Description

Hitachi Sumitomo ZAXIS BOUR-2 Parts Catalog – 300 Pages of Factory Spec Parts Identification

You’ve been there – machine down, parts counter guy asks for a part number you don’t have, and you end up ordering the wrong hydraulic line or a seal that doesn’t fit. That waste of time costs you money. I’ve seen it a hundred times. The Hitachi Sumitomo ZAXIS BOUR-2 Parts Catalog is the only document that gives you factory-approved part numbers, exploded views, and compatibility codes straight from the manufacturer. Not a reprint, not a third-party guess – the real OEM file used by dealers to order components. 300 pages of part diagrams for everything from the engine support to the blade cylinder.

300 Pages of Factory Part Numbers – Exploded Views for Every Section

This catalog breaks down the machine into three major groups: Upperstructure, Undercarriage, and Front-end Attachment. Inside Upperstructure you’ll find the complete Engine section with parts for the support mounts, muffler, air cleaner (including the double-element version), and the Fuel system – from the tank through the piping. The Undercarriage covers track frame, travel device, front idler, and both rubber and steel crawler options. Each page gives you the part number, quantity per machine, and a diagram showing exactly where the part goes. If you’re rebuilding an offset boom or replacing a lower roller, you’ll see every bolt and shim listed.

Why OEM Documentation Matters for Parts Ordering

I’ve had more than one argument with a parts supplier who insisted I needed a different seal because their aftermarket catalog said so. That’s why I trust only factory-published catalogs. This one comes from Hitachi Sumitomo directly – note the foreword on page 5 says “According to Hitachi’s continuous effort to improve the product quality, descriptions in the Parts Catalog may be slightly different from your machine.” That’s their disclaimer, but it also tells you this is the real deal. The part numbers are the ones used by the factory assembly line. If you need an engine gasket set for the Yanmar 3TNV88, you’ll find the OEM number here, not a generic cross-reference.

Engine and Fuel System Sections – Specific Coverage

The Engine section includes separate listings for Engine Parts, Engine Support, and the main Engine assembly itself. The Fuel section covers Fuel Tank and Fuel Piping. If your ZAXIS BOUR-2 has an air conditioner, the Pump Device and Pump Device (For Air Conditioner) are listed separately. Every hose clamp, bracket, and grommet is accounted for. You can also find the Auto-Idle Piping (With Aux. Port) and (Without Aux. Port) – so you know exactly which version your machine has before ordering.

How to Use the Compatibility Codes – Don’t Order the Wrong Part

Flip to page 5 and read the symbol legend. There’s a column for service codes and interchangeability. When you see a “W” code, it means the part requires additional processing at the job site – you can’t just bolt it on. “H” means precision part – send it to a dealer for repair. “D” means you cannot order that component individually; you have to buy the whole assembly. Use those codes to avoid buying a part that won’t fit or can’t be installed without special tools. The catalog also shows superseded part numbers in the “Alternative Parts” column. If you see a “Y” code, the part is fully interchangeable with the original.

Audience: Who Needs This Catalog

If you own a ZAXIS BOUR-2 excavator and do your own maintenance – or if you manage a small fleet and want to avoid dealer markups on parts – this manual is for you. The same catalog is used by service writers at Hitachi dealers to generate quotes. Having it on your tablet or printed out means you can walk into any parts store and give them the exact Hitachi part number. Beginners: don’t be intimidated by the 300 pages. Start with the section that matches the area you’re working on – say, the Control Valve (With Aux. Port) or the Pilot Piping (JIS) – and work through the diagram.

What is the difference between this Parts Catalog and a service manual?

A service manual tells you how to take things apart and what torque to use. This Parts Catalog only lists part numbers, quantities, and exploded diagrams. You need both. This catalog won’t tell you how to rebuild the swing device – it tells you which seal kit number to order.

Does this catalog include torque specifications?

No.

Can I use this to order parts for my 2005 ZAXIS BOUR-2?

Yes – the catalog covers serial numbers from 030001 onward. Check the Product Identification Number on your machine. If your PIN falls within that range, the parts listed are correct. For engine parts, you’ll need the separate engine parts catalog for the Yanmar 3TNV88, but this book covers everything else on the excavator – hydraulic system, undercarriage, cab, canopy, and front attachment.

What do the symbols like W, H, D mean in the parts list?

Page 5 explains each symbol. W means field modification required (cut, weld, etc.). H means precision part – dealer repair only. D means you cannot order that item individually; you must order the parent assembly. Other codes: K (service kit part), R (quantity varies per serial number), Z (engine-related). Use these to avoid ordering a part that can’t be installed without extra work.

You need the right part the first time. I’ve torqued enough bolts to know that guessing costs hours and cash. This catalog gives you the factory part numbers – no aftermarket cross-reference, no guesswork. Access the Factory Manual now and keep a copy in the shop or on your phone for the next rebuild. Related manuals: HITACHI ZAXIS BOUR-2 Parts Catalog”>HITACHI ZAXIS BOUR-2 Parts Catalog (that’s this one) – also check the Hitachi Sumitomo ZAXIS850-3 Series Parts Catalog – 451 Pages”>Hitachi Sumitomo ZAXIS850-3 Series Parts Catalog – 451 Pages for larger machines, and the Hitachi Sumitomo ZAXIS 600-650LCH Parts Catalog – 162 Pages”>Hitachi Sumitomo ZAXIS 600-650LCH Parts Catalog – 162 Pages for a mid-size option. For industry context, read the Automotive Industry Overview”>Automotive Industry Overview and also the Automotive Industry Overview”>Automotive Industry Overview for background on how OEM documentation protects your investment.