Description

Kubota K800 Parts Catalog

If you are rebuilding a Kubota K800 or chasing a parts number for a dead machine, this is the document you need. Not a scanned imitation, not a filtered knockoff — this is the original factory Kubota K800 Parts Catalog, 218 pages of exploded views and OEM part numbers. Without it, you will guess on camshaft bearings, waste cash on wrong seals, and lose time chasing cross-references that don’t exist. I have watched technicians order a cylinder head gasket from a generic listing and end up with a different compression height. Do that once and you learn. Get the factory catalog first.

What This 218-Page Parts Catalog Covers

The document builds from the block up. Sections like CRANK_CASE, OIL_PAN, and PISTON_AND_CRANKSHAFT give you every screw, o-ring, and plug. The cylinder head and valve train are broken into CYLINDER_HEAD, VALVE_AND_ROCKER_ARM, and CYLINDER_HEAD_COVER. Each page lists part numbers, quantities, and weight in both kgf and lb. For example, the crankcase main assembly weighs 47.96 lb according to the spec on page 2 of the catalog. That kind of detail matters when you are checking if a replacement is physically identical. The catalog also covers fuel system (INJECTION_PUMP, NOZZLE_HOLDER_GLOW_PLUG, FUEL_CAMSHAFT), hydraulics (CONTROL_VALVE, SPOOL_SECTIONS for boom, arm, bucket, swing, travel), undercarriage (TRACK_FRAME, IDLER, TRACK_ROLLER), and electrical (BATTERY, REGULATOR_HORN, SWITCH_METER, ELECTRICAL_WIRING). If you can see it on the machine, it is in here.

Camshaft and Cylinder Head: Factory Breakdown

The camshaft section (CAMSHAFT) shows the exact part numbers for the cam, bearings, and thrust plate. The cylinder head section (CYLINDER_HEAD) includes the head gasket, valves, guides, and seals. The valve and rocker arm assembly (VALVE_AND_ROCKER_ARM) lists individual components like rocker shafts, adjusting screws, and valve springs. If you need a camshaft cover, the part number 16851-16212 appears with weight 0.066 lb. That precision eliminates the guesswork that leads to ordering a cam from a different Kubota engine. Stick with the factory numbers.

Fuel System – Injection Pump, Nozzle Holder, and Fuel Camshaft

Fuel components are where aftermarket catalogs cause the most trouble. This catalog isolates the injection pump (INJECTION_PUMP and INJECTION_PUMP_COMPONENT_PARTS), nozzle holder with glow plug (NOZZLE_HOLDER_GLOW_PLUG and NOZZLE_HOLDER_COMPONENT_PARTS), and the separate fuel camshaft (FUEL_CAMSHAFT). The injection pump assembly is broken down into its sub-parts, so you can order the plunger, delivery valve, or governor weights individually. The fuel piping section (FUEL_PIPING) and fuel tank (FUEL_TANK) round out the system. Without this catalog, you risk installing a pump with the wrong internal timing because the part number looks similar. The factory document prevents that.

3 Reasons to Use the OEM Parts Catalog Over Aftermarket Versions

First, part numbers are verified against the original engineering drawings. Aftermarket catalogs often merge multiple revisions into one listing, so you might get a part that fits but has different material or a critical dimension changed. Second, the exploded diagrams show the correct assembly order and orientation. When you are rebuilding a control valve bank, seeing how the spool sections stack (SPOOL_SECTION_SWING, SPOOL_SECTION_TRAVEL_LH, etc.) avoids reassembly mistakes. Third, the weight data in the catalog lets you verify you have the right part when two versions look identical but differ in material density. The difference between a 2.42 lb oil pan and a 2.85 lb oil pan tells you it is a different casting. That data is on every page.

Who Needs This Parts Catalog?

DIY owners working on a K800 engine overhaul, hydraulic system repair, or undercarriage replacement. Professionals who need to order parts fast without second-guessing a cross-reference. Home garage enthusiasts restoring a K800 who want to ensure every bolt and seal is correct. Beginners who have never seen inside a diesel engine: the exploded diagrams show where each part fits, so you can disassemble and reassemble with confidence. If you plan to touch any of the 60+ assemblies listed (from AIR_CLEANER_INLET_MANIFOLD to ROTARY_JOINT to BOOM), this catalog saves you phone calls to the dealer and returns to the parts counter.

Where Does This Catalog Come From?

This is an original OEM factory parts catalog published by Kubota for the K800 model. It is not a third-party compilation or a reprinted aftermarket workbook. The document structure matches the official Kubota parts system used by dealerships. The part numbers and exploded views are direct scans from the factory database. For general context on why OEM documentation matters in the automotive industry, see the Automotive Industry Overview and Automotive Industry Overview. If you work on other Kubota models, check these related catalogs: Kubota V3300-T-E2B-EPS-1 Parts Catalog – 53-Page OEM Parts Breakdown, Kubota YU4210, YW0981 Parts Catalog – 274-Page OEM Parts Breakdown, and Kubota RCK60-27B Parts Catalog – 27-Page OEM Breakdown.

Frequently Asked Questions

Does this catalog include torque specs?

No. This is a parts catalog, not a service manual. It lists part numbers only.

Can I use this to rebuild my K800 engine?

It helps you identify each part and order correct replacements, but you’ll need a service manual for procedures. Having the parts catalog alongside the service manual ensures you don’t accidentally install a different revision part. For example, the cylinder head section shows head gasket part numbers and different valve sets. Without this catalog, you might order wrong valve springs from an aftermarket source, leading to valve float or improper seating. Use the catalog to cross-reference every part you remove against the exploded diagram.

Get a copy of the Kubota K800 Parts Catalog on your bench. It pays for itself the first time you avoid a wrong part order. Access the Factory Manual from AutoRepairManuals and have the exact reference the factory uses.