Description

Fiat-hitachi 650LC-3, 670LCH-3 Parts Catalog

Ordering the wrong piston pump or mixing up shuttle valve part numbers costs you time and money. I’ve seen it happen because guys relied on a third-party parts list instead of the factory catalog. This Fiat-hitachi 650LC-3, 670LCH-3 Parts Catalog is the original OEM document – 150 pages of exploded views, part numbers, quantities, and interchange codes. No reprints, no translations that lose meaning. Every valve group, every oil motor, every cylinder seal is listed with the exact factory reference. If you’re rebuilding a swing motor or swapping a control valve on a ZAXIS 650LC-3, this is the only source you trust.

Pump Device and T. Mission – What’s Inside

The manual breaks the hydraulic pump into sub-sections: PUMP DEVICE, T. MISSION (PUMP), and then individual piston and regulator groups. You get separate pages for the piston pump, the fan drive piston, and both gear and regulator assemblies. Need a part number for the regulator on a 650LC-3? Go to the PUMP ; REGULATOR chapter. The PDF shows each component in an exploded view with a reference number and the corresponding part code. Because it’s an OEM catalog, the numbers match exactly what Fiat-hitachi stamped on the original parts.

Valve Groups – Control, Pilot, Shuttle, Solenoid, and More

The VALVE section alone covers 16 subsections – control valves in four sheets, pilot valves for front/swing and travel, FC valve, shuttle valves (five sheets), plus solenoid, check, relief, and lock valves. That’s the granularity you need when you’re sitting in the cab with a pressure gauge and a blown O-ring. Each valve assembly includes the correct O-rings, springs, and spools. The interchangeability codes (Y, I, P, T) are explained on page 5 of the catalog so you know when a part supersedes or is restricted. I’ve used these codes to avoid buying a valve that won’t fit a serial number after 020001.

Cylinder Sections – Boom, Arm, Bucket

CYL.; BOOM (R), CYL.; BOOM (L), CYL.; ARM, CYL.; BUCKET, and even the bucket BE ARM cylinder – all listed with seal kits and rod numbers. When a boom cylinder droops and you suspect the drift-reduction valve, you can order the exact cartridge from the exploded view instead of guessing. This catalog won’t tell you how to rebuild the cylinder (that’s the workshop manual’s job), but it gives you the part numbers for every seal, bushing, and piston ring.

Source Authenticity – Why OEM Beats Aftermarket Copies

Aftermarket parts catalogs are often scans of scans, with blurred part numbers and missing interchange codes. This one is the original PDF from Hitachi’s engineering department – 150 pages, bilingual Japanese/English, with the same layout the dealer uses. The Automotive Industry Overview might teach you assembly line theory, but this catalog shows you exactly which bolt goes where. And because it’s the OEM file, the part numbers haven’t been renumbered or replaced by a third-party reseller. You order exactly what Hitachi intended.

Who Needs This Parts Catalog?

If you own a 650LC-3 or 670LCH-3 and do your own hydraulic repairs, you need this file on your tablet or laptop. Same if you work in a shop that takes in older Hitachi excavators. The parts index at the back lists every part number alphabetically so you can cross-reference without flipping through the whole document. Pair it with the Hitachi ZAXIS 650LC-3 670LCH-3 2006 Technical Manual – Section: Workshop Manual for torque specs and procedures. For other machines, check the Fiat-hitachi 850-3, 850LC-3, 870H-3, 870LCH-3 Parts Catalog or the Fiat-hitachi ZX50U-2 Parts Catalog – 120 Pages of OEM Specs.

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FAQ

Does this catalog cover the engine or electrical system?

No. This Parts Catalog covers only hydraulic and equipment components – pumps, motors, valves, cylinders, and the rotary group. Engine parts, electrical diagrams, and repair procedures are in the Technical Manual (workshop manual).

How do I read the interchangeability symbols on page 5?

Page 5 lists seven symbols: Y (unconditional interchangeability), I (use the alternate part instead), P (part prohibited – use alternate), T (combinational interchangeability), and others for size codes (OS/US), service parts (S), and optional items (OP). For example, if a valve shows P in the compatibility column, you cannot order that original part number – you must use the part listed in the alternate part column. Always check the serial number range (starting at 020001 for these models) to confirm which revision applies. The symbols are explained in both Japanese and English in a table on page 5, so keep that page open when you’re ordering.

Don’t waste shop time chasing phantom part numbers. Access the Factory Manual – this original Fiat-hitachi 650LC-3, 670LCH-3 Parts Catalog – and keep it loaded on your bench tablet. Your parts guy will thank you.