1998–2002 Kubota L4310DT-GST-C/HST-C Tractor Parts List (P/N 100K0490)

Kubota parts book 100K0490 covers the catalog designation L4310DT-GST-C/HST-C, with GST- and HST-specific cab content throughout. Match the tractor’s configuration before choosing this publication: it is an illustrated parts catalog for replacement-part identification and repair planning, not a general all-variant L4310 workshop manual.

• Engine assemblies: Exploded views identify crankcase, oil pan, cylinder head, gear case, main bearing case, camshaft, piston, crankshaft, valve-train, and gasket-kit parts.

• Fuel and cooling systems: Component breakdowns cover the injection pump, governor, nozzle holder, glow plugs, fuel filter, air cleaner, thermostat, water pump, and radiator.

• GST and HST drivetrain: Separate parts groups cover clutch housings, GST valves, the HST unit, transmission cases, shafts, PTO arrangements, shift forks, and rear axle assemblies.

• Steering and hydraulics: Illustrated groups identify steering-controller and cylinder parts, hydraulic pumps, regulator valves, oil lines, outlet blocks, lift components, and control valves.

• Electrical equipment: Alternator and starter component lists accompany switches, panel-board parts, lights, wipers, washer systems, and configuration-specific wiring-harness layouts.

• Cab and climate control: Parts views cover cab structure, brackets, doors, locks, roof panels, glass, seat suspension, heater hoses, condenser, compressor, and air-conditioning components.

• Fitment and ordering: Serial-number applicability, interchangeability symbols, country-code remarks, and quantities distinguish replacement parts that may look alike in the illustrations.

This catalog is suited to parts staff and owners or technicians who can match numbered assembly callouts to the tractor’s configuration and serial-number information.

Parts Identification Down to Component Level

Each illustrated section uses numbered callouts that lead to the matching table. Entries provide the reference number, part number assigned at the time of printing, description, quantity, serial-number applicability, interchangeability status, remarks, and component-weight columns labeled kgf and lb.

The I/C field distinguishes interchangeable parts, noninterchangeable changes, and one-way replacements. Reading it alongside S.No. and Remarks helps prevent ordering a visually similar part that does not fit the relevant production version.

The catalog goes below complete assemblies. Injection-pump, nozzle-holder, alternator, starter, hydraulic-pump, fuel-filter, panel-board, and seat-suspension sections identify individual components. Gasket kits, O-rings, oil seals, bearings, snap rings, spacers, springs, bolts, washers, and mounting brackets are indexed by part number.

Transmission, PTO, and Axle Variations

GST and HST sections separate transmission housings and controls, accelerator linkages, pedals, hydraulic pumps, and oil lines. PTO groups distinguish independent-PTO and non-independent-PTO components, while transmission-case and PTO-shaft groups identify configurations without mid PTO. GST creep components have their own listings.

Representative exploded views include Piston and Crankshaft, GST Valve [Component Parts], and HST [Component Parts]. They show component relationships for parts sourcing without supplying disassembly or overhaul instructions.

Front differential, front axle, rear differential, brake, and wheel groups extend coverage beyond the transmission. Old/new distinctions are specific to the assembly; a tractor’s air-cleaner version does not establish which HST wiring group applies.

Hydraulic Controls and Rear Linkage

The Steering Cylinder [Component Parts] and Control Valve [Component Parts] views identify internal parts and sealing items. Related groups cover the HST oil cooler, lift cylinder, feedback linkage, position control, remote-valve hardware, 3-point linkage, and drawbar assemblies.

Optional-equipment listings include draft-control linkage, a top-link holder, swinging and clevis drawbars, and first, second, and third remote-control-valve lever and coupler arrangements.

Before opening hydraulic lines during repair work, relieve system pressure and follow standard heavy-equipment safety procedures.

Electrical Layouts, Cab Parts, and Accessories

United States and Canada versions are separated for selected switches, lights, washer and wiper parts, cab glass, and labels. GST/HST distinctions also affect alternators, wiring harnesses, cab brackets, and floor mats.

The sections titled Electrical Wiring show harnesses and mounting components rather than electrical circuit schematics. Air Conditioner [Cab Type] provides an exploded component view, with separate heater-hose, condenser, and compressor groups.

Optional listings cover air-cleaner covers, working lights, switches, speakers, rear wipers, glass, and front-guard stays. Assembly or instruction manuals listed as parts are not additional publications included in this download.

For diagnostic procedures, torque settings, hydraulic pressure tests, electrical test values, service limits, and repair instructions, a workshop manual is required.

Examples of Engine Parts Sizes

Piston and ring listings distinguish standard-size parts from +0.5 mm oversize versions. Crankpin bearing sets are listed in standard size and −0.2 mm or −0.4 mm undersizes.

Injection-pump shims are cataloged in 0.20 mm, 0.25 mm, and 0.30 mm thicknesses, with separate part numbers across serial-number changes. These are replacement-part sizes, not instructions for selecting a shim stack or setting injection timing.

Searchable Parts Tables and PDF Navigation

Text search and section access: PDF text search is available, and embedded bookmarks cover the parts groups. The “Air Cleaner [Cab Type] [New Type]” bookmark has no working destination; that section begins on PDF p. 72. Small callouts in the dense HST exploded view are easier to follow when enlarged.

The ZIP contains one printable, 584-page PDF, including one parts-book instruction page and seven overview/index pages. Its 251 indexed parts sections contain 323 illustrated pages and 253 part-number table pages.