Description

Kubota L4310DT, L4310GST, L4310HST, L4310GST CAB, L4310HST CAB Parts Catalog

You need a part number. You look it up in some aftermarket list. That part shows up wrong. You lose a day. I’ve seen it happen too many times. This is the Kubota L4310DT, L4310GST, L4310HST, L4310GST CAB, L4310HST CAB Parts Catalog – 584 pages pulled straight from Kubota’s factory print. No third-party re-draws, no guesswork. You open it, you find the exploded view, you read the reference number, and you order the exact piece. End of story.

Parts Catalog Layout: The Instructions from Page 1

Page 1 spells out how to read this thing. Every heading at the top of a picture page matches the heading on the part number page – so you never flip back and forth wondering which diagram goes with which list. The columns are REF.No (the number pointing to the part in the picture), Part No. (the actual Kubota part number), Description, Q’ty (quantity used on that page), and S.No. (serial number range – the book shows ≥ and ≤ symbols so you know if your tractor’s serial falls inside). Next is I/C – interchangeability. Diamond symbols tell you if the part swaps forward or backward across serial breaks. Arrow symbols show direction: ← means new replaces old, → means old works for new. Remarks column flags country-specific exceptions. Around page 1 you’ll see country codes – A for USA, CA for Canada, FR for France, etc. If the remarks say EXCEPT [FR], that part works everywhere except France – which means it works here in the States.

Engine and Fuel System Sections (Exact Chapter Names)

Go to the ENGINE group. You get CRANKCASE, OIL PAN, CYLINDER HEAD, GEAR CASE, HEAD COVER, MAIN BEARING CASE, CAMSHAFT AND IDLE GEAR SHAFT, PISTON AND CRANKSHAFT. Then FLYWHEEL split by whether you have independent PTO or not. Also FUEL CAMSHAFT, ENGINE STOP LEVER, INJECTION PUMP plus its component parts, GOVERNOR, SPEED CONTROL PLATE, NOZZLE HOLDER AND GLOW PLUG, NOZZLE HOLDER COMPONENT PARTS, WATER FLANGE AND THERMOSTAT (CAB TYPE), WATER PUMP, VALVE AND ROCKER ARM, INLET MANIFOLD (CAB TYPE), UPPER GASKET KIT, LOWER GASKET KIT. That’s just the engine. Every fastener, every gasket, every internal part of the Cylinder, Camshaft, Crankshaft, Valve train – all laid out with Kubota’s own part numbers. If you’re rebuilding an L4310HST engine, you pull the gasket kit from the UPPER GASKET KIT section and confirm your serial number range. No cross-referencing aftermarket sites.

Fuel System and Electrical – CAB Type Variants

Under FUEL SYSTEM you get FUEL TANK (CAB TYPE), FUEL PIPE AND FUEL FILTER, FUEL FILTER COMPONENT PARTS. Then the electrical system: ALTERNATOR (GST TYPE CAB TYPE and HST TYPE CAB TYPE), ALTERNATOR COMPONENT PARTS, STARTER and its components, BATTERY (CAB TYPE). Switch banks are separated by GST vs HST, and within HST they’re broken into OLD TYPE and NEW TYPE based on serial numbers. That’s critical – if you’ve got an L4310GST CAB and you order the wrong switch bank because you used a generic diagram, you’re splicing wires. This catalog tells you exactly which switch fits which serial range. Electrical wiring diagrams are listed for both GST and HST, again with OLD/NEW splits. You want the correct ROOM LIGHT or WIPER part? It’s under LIGHT 1, LIGHT 2, WORKING LIGHT, WIPER (A and CA versions for USA and Canada).

Transmission, Clutch, and Drivetrain – GST vs HST Differences

Clutch section covers CLUTCH, CLUTCH LEVER, CLUTCH PEDAL with separate headings for GST and HST. CLUTCH HOUSING is broken by transmission type. Then GST VALVE and its component parts (multiple pages). MID CASE for GST with independent PTO and HST with OLD/NEW splits. HST component parts. TRANSMISSION CASE, MAIN SHAFT (except HST vs HST version), INPUT SHAFT, COUNTERSHAFT, OUTPUT SHAFT. Hydraulic clutch for GST with independent PTO. Shuttle shaft, range gear shaft, spiral bevel pinion for non-HST and HST. Rear differential, PTO countershaft, PTO clutch for both types. All the shift forks – MAIN GEAR SHIFT FORK, SHUTTLE SHIFT FORK, RANGE GEAR SHIFT FORK, CREEP GEAR SHIFT FORK, DIFFERENTIAL LOCK SHIFT FORK. Rear axle, brake assemblies, brake rods, shift levers, cruise control for HST, neutral holder link, speed control pedal. If you’re tracking down a worn countershaft bearing on an L4310DT, you open the COUNTERSHAFT [GST TYPE] section and read the reference number.

Who Actually Needs This 584-Page Parts Catalog?

Two groups: DIY owners who keep their L4310 running in their home garage, and shop owners who bill by the job. For the DIY guy, you’ve got the tractor split apart on the bench. You need to know which piston ring set matches your engine serial. You flip to PISTON AND CRANKSHAFT, verify the serial number range column, and order the correct set. No returns. For the shop owner, you hand this to a junior tech – he can find the part number without bothering you. He’ll see the interchangeability codes and know if an older flywheel will fit a newer housing. That saves hours per job. And since this is a Access the Factory Manual, you get it instantly, no shipping wait.

OEM vs Aftermarket Parts Sources

I’ve worked on tractors since the 90s. Aftermarket parts catalogs often miss the CAB-specific brackets, the country-code variants, or the serial number breaks. This document is a direct Kubota print – the same PDF a dealer pulls up on his terminal. You see every detail from the ALL PRODUCT INDEX at the front (page 2 lists the model numbers L4310DT-GST-C/HST-C) down to the last LABEL section. When you’re dealing with a Fuel Camshaft or a STOP SOLENOID/ENGINE STOP WIRE, the OEM part number is the only one you can trust. Don’t waste time with compiled lists that combine multiple brands. This 584-page catalog covers L4310DT, L4310GST, L4310HST, L4310GST CAB, L4310HST CAB – period.

Related manuals you might need for other Kubota equipment: Kubota V3300-T-E2B-EPS-1 Parts Catalog – 53-Page OEM Parts Breakdown, Kubota YU4210, YW0981 Parts Catalog – 274-Page OEM Parts Breakdown, Kubota RCK60-27B Parts Catalog – 27-Page OEM Breakdown. For broader industry context, see the Automotive Industry Overview. And if you want to verify the importance of OEM documentation in the Automotive Industry Overview, that’s the same Wikipedia page.

Can I use this catalog to find torque specs or repair procedures?

No. This is a parts catalog – it lists part numbers, quantities, and interchangeability codes. For torque specs and repair steps you’d need the separate service manual. But if you’re rebuilding an engine, you still need this catalog to order the correct gasket kit and piston rings.

How do I know if a part from an older L4310 will fit my newer L4310HST CAB?

Look at the I/C column in the catalog. A double arrow means the part interchanges both ways. A single arrow (← or →) shows direction. The S.No. column gives the serial number range. If your serial falls inside the range, the part fits. If the remarks say EXCEPT [CA], that part is not used on Canadian models. Always check the Country Code table on page 1 – the catalog uses A for USA and CA for Canada. If you ignore those codes, you might order a switch bracket that only fits French-market tractors.

Bottom line: You need the right part number the first time. This OEM Kubota parts catalog gives you 584 pages of verified data. Access the Factory Manual now – PDF delivered instantly, no shipping, no waiting.