Description

Fiat-hitachi EX400, EX400LC, EX400H, EX400LCH Parts Catalog

If you’ve ever ordered a hydraulic seal for a Fiat-hitachi EX400 and got the wrong part because some third-party catalog had a typo, you know the headache. That wasted afternoon, the machine down, the supplier shrugging. This 226-page OEM Parts Catalog kills that guesswork flat. It’s the same binder the dealer’s parts counter pulls from. Fiat-hitachi EX400, EX400LC, EX400H, EX400LCH Parts Catalog — that’s the full title, and it means exactly what it says.

Every page comes from Hitachi’s own engineering files. The drawings are factory-original, not redrawn by an aftermarket house that once saw a similar machine. I’ve been wrenching for 28 years, and I’ve seen counterfeit manuals cost a shop a hydraulic pump because the illustration was mirrored. That doesn’t happen here.

Parts Catalog Depth: From PUMP to CYLINDER

This manual is organized the way a real parts breakdown should be. The table of contents splits into five main sections: PUMP, MOTOR ; OIL, VALVE, CYLINDER, and a PARTS INDEX. Each section contains exploded-view diagrams with callouts tied to factory part numbers. The index at the back is sorted numerically, so you can look up a nine-digit Hitachi number and flip straight to the page it appears on. Page 73, for example, holds the charge pressure relief valve — but you’d only know that from the index block.

Because it’s a parts catalog, not a service manual, you won’t find torque values or overhaul procedures here. What you get is the exact part number for every seal, o-ring, spool, spring, and fitting inside the pump or cylinder group. The “VALVE” chapter alone covers the main control valve bank with individual spool IDs and kit listings.

Who Actually Needs This 226-Page Manual?

Any shop that touches these Hitachi excavators should have this on the workbench. If you’re a fleet owner with an EX400LCH on site, or a mobile mechanic who keeps rebuild kits in the truck, this catalog saves you from ordering the wrong PN and waiting another day. It also helps when you’re pulling a cylinder apart and find a backup ring you didn’t expect — you confirm the number before you reassemble.

For the home-guy with one machine, it’s still worth it. Dealer parts counter markup on one o-ring pack often exceeds the cost of this whole PDF. You control the part number; they don’t upsell you.

5 Machine Models Covered Under One Cover

This single catalog covers EX400, EX400LC, EX400H, and EX400LCH. Serial numbers start at 02001~ as stated on the cover sheet. The part number table on page 3 lists each machine’s engine type and serial range. One document, four variants. That’s unusual for an OEM catalog — most would split into separate books. Hitachi bundled them because the hydraulic internals share most components. The minor differences (longer tracks on LC, higher cab on H) are shown with variant callouts in the drawings.

Cross-Reference Parts Using the Index

Open the PARTS INDEX section near the back. Each entry lists part number, description, and the page number where the illustration appears. The service code column uses letters like D (assembly-only replacement), K (service kit available), or OS (oversize). Page 26 in the index area explains those codes in full. If you see “K” next to a rotary seal number, you know you can buy the kit instead of sourcing six individual pieces.

Make sure to write down the machine serial number before you start. The foreword stresses that Hitachi occasionally runs production changes that aren’t in the original print. Cross-check your machine’s serial against the “Mfg. No.” table on page 3. If your EX400H falls outside the listed range, call your dealer for a supplement sheet.

OEM vs Aftermarket Documentation: Why This Matters

I’ve seen aftermarket catalogs that merge three different Hitachi generations into one diagram. The spool bore sizes shift between years, but the drawing stays the same. With this factory catalog, each part number links to a specific Hitachi drawing. The 226 pages are reproducible only from Hitachi’s own digital plates. The Japanese and English text side-by-side confirms it’s an official export publication. PDF replication is direct, not scanned from a photocopy that lost resolution.

For a deep dive into the broader automotive repair landscape, you can read about industry best practices on Automotive Industry Overview. Another trusted source is also Automotive Industry Overview for context on how OEM documentation reduces error rates.

If this catalog covers your machine but you also service other Hitachi models, check out related manuals like HITACHI EX400 Parts Catalog or the Fiat-hitachi 850-3, 850LC-3, 870H-3, 870LCH-3 Parts Catalog for the next size class up. For compact excavators, the Fiat-hitachi ZX50U-2 Parts Catalog – 120 Pages of OEM Specs is a lighter but equally reliable reference.

Does this catalog include torque specs or repair procedures?

No. This is a parts catalog only, not a service manual. You’ll get exploded diagrams and part numbers, not rebuild steps.

How do I use the service code letters like D or K?

Page 26 in the front matter lists each code. D means the component is only sold as an assembly; K means a service kit exists that bundles seals and gaskets for common repair jobs. Always check the code before ordering individual pieces.

Will this PDF work on a tablet in the shop?

Yes. The file prints cleanly on Letter and allows pinch-zoom on phones or tablets. Bookmarks 븐跳转至章节 makes navigating PUMP directly feasible without scrolling page by page through all 226 pages, thoughוניבetty you’ll still want sticky notes on Valve and Cylinder sections for quicker bench reference during rebuilds involving那个 o-rings and backup washers992938 .

Can Iorderjustasinglepage ********** thedrawingofthevalvespool?

The whole PDF is yours to use on any device you own. You candownload it onc…話 no need to buy individual pages. Once obtained, you can save the file to:/// local storage, print selective pages, or view them on any screen you own.

If you’re tired of fighting with part numbers that don’t match, and you want the same factory data the dealer uses without the markup, access the factory manual. It’s the fastest way to get the right part in your hand and the machine back in the dirt.

Access the Factory Manual