Part of the Hitachi Parts Manuals.
Every single piece of your excavator is precisely mapped out in this 270-page Hitachi EX12 parts catalog pdf (OEM #P1A5-1-5). You get clear exploded views for the entire machine, breaking down everything from the main hydraulic gear pump and spool sections down to the steel crawler tracks and cab assemblies. Open to highly detailed parts lists featuring factory part numbers, hardware descriptions, and component identifiers, ensuring you order the correct replacements on the very first try. Track down the exact mounting hardware for the 410mm wide bucket or verify the correct 15A and 5A fuses for your gauge panel before calling the dealer parts counter. Wrong shipments keep your machine dead in the dirt. Grab this text-searchable file, click directly through the bookmarks to find your specific assembly, and get your equipment back to work.
What's Inside This Hitachi EX12 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Air Cleaner, Fuel Tank | |
| Cooling System | Radiator, Radiator Support, Reserve Tank | |
| Engine | Muffler, Lubricate Pipings | |
| Electrical System | Gauge Panel _Canopy_, Gauge Panel _Canopy, Cab_, Wire Harness | |
| Hydraulics & 3-Point Hitch | Pump Device, Extra Pipings _Hydraulic Ports_, Pump;Gear, Valve;Control, Valve;Pilot, Valve;Relief | |
| Body & Operator Station | Frame, Oil Tank, Console _Canopy_, Console _Cab_, Canopy, Floor, Seat, Cover, Track Frame, Travel Pipings Cover, Cab Ass'Y, Cab, Cab _Window Washer_, Engine Cover Guard | |
| Decals & Accessories | Tool | |
| Other Components | Counterweight, Engine, Fule Pipings, Swing Device, Swing Post, Low Pressure Pipings, Main Pipings, Engine Control, Control Lever, Control Pedal, Lever Lock, Swing Lock, Lever Link Support, Lever Link, Pilot Pipings, Console |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuse (5A) | 5A | p. 100 |
| Fuse (15A) | 15A | p. 100 |
Hitachi EX12 Common Problems This Manual Covers
Bucket teeth fell off the Hitachi EX12 excavator and need to find the correct replacement hardware part numbers.
Inspect the bucket components diagram on page 152. Verify if you have the 0.035 capacity, 410Mm Wide bucket assembly. Locate the exact part numbers for the replacement teeth, bolts, nuts, and boss shims to order the correct ground engaging tools.
Manual Section: Bucket 0.035 (410Mm Wide) p. 152Monitor display goes blank and cannot identify the correct replacement fuse block components or electrical terminal numbers.
Review the electrical parts breakdown on page 100. Locate the fuse box assembly and verify whether the blown circuit requires the 5A or 15A fuse. Match the OEM part numbers for the specific fuse, mounting screws, and washers before ordering.
Manual Section: Electric Parts (2) p. 100Steel tracks are constantly slipping and need the complete track link assembly and shoe hardware part numbers.
Check the track-link assembly diagram on page 134. Verify your machine uses the 230G steel crawler configuration. Document the required quantities and part numbers for the individual shoes, bushings, track pins, and master pins to order a complete undercarriage replacement.
Manual Section: Track-Link 230G (Steel Crawler) p. 134Bucket pivot points are excessively loose and cannot locate the correct replacement pin and shim kit numbers.
Examine the bucket parts diagram on page 198. Confirm you are looking at the 0.02 capacity, 250Mm Wide bucket setup. Identify the exact replacement part numbers for the mounting boss, shims, plates, and required bolts to secure the new bucket.
Manual Section: Bucket 0.02•I250Mm Wide) p. 198Frequently Asked Questions
What is the part number for the main frame of the EX12 excavator?
The part number for the main frame of the EX12 excavator is 5003304. p. 2
What is the part number for the engine fan belt?
The part number for the fan belt on the EX12 engine is 4294840. p. 6
What is the part number for the air cleaner element?
The part number for the air cleaner element is 4294845. p. 14
What is the part number for the radiator cap?
The part number for the radiator cap is 4296743. p. 8
What is the part number for the fuel filter element for the engine?
The part number for the fuel filter element is 4294842. p. 6
What format is this Hitachi EX12 manual in?
Instant PDF download. You get the full 270-page searchable Parts Catalog immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Can I print specific sections of this Hitachi EX12 Parts Catalog?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
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