Description

Komatsu PC290NLC-8K Parts Catalog

You are looking at a 957-page factory parts catalog for the Komatsu PC290NLC-8K. This isn’t a reprint or some aftermarket scan. This is the original PDF from Komatsu, covering serial number K50001-up, powered by the SAA6D107E-1E engine. If you are ordering parts for this machine and want the right part number the first time, this is your reference.

Engine Related Parts (B0) – Komatsu PC290NLC-8K Parts Catalog

Section B0 on page 001000 breaks down the engine side. You get engine mounts starting page 001001, air cleaner connecting parts in two halves, damper, muffler mounts split by serial number range (#K50001-K50370 and #K50371-), and the Diesel Particulate Filter mounting for #K50400- on page 001007. Every part number, quantity, and options column is there. Don’t guess at which cushion or bracket fits your machine – the serial number range is printed right next to the part number.

Cooling System and Fuel Tank Sections

C0 COOLING SYSTEM lives on page 002000. D0 FUEL TANK AND RELATED PARTS starts page 003000. If you need a radiator cap, hose, or fuel tank gasket, the factory diagram shows exactly which variation matches your serial number. Aftermarket catalogs often combine multiple models into one vague illustration. This catalog separates them by serial prefix.

What Electrical System Coverage Is Included?

Section E0 ELECTRICAL SYSTEM on page 004000 covers every harness, switch, sensor, and connector. The wiring components are listed with Komatsu part numbers. You can trace a failed alternator or starter back to the exact replacement using the options column. No generic “fits most” nonsense – if it says SN:K50001–, that’s the piece you need.

957 Pages of Factory Part Numbers

Every page forces you to cross-check the options column. For example, the muffler bracket assembly splits into two separate listings based on your machine’s serial number. Miss that and you’ll get the wrong bracket. The 957-page scope includes hydraulic system (H0), travel system (P0), undercarriage (R0), and work equipment (T0). You get the complete parts breakdown for the entire machine.

Diagnostics and Repairs: Why You Need the Parts Catalog

A service manual tells you how to remove the part. This catalog tells you which part to order. When you pull a blown engine mount or a leaking fuel line, you flip to the section – B0 or D0 – find the exploded view, and get the 20Y-01-41161 bracket or the 04020-01228 pin. No wasted trips to the dealer with an old part number. this Wikipedia article on diesel engines explains the SAA6D107E-1E platform, but the catalog gives you the exact component list for your serial number.

Source Authenticity: OEM vs Aftermarket Catalogs

Keen-eyed mechanics know that aftermarket parts databases repackage old data. This catalog is a direct OEM file. Look at page 001001 – Engine Mounts lists 20Y-01-41161 Bracket, options SN:K50001–. That level of detail is lost in third-party compilations. I have torqued enough bolts to know that guessing a part number costs time and money. Stick with the factory file.

Related manuals you might need: FAI Komatsu 67-80DT Parts Catalog – OEM Hydraulic Steering Piston List for a different machine, or Komatsu WH609-1 WH613-1 Parts Catalog | 347 Pages OEM and Komatsu PC14R Parts Catalog – Order Correct Parts Fast.

this Wikipedia article on diesel engines provides background on the engine family, but the part numbers here are specific to your machine.

Does this catalog include torque specs?

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

How do I identify which engine serial number range my machine falls into?

The catalog is organized by serial number range K50001-up. Each section has options like SN:K50001– for specific parts. You cross-reference your machine’s serial number with the ‘Options’ column. For example, the DPF section (#K50400-). If your machine has a serial number between K50371 and K50399, you use the muffler page 001006, not page 001005. Always check the options column against your machine’s plate before ordering.

Can I use this for the PC290LC-8K?

No. The PC290NLC-8K is a specific model. Check our related manual for the LC variant.

Is this a downloadable PDF?

Yes. After purchase, you get immediate access to the full 957-page PDF. No shipping, no waiting.

Access the Factory Manual now. Stop burning time and money on wrong part numbers. Open the catalog, find your serial number range, and order the exact brackets, cushions, and hardware Komatsu designed for your PC290NLC-8K.