Hitachi EX400-3 EX400LC-3 EX400H-3 EX400LCH-3 Excavator Parts Catalog Manual PDF

Description

Hitachi EX400-3 EX400LC-3 EX400H-3 EX400LCH-3 Excavator Parts Catalog

This is the complete illustrated parts catalog for the Hitachi EX400-3, EX400LC-3, EX400H-3 and EX400LCH-3 hydraulic excavators. Published under part number P166-1-3, it is the reference document used to identify, order and cross-check every component on these machines from serial number 05001 upward. Every assembly is broken down into exploded illustrations with item callouts, followed by a listing table giving part number, part name, quantity, service code, applicable serial range and interchangeability data.

File Details

• Manual type: Illustrated Parts Catalog
• Brand: Hitachi
• Models covered: EX400-3, EX400LC-3, EX400H-3, EX400LCH-3
• Document number: P166-1-3
• Serial number range: 05001 and up
• Language: Japanese / English (bilingual)
• Page count: 565 pages
• File format: PDF
• Engine parts note: Engine components are covered in the separate Isuzu diesel engine 6RB1TPQ parts catalog

Chapters Covered

The catalog walks through every major group on the machine. Each group is presented with an exploded drawing and a matching parts table.

• Frame (1) and Frame (2)
• Counterweight
• Engine mounting and accessories
• Radiator and Radiator Support
• Reserve Tank
• Air Cleaner and Muffler
• Bypass Filter (Engine Oil)
• Fuel Pipings, Fuel Tank, Fuel Feed Pump (Option), Fuel Double Filter (Option)
• Pump Device (1), Pump Device (2) and Pump Device Support
• Swing Device: Right (1), Right (2), Left (1), Left (2) and Swing Device Support
• Oil Tank
• Suction Pipings, Delivery Pipings
• Return Pipings (1), (2), (3)
• Drain Pipings, Drain Pipings (1), Drain Pipings (2)
• Main Pipings (1), (2), (3), (4)
• Swing Pipings
• Engine Control Motor and Engine Control Cable
• Control Lever (1), (2), (3)
• Pilot Pipings (2-1) through (7-2) including STD and USA variants
• Console (R), Console (L) STD and USA
• Switch Box
• Gauge Panel, Radio STD, Radio USA
• Electric Parts (1) through (9), Motion Alarm
• Window Washer, Car Heater and Car Heater Parts
• Air-Conditioner (1), (2), (3), Air-Con Unit, Air-Con Controller, Compressor, Heater Pipings
• Cab Group (1), (2), Cover groups, Door Lock (1)(2)(3), Engine Cover
• Under Cover — EX400-3 / EX400LC-3 and EX400H-3 / EX400LCH-3
• Track Frame (STD Track) and Track Frame (LC Track)
• Track Guard and Full-Length Track Guard
• Swing Bearing
• Travel Device
• Front Idler and Adjuster
• Upper Roller and Lower Roller (STD and LC)
• Track-Link 600G (STD and LC)
• Seat Belt
• Lubricate Pipings (STD Boom, HD Boom, Long Boom, STD Arm, HD Arm, Short Arm, Semi-Long Arm, Long Arm)
• Hose Rupture Valve Pipings (Boom 1–4 and Arm 1–2)
• Breaker Parts — Control Pedal, Pilot Pipings, Main Pipings, Filter, NPK and Okada/Furukawa front pipings
• Optional Parts — Hot & Cool Box, Right Step, Ladder, Air Cleaner Cover, Lubricator, Counterweight removal device, Weight lifting device, Cylinder, Control System, Pilot Pipings, High-Pressure Pipings
• Tools and Spare Parts
• Name-Plates
• Numerical Parts Index

What This Hitachi Excavator Parts Catalog Gives You

A parts catalog is not a repair manual — it is the opposite end of the workshop. Where a service book tells you how to take something apart, a parts catalog tells you exactly what each component is called, how many of them sit inside one assembly, and whether a newer number has replaced the original. That is precisely what this document does for the EX400-3 family.

Every exploded drawing in this Hitachi EX400-3 EX400LC-3 parts catalog is keyed to a parts table that shows the item number, the Hitachi part number, the part name in both Japanese and English, the quantity required, and a service code. The service code column is the part most owners overlook — it flags whether a part requires workshop fitting, whether it is a precision component, whether it is only available as part of a larger assembly, whether it belongs to a service kit, or whether the quantity changes from machine to machine. For a machine of this size, that column alone can save a mis-ordered part and a week of downtime.

The interchangeability column goes further. It shows whether an improved part can be substituted for the original, whether an original must not be reused, whether two or more parts are interchangeable as an assembly, and whether the substitution works in both directions. For anyone maintaining an older EX400-3 or EX400LC-3, this is the data that determines whether the part on the shelf still fits the machine in the yard.

Serial Number and Specification Coverage

This catalog is written for machines from serial number 05001 and up, and serial ranges are printed against individual parts where fitment changes across the production run. That matters because Hitachi revised several assemblies — swing devices, pilot piping runs, consoles, air-conditioning controllers, electric parts and covers — during the life of the EX400-3 series. The listing entries carry their own applicable serial range wherever a component was superseded, so you can confirm fitment before ordering rather than after.

Two identification rules are printed at the front of the book and worth repeating here. First, the machine serial number is stamped on the name-plate fitted to the main frame, on the lower right side of the cab. Second, the front attachment has its own number — the “FRONT No.” stamped on the name-plate of each front attachment — and this catalog uses that number to distinguish attachments, with an “F” prefix on listings where the front number applies. Engine parts are not in this book at all; they are handled in the separate Isuzu 6RB1TPQ diesel engine parts catalog.

Standard and Regional Specification Models

Hitachi built the EX400-3 series for more than one market, and this catalog reflects it. Parts tables that differ between the standard machine and the North American specification machine are marked accordingly — a listing suffixed <STD> applies to the standard specification model, a listing suffixed <USA> applies to machines delivered to the United States and Canada, and a listing with no suffix is common to all models. You will see this most often in the pilot pipings, consoles, radio, electric parts and air-conditioning sections, where the regional build genuinely differs. Reading the suffix before ordering is not optional.

How the Listings Are Structured

Each parts table follows the same layout throughout the book. The item column matches the callout number on the exploded drawing directly above it. Assembly parts are shown with a dash and are indented beneath the parent assembly, with deeper dash levels showing sub-components. The quantity column shows the number used for one machine — except for components, where it shows the number used in one assembly. The replaceable part column carries the substitute number and the quantity required when a substitution is called for.

The numerical parts index sits at the back of the catalog, letting you work in reverse: if you already have a part number in hand, you can find every page in the book where that number appears, along with any newly added parts flagged with a star.

Who This Hitachi Parts Catalog Is For

This book suits the owner-operator of an EX400-3, EX400LC-3, EX400H-3 or EX400LCH-3 who wants to order the right part the first time. It suits the independent workshop rebuilding a swing device, travel device or hydraulic piping run and needing the correct fasteners, seals, bushings, shims and hose lengths. It suits the parts counter that needs to confirm interchangeability before quoting. And it suits anyone restoring or keeping one of these machines in service who is tired of being handed a part number with no drawing to confirm it against.

Buy the Hitachi EX400-3 EX400LC-3 EX400H-3 EX400LCH-3 Parts Catalog

With this parts catalog on hand, you can identify any component on the machine from its exploded drawing, confirm the correct part number, quantity and service code, check whether a superseded number has replaced it, and verify serial number and regional fitment before spending money. For a machine this size, a single avoided mis-order pays for the book many times over — and the exploded views make assembly order obvious even for jobs you have not tackled before.

IMAGES PREVIEW

The catalog is delivered as an instant PDF download after purchase. Nothing ships, nothing waits on a courier, and there is no regional restriction. Open it on a laptop in the workshop, a tablet beside the machine, or a phone at the parts counter, and print any drawing or parts table you want to keep beside you while you work. Once downloaded, it is yours to keep and use for as long as you own the machine.