2004–2014 Kubota KX91-2, KX91-3 Mini Excavator OEM Parts Catalog (P/N 100A0035, 100A0180)

This Kubota parts catalog combines Book 100A0035 (KX91-2) and Book 100A0180 (KX91-3) for the 2004–2014 mini excavators. It pairs illustrated assemblies with part numbers, quantities, and component-specific serial references for maintenance and repair planning.

Text search and drawing detail: Part numbers, descriptions, and section headings are searchable, with embedded bookmarks for both model sections. Small callouts in dense pump and harness drawings are readable when enlarged.

• Engine and fuel: Parts breakdowns for the crankcase, oil pan, piston-crankshaft assemblies, cylinder head, nozzle holders, injection pumps, and glow plugs.

• Cooling, intake, and exhaust: Illustrated water flanges, thermostats, water pumps, radiators, air cleaners, and mufflers, with matching component lists.

• Hydraulic components: Pump housings, piston pumps, travel and swivel motors, rotary joint, control-valve spool sections, multi valve, TPSS valve, and pilot valve.

• Front attachments: Boom, arm, bucket, blade, and swing-cylinder breakdowns, including telescopic-arm components, bucket links, seal kits, and hydraulic piping layouts.

• Undercarriage and superstructure: Track frame, idler, track roller, crawler, swivel frame, swing bracket, and swivel-bearing illustrations with corresponding parts tables.

• Electrical equipment: Starter and alternator internal-parts views, switches, instrumentation, lighting, and main and cabin wiring-harness layouts.

• Operator's platform: Separate ROPS canopy and cabin assemblies, plus door, window, wiper, heater, defroster, and seat components.

This catalog is suited to mechanics and equipment owners who can identify assemblies from exploded views and match serial references when selecting repair parts.

Serial Breaks and Parts Selection

The parts tables pair numbered callouts with part numbers, quantities, S.No. applicability, and I/C interchangeability markings. Their legend distinguishes two-way interchangeability, one-way replacement, and parts that are not interchangeable.

Country-code guidance includes A, CA, and FR; individual tables also carry equipment and market remarks. These references help distinguish a usable replacement from a part intended for another configuration before ordering.

The KX91-2 engine listings, for example, separate crankcase, cylinder-head, and head-gasket versions at S/N 116859/116860. These engine-component references are distinct from the excavator serial breaks used elsewhere in the catalog.

Engine and Fuel-System Detail

The Piston and Crankshaft drawings distinguish standard and oversize pistons, undersize bearings, and side-metal options. Nozzle-holder components include adjusting washers; the KX91-3 book also breaks down the injection pump into plungers, delivery valves, tappets, and control-rack parts.

Hydraulic Assemblies and Cylinder Changes

Piston Pump (Component Parts), Rotary Joint, and the motor drawings identify internal parts and sealing components. Control-valve coverage reaches individual spool sections, including the KX91-3 boom-lock section.

For KX91-3 cylinder repair, S/N 20496/20497 separates several noninterchangeable bucket-cylinder internals, including the tube, piston rod, head, and piston. A later complete cylinder replacement does not make all of its internal parts interchangeable with the earlier version.

Telescopic Cylinder drawings have their own parts lists, while fixed-arm and telescopic bucket-link assemblies are listed separately. The KX91-2 catalog also distinguishes standard and long arms.

Electrical Layouts and Equipment Variants

The Electrical Wiring and Cabin (Electrical Wiring) pages show harness placement and attachment hardware. KX91-3 main-harness listings distinguish versions through S/N 20235, from 20236, and from 20642.

Rubber- and iron-crawler entries have separate applicability notes, including differences in idler and tensioning components. Cab and canopy parts are also identified separately.

Parts Reference and Service Limits

This is a parts reference, not a workshop repair manual. Exploded views support component identification but do not supply removal sequences, overhaul instructions, hydraulic test pressures, tightening torques, or diagnostic procedures. Wiring and oil-piping illustrations are parts layouts rather than circuit schematics.

High-pressure hydraulic sections and electrical systems carry inherent risks during service. Consult a qualified technician and use the appropriate service documentation before undertaking unfamiliar work.

PDF Sections and Page Count

The single printable 644-page PDF contains 334 pages for KX91-2 and 310 pages for KX91-3. These totals already include two parts-book instruction pages, one per model, and eight model-index pages.