Part of the Hitachi Parts Manuals.
Need to track down the exact replacement components for your machine? This 351-page Hitachi EX45-2, EX40-2 parts catalog pdf (OEM #P1BE-1-2) breaks down every frame, hydraulic, and boom assembly for your hydraulic excavator. You get detailed exploded views covering the entire machine, from the primary piston pump device down to the undercarriage track-link assemblies. Open to any section to find factory parts lists showing every specific bolt, bushing, and O-ring required for a proper repair. Verify the exact hardware layout for the 012 way multi lever pipings, or identify the correct seal kit for the boom cylinder before calling the parts counter. Stop wasting days waiting on the wrong hardware to arrive. Download the file, jump to any section using the built-in bookmarks, and order the right numbers on the first try.
What's Inside This Hitachi EX45-2, EX40-2 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Air Cleaner, Fuel Pipings | |
| Cooling System | Radiator, Radiator Support, Radiator Net, Reserve Tank | |
| Engine | Muffler, Oil Cooler Pipings, Lubricate Pipings, Swing Bearing, Pump;Piston | |
| Electrical System | Gauge Panel, Wire Harness, Valve;Solenoid | |
| PTO | Extra Pipings _PTO_ | |
| Hydraulics & 3-Point Hitch | Pump Device, Pump Device Support, Boom Swing Cylinder, Blade Cylinder, Boom Cylinder, Arm Cylinder, Bucket Cylinder, Valve;Relief, Valve;Control, Valve;Pilot, Valve;Lock | |
| Body & Operator Station | Frame, Tank, Engine Control Cable, Console _Canopy_, Console _Cab_, Canopy, Floor Ass'Y, Floor, Seat, Seat Base, Cover, Track Frame, Cab Parts, Cab, Name-Plate _Canopy_, Name-Plate _Cab_ | |
| Decals & Accessories | Tools | |
| Other Components | Counterweight, Engine, Swing Device, Swing Post, Main Pipings, Engine Control, Console, Control Lever, Control Pedal, Lever Link Support, Lever Link, Pilot Pipings, Pilot Pipings _Jis-Type_, Pilot Pipings _H-Type_, Voice Monitor, Electric Parts |
Hitachi EX45-2, EX40-2 Common Problems This Manual Covers
Hitachi EX45-2 and EX40-2 worn bucket teeth are falling off and digging performance is noticeably weak.
Review the bucket parts breakdown on page 210. Identify the replacement point and side cutter part numbers specifically for the 600 mm wide bucket. Verify the bolt, washer, and nut hardware quantities match your specific serial number before ordering replacements for your fleet.
Manual Section: Bucket 0.14 _Jis94_ (600Mm Wide) p. 210Steel tracks are heavily worn and the machine is not moving smoothly over rough jobsite terrain.
Check the track-link assembly diagram on page 174. Locate the correct pin, bushing, and shoe part numbers for the 400G track-link configuration. Match the bolt and nut hardware exactly to ensure proper shoe retention when installing the new crawler components.
Manual Section: Track-Link 400G p. 174Arm cylinder is leaking hydraulic fluid down the rod and digging attachments will not hold pressure.
Inspect the arm cylinder parts breakdown on page 218. Identify the specific dust seal, bushing, and seal kit part numbers required for your unit. Cross-reference the components to ensure they fit machines equipped with the standard 450 mm wide bucket option.
Manual Section: Arm Cylinder p. 218Control levers feel spongy and pilot pressure fluid is leaking rapidly from the main valve block.
Read the multi lever parts list on page 234. Identify the correct valve, bracket, and bolt part numbers for the 014-way control system. Verify the name-plate details match your exact configuration before ordering replacement components to fix the pilot network.
Manual Section: 014 Way Multi Lever p. 234Frequently Asked Questions
What are the replacement specifications for the fan belt on the engine?
The engine fan belt has two part numbers depending on the serial number. For serial numbers up to 001374, use part number 4366702. For serial numbers 001375 and later, use part number 4391560. p. 6
What is the part number for the engine oil filter?
The engine oil filter part number is 4366703. p. 6
What is the part number for the fuel filter element?
The fuel filter element part number is 4366704. p. 20
What is the part number for the radiator cap?
The radiator cap part number is 4366707. p. 8
What is the part number for the air cleaner element?
The air cleaner element part number is 4294846. p. 16
Will this Hitachi EX45-2 Parts Catalog download right away?
A 351-page Parts Catalog in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Is this Hitachi EX45-2 Parts Catalog printable?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
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