assy Valve Safety, Ring Back Up |
| Lift Arm | 184-185 | Piston O/p, O Ring, Ring Back Up, Rod Oil Pressure, Arm O/p, Shaft, Wire, Bush |
| Hydraulic Control Valve | 186-187 | Valve Control, Joint Spool, Lever Spool Drive, Arm Control, O Ring, Set Plate, Spring, Lever Position |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| replacement value | Part No. 17381-11010 ASSY CLEANER AIR | p. 225 |
| Crankcase Weight (S.No. <=26364) | 58 kgf | p. 7 |
| Oil Pan Weight | 25.5 kgf | p. 9 |
| Cylinder Head Weight | 24.4 kgf | p. 11 |
| Injection Pump Assembly Weight | 3.45 kgf | p. 31 |
| Dynamo Assembly Weight | 3.47 kgf | p. 45 |
| Front Axle Bracket Bumper Weight | 30 kgf | p. 53 |
| Power Steering Assembly Weight | 16.5 kgf | p. 69 |
| Radiator Assembly Weight | 9.95 kgf | p. 229 |
| Front Wheel (9.5-20) Assembly Weight | 88 kgf | p. 269 |
| Rear Wheel (14.9-28) Assembly Weight | 254 kgf | p. 273 |
Kubota L4150DT Common Problems This Manual Covers
Hard starting, rough idle, or power loss under heavy load on the L4150DT p. 175
Start at the fuel filter section on page 175. Swap the whole unit for ASSY FILTER FUEL part #19271-43010, or if only the internal element is gone, the exploded view on page 177 lists ELEMENT FILTER part #15521-43160. Confirm your fuel lines match the diagram before ordering.
Manual Section: Fuel FilterMain hydraulic system and three-point lift feel weak, operate with jerky movements, or will not lift p. 207
Check the suction oil line diagram on page 206. Locate the hydraulic filter assembly to identify the correct replacement components. Order COMP.FILTER OIL part #36330-82630 listed on page 207 to restore proper fluid flow. Inspect the surrounding O-rings and clamps in the diagram for wear.
Manual Section: Hydraulic Oil Line (Suction)Engine misfires and blows black smoke indicating worn injector nozzles or leaking delivery lines p. 35
Pull up the nozzle and glow plug breakdown on page 34 and match it to your engine configuration. Worn injectors swap out via ASSY NOZZLE part #17331-53000 on page 35. Cross-reference the injection pipes and clamps before ordering so the fuel system seals completely.
Manual Section: Nozzle and Glow PlugHeavy dust environment causing severe air restriction and engine choking under heavy load p. 225
Examine the double air cleaner schematic on page 224. Identify the primary cleaner housing and mounting bands. Order the complete replacement ASSY CLEANER AIR part #17381-11010 listed on page 225. If reusing the housing, secure the inner element part #68335-43620 shown on page 227.
Manual Section: Air Cleaner (Double)Frequently Asked Questions
What is the fuel filter assembly part number for the Kubota L4150DT?
The complete fuel filter assembly is Part No. 19271-43010, listed on page 175. If only the internal element needs replacement, the exploded view on page 177 lists the filter element as Part No. 15521-43160. Confirm your fuel lines match the diagram before ordering.
What hydraulic oil filter part number restores proper lift on the Kubota L4150DT?
The hydraulic oil filter assembly is Part No. 36330-82630, listed on page 207. The suction oil line diagram on page 206 shows the surrounding O-rings and clamps to inspect for wear at the same time.
What injector nozzle part number does the Kubota L4150DT use?
Worn injectors are replaced with ASSY NOZZLE Part No. 17331-53000, shown on page 35. The nozzle and glow plug breakdown on page 34 covers engine configuration cross-references. Check the injection pipes and clamps in the same diagram before ordering.
What is the complete air cleaner part number for the Kubota L4150DT?
The complete replacement air cleaner assembly is Part No. 17381-11010, listed on page 225. If reusing the housing, the inner element is Part No. 68335-43620, shown on page 227. The double air cleaner schematic on page 224 shows the primary housing and mounting bands.
What do I get after purchasing this Kubota L4150DT manual?
A 275-page Parts Catalog in searchable PDF, ready to download the moment checkout completes. Open it on a computer, tablet, or phone with no shipping wait.
Are there any print restrictions on this manual?
The PDF is DRM-free, so print whatever sections you want to take out to the shop. Standard letter or A4 paper works fine.
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