Part of the Kubota Parts Manuals.
This is the factory parts catalog for the Kubota L4400DT, a four-wheel-drive utility diesel tractor. Its 315 pages pair exploded component diagrams with Kubota part numbers, letting you pin down the exact piece you need before ordering rather than guessing from a worn original.The catalog covers the whole machine: crankcase, cylinder head, piston and crankshaft, injection pump and governor, cooling, the alternator, starter, battery, switches and wiring, clutch and transmission, PTO, hydraulics, front and rear axles, and steering. Every part carries a quantity, serial-number range and interchangeability marks so you can confirm a replacement fits your build.Owners and mechanics use it to match numbers to a serial plate, order gaskets and wear items in one pass, and verify supersessions. Delivered as a searchable, printable PDF, it works equally well on a shop computer or a phone at the machine.
What's Inside This Kubota L4400DT Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Clutch & Transmission | Clutch, Clutch Lever, Clutch Pedal, Clutch Housing, Mid Case, Transmission Case, Main Shaft, Countershaft, Range Gear Shaft, PTO Countershaft, PTO Clutch, Main Gear Shift Fork, Range Gear Shift Fork, Differential Lock Shift Fork, Main Gear Shift Lever, Range Gear Shift Lever | |
| Fuel System | Fuel Camshaft, Engine Stop Lever, Injection Pump, Governor, Speed Control Plate, Nozzle Holder and Glow Plug, Nozzle Holder, Air Cleaner, Accelerator Lever, Accelerator Linkage, Fuel Tank, Fuel Pipe and Fuel Filter, Fuel Filter | |
| Cooling System | Water Flange and Thermostat, Water Pump, Fan, Water Pipe, Radiator, Reserve Tank | |
| Engine | Crankcase, Oil Pan, Cylinder Head, Gear Case, Head Cover, Main Bearing Case, Camshaft and Idle Gear Shaft, Piston and Crankshaft, Flywheel, Valve and Rocker Arm, Inlet Manifold, Exhaust Manifold/Muffler, Upper Gasket Kit, Lower Gasket Kit | |
| Electrical System | Alternator, Starter, Battery, Switch 1 / Relay, Switch 2 / Sensor, Panel Board, Head Light, Hazard Light, Rear Lamp, Electrical Wiring | |
| Undercarriage & Travel | Steering Controller | |
| PTO | PTO Shaft, PTO Hydraulic Oil Line, PTO Protector | |
| Rear Axle, Differential & Brakes | Spiral Bevel Pinion, Rear Differential, Rear Axle LH, Rear Axle RH, Brake LH, Brake RH, Brake Rod 1, Brake Rod 2, Brake Pedal, Front Axle Case LH, Front Axle Case RH, Differential Gear Shaft, Rear Wheel | |
| Front Axle & Steering | Front Wheel Drive Lever, Front Axle Frame, Propeller Shaft, Front Wheel Drive Shaft, Front Differential Case, Front Axle, Steering Handle, Steering Support, Steering Cylinder, Front Wheel | |
| Hydraulics & 3-Point Hitch | Hydraulic Pump, Regulator Valve, Hydraulic Oil Line, Hydraulic Outlet Block, Hydraulic Cylinder, Lift Arm, Feed Back Lever, Control Valve, Position Control Lever, Top Link, 3-Point Linkage 1, 3-Point Linkage 2, Drawbar, Draft Control Lever, Top Link Holder, Auxiliary Control Valve Lever | |
| Body & Operator Station | Front Grille, Hood Front Support, Hood, Hood Side, Hood Side Cover, Shutter Plate, Hood Rear, Fender, Fender Support, Floor Seat Cover / Fender Bracket, Step, ROPS, Smv Emblem | |
| Decals & Accessories | Tool Box, Label 1, Label 2, Accessories and Service Parts | |
| Other Components | Bevel Gear, Differential, Front Bumper, Front Weight |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuse rating | 5A | p. 101 |
| Battery type | 80D26R | p. 83 |
| Assy Bulb power | 1.7W | p. 91 |
| Bulb power | 25W | p. 93 |
| Bulb Light power | 27W | p. 97 |
| Shim Injection Pump Thickness | 0.20mm | p. 30 |
Kubota L4400DT Common Problems This Manual Covers
No-crank or intermittent starting
A no-crank or intermittent start on the L4400 usually points at the switches, relay and safety circuit rather than the starter itself. This section identifies the switch and relay parts to check and replace.
Manual Section: Switch 1 / Relay p. 84Weak charging system
A battery that will not hold charge often traces to the alternator. The alternator section diagrams the assembly so you can order the correct unit for your L4400DT.
Manual Section: Alternator p. 74Slow crank from a tired starter
Slow or labored cranking, once the battery and connections check out, usually means a worn starter. This section shows the starter and its internal components.
Manual Section: Starter p. 78Fuel starvation and stalling
Rough running, power loss and stalling are commonly caused by a restricted fuel filter. The fuel filter component-parts section lets you identify the element and related pieces.
Manual Section: Fuel Filter [Component Parts] p. 64Clutch slip or hard shifting
Clutch wear shows up as slip under load or difficulty engaging gears. The clutch section covers the disc, pressure plate and release parts for a rebuild.
Manual Section: Clutch p. 102Electrical faults from aged wiring
Intermittent lights, gauges or accessory faults on an older L4400 often come from the harness. The electrical wiring section maps the wiring so you can trace and order the right sections.
Manual Section: Electrical Wiring p. 100Frequently Asked Questions
Which tractor does this catalog cover?
It is the parts catalog for the Kubota L4400DT, the four-wheel-drive utility tractor. Its 315 pages of diagrams and part numbers apply to that model.
Is this a parts catalog or a service manual?
It is a parts catalog. You get exploded diagrams with Kubota part numbers, quantities and serial ranges for ordering, not disassembly or repair instructions.
What fuse ratings does the L4400DT use?
The catalog lists the fuses in the electrical parts, with ratings running from 5A up to 40A depending on the circuit, so you can match the correct fuse when ordering. p. 101
What battery does the L4400DT take?
The battery listing specifies an 80D26R battery, letting you confirm the right replacement type and terminal layout from the catalog. p. 83
Is this Kubota L4400DT Parts Catalog a digital download?
Yes. It's a 315-page searchable PDF you can download right away. It opens on any device, so you can pull it up on your phone while you're under the hood. No shipping, no waiting.
Can I print specific sections of this Kubota L4400DT Parts Catalog?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
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