Description

Kubota KX91-2 Parts Catalog – 334-Page Factory Parts Breakdown

If you’ve ever ordered a part for your KX91-2 and gotten the wrong piece because the aftermarket listing said “fits” but the bolt holes didn’t line up, you know the pain. That costs money and downtime. This is the OEM Kubota KX91-2 Parts Catalog – 334 pages of factory part numbers, exploded diagrams, and interchangeability codes. No aftermarket translation. No guesswork.

7 Major System Groups in This Catalog

The TOC splits the machine into seven big sections: Basic Engine, Fuel System, Cooling System, Electrical System, Hydraulic System, Front Attachments, Track Frame, Swivel Frame, Operator’s Platform, Accessories. Every nut, seal, and bracket is listed under one of those. You don’t flip through a generic index – you go straight to the group. Crankshaft? Under Basic Engine. Camshaft? Same section. Cylinder head, Valve train, all of it. The Fuel System section covers the Injection Pump, Nozzle Holder, Glow Plug, Fuel Piping, Fuel Filter – every line item with a factory part number.

What the Parts Index Tells You

The catalog opens with an index page (Ref. KX91-2 Page 41032). It lists each subsystem – for example BASIC ENGINE includes CRANKCASE, OIL PAN, PISTON AND CRANKSHAFT, MAIN BEARING CASE, CAMSHAFT, CYLINDER HEAD, VALVE AND ROCKER ARM, and so on. Each gets a book code (100A0035). That code tells you the drawing set. If you need the part number for a specific valve, you cross-reference the Ref.No and Part No. columns. The manual explains the columns: Ref.No is the callout number on the diagram, Part No. is the actual factory part number, Description tells you what it is, Q’ty shows how many you need, S.No. gives the serial number range it fits, I/C tells you if it swaps between older and newer machines, and Remarks can flag country-specific versions. That fifth column – S.No. – is critical. Your serial number must be ≥ or ≤ the range shown. Skip that step and you order the wrong part.

Read the Interchangeability Codes Before You Order

Under the I/C column, you’ll see symbols: ↔ (interchangeable both ways), # (not interchangeable), ← (new for old), → (old for new). That’s factory data. Aftermarket catalogs often ignore these codes and just list a part as “fits all”, which is a lie. For example, if the Remarks column says “EXCEPT [FR]”, that part works everywhere except France. The catalog includes a country code table – A for USA, CA for Canada, FR for France, GR for Greece, PO for Portugal, AU for Australia. If you’re in the US and the part says EXCEPT [FR], it’s fine. But if you see EXCEPT [US], that part doesn’t fit your machine. That level of detail is why you buy OEM documentation.

Fuel System Components: Nozzle Holder, Injection Pump, and More

The Fuel System section (pages under that group) includes the Nozzle Holder and Glow Plug as a single assembly, then a separate page for Nozzle Holder Component Parts – which gives you the breakdown of the holder itself. Speed Control Plate, Stop Solenoid, Governor, Injection Pump, Fuel Camshaft – all listed with individual part numbers. The Fuel Piping section shows every line from the tank to the filter to the injection pump. If you’re replacing a leaking fuel line, you get the exact OEM hose part number, not a “universal” hose that doesn’t bend right. The Fuel Filter has its own component parts page, and the Fuel Tank is listed separately.

Country Codes: Why Your Part Might Not Fit

The catalog warns you that it can contain information for multiple countries. The country codes table at the beginning saves you from ordering a part that only fits a French-market machine. Most DIY guys think a Kubota is a Kubota everywhere – wrong. Emissions, hydraulics, and even engine brackets vary by region. This catalog gives you the tools to check. The Remarks column might say “EXCEPT [A]” – that part is not for USA machines. You need to look at that every time.

Does This Catalog Cover the Hydraulic System?

Yes – and it’s detailed. The Hydraulic System section starts with Pump Housing, then Piston Pump and Component Parts (two entries), Hydraulic Pump and Component Parts, Drive Motor, Swivel Motor, Rotary Joint, Oil Tank, Control Valve, and then a dozen spool sections – Bucket, Boom, Travel RH/LH, Arm, S/P, Travel Straight, Swing/Blade, Swivel, plus Change Valves, Multi Valve, TPSS Valve. Oil piping is split into Suction, Delivery, Return, Oil Cooler, Travel LH/RH, Swivel 1 and 2, Swing, Lock, Boom 1 and 2, Arm 1 and 2, Bucket 1 and 2, Blade, Clamp, S/P. Every line, every seal. If you’re rebuilding a control valve, you need the spool section parts – this catalog gives you the exact part number for each spool and seal.

How many pages does this catalog have?

334 pages.

Is this the same as a service repair manual?

No. A service manual tells you how to take it apart and what torque to use. A parts catalog gives you the factory part numbers, diagrams, interchange codes, and serial number ranges so you order the correct replacement. You need both for a full rebuild. The service manual has the procedures; this catalog has the parts. If you only have a aftermarket parts listing, you’re guessing. This catalog is the factory source for part numbers, verified by Kubota. The index lists every subsystem from CRANKCASE to CABIN ELECTRICAL WIRING, and each part gets a Ref.No, Part No., Description, Q’ty, S.No., I/C, and Remarks column. The hydraulic section alone covers over 40 subassemblies. For the price of one wrong part, this catalog pays for itself.

Stop wasting time cross-referencing aftermarket databases. Get the factory data – 334 pages, direct from Kubota. Kubota KX91-2 Parts Catalog is the master list. For other Kubota engines, see Kubota V3300-T-E2B-EPS-1 Parts Catalog – 53-Page OEM Parts Breakdown or Kubota YU4210, YW0981 Parts Catalog – 274-Page OEM Parts Breakdown. The automotive industry relies on OEM documentation for a reason – factory specs eliminate errors. Automotive Industry Overview Likewise, Automotive Industry Overview shows the importance of standardization. Access the Factory Manual and get the right parts the first time.