Part of the Hitachi Parts Manuals.
Every part on your EX58MU has a number, and this Hitachi EX58MU parts catalog PDF (OEM #P1BP-1-2, 290 pages) shows you exactly where to find it. Exploded views pair with numbered parts lists across every system: engine, radiator, fuel tank, pump device, swing post, pilot piping, track frame, cab, and boom. You get full component breakdowns for the piston pump, travel motor, control valve, and every cylinder (boom, arm, bucket, swing, blade), down to individual seals, O-rings, and bushings. Running a different bucket? All five sizes are here, from the 455mm 0.11 cubic meter to the 800mm 0.26, each with adapters, side cutters, and mounting hardware itemized. No more reading part numbers off a greasy dealer microfiche. Bookmarked PDF with a live text layer; type the part name, jump to the exploded view, and order right the first time.
What's Inside This Hitachi EX58MU Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Air Cleaner, Fuel Piping, Fuel Tank | |
| Cooling System | Radiator, Radiator Support, Reserve Tank | |
| Engine | Muffler, Oil Cooler Piping, Engine Control Cable, Swing Bearing, Pump;Piston | |
| Electrical System | Gauge Panel, Wire Harness, Valve;Solenoid | |
| Hydraulics & 3-Point Hitch | Pump Device, Blade Cylinder, Boom Cylinder, Arm Cylinder, Bucket Cylinder, 01..Valve;Relief, Valve;Control, Valve;Pilot | |
| Loader, Backhoe & Attachments | Swing Device, Swing Device Support, Swing Post, Auto Boom Stop System, Boom, Bucket 0.11 _Jis94_, Bucket 0.17 _Jis94_, Bucket 0.22 _Jis94_, Bucket 0.24 _Jis94_, Bucket 0.26 _Jis94_, Cyl.;Bucket | |
| Body & Operator Station | Frame, Oil Tank, Control Lever _Canopy_, Control Lever _Cab_, Canopy, Floor _Canopy_, Floor _Cab_, Floor Mat, Seat _Canopy_, Seat _Cab_, Seat Stand _Canopy_, Seat Stand _Cab_, Cover, Track Frame, Cab Support, Cab Ass'Y | |
| Decals & Accessories | Tools | |
| Other Components | Counterweight, Main Piping, Control Box, Console, Control Lever, Control Pedal, Lever Link, Pilot Piping _Jis-Type_, Pilot Piping _H-Type_, Pilot Piping, Electric Parts, Bolt Kit, Travel Device, Front Idler, Adjuster, Upper Roller |
Hitachi EX58MU Common Problems This Manual Covers
Hitachi EX58MU main pump rotating group part numbers, delivery pressure fell below 220 kgf/cm²
Measure cylinder block bore to plunger clearance before ordering; anything past 0.050 mm means the full rotating group, not single plungers. Check the Pump;Piston exploded view on pages 250 and 251 for the cylinder block, piston, shoe, holder, and valve plate numbers, then match them against your serial number range.
Manual Section: Pump;Piston p. 250Boom and arm cylinders drift more than 10 mm after warm-up, need seal kit numbers
Verify the drift first: more than 10 mm of rod movement in 5 minutes points to piston packing, not the control valve. Pull packing, wiper, O-ring, and bushing numbers from the boom cylinder list on page 201, the arm cylinder on page 203, and the bucket cylinder on page 205.
Manual Section: Boom Cylinder p. 201Track adjuster recoil spring collapsed, rubber crawler running loose and jumping the front idler
Check the Adjuster (Rubber Crawler) exploded view on page 154 for the cylinder assembly, spring, piston rod, and wear ring. Order the recoil spring assembly as part #9278751 or #9133379 depending on your serial number range. Steel crawler machines use the separate list on page 156; grab front idler seal group parts from page 152 while the frame is stripped.
Manual Section: Adjuster (Rubber Crawler) p. 154Swing motor relief valve cracking below 170 kgf/cm², need cartridge and seal kit numbers
Test cracking pressure first; below 170 kgf/cm² the cartridge is worn or holding debris. Find the relief valve, poppet, spring, and O-ring on the motor cover assembly list on page 253. Individual relief valve internals, including the body, poppet, seat, and back-up ring, are broken out on page 264 with the seal kit.
Manual Section: 01..Motor;Oil (1_2) p. 253Bucket side cutter and tooth adapter numbers differ between bucket sizes, cannot match mine
Measure your bucket's outside width at the side cutters before ordering anything. The 455 mm bucket is listed on page 187, 605 mm on page 189, 705 mm on page 191, 750 mm on page 193, and 800 mm on page 195. Each list carries its own adapter, side cutter, bolt, and nut numbers; they do not interchange.
Manual Section: Bucket 0.17 _Jis94_ (605Mm Wide) p. 189Frequently Asked Questions
What are the replacement specifications for the track adjuster recoil spring assembly?
The track adjuster assembly for the rubber crawler is part number 9133376, and for the steel crawler, it is part number 9133379. These assemblies include the cylinder (part number 4323070) and the rod (part number 3058196). p. 154
What are the replacement specifications for cylinder piston seals?
The seal kit for the boom cylinder is part number 4376959, for the arm cylinder is 4376962, and for the bucket cylinder is 4376965. These kits contain the necessary seals and rings for maintenance. p. 282
What is the part number for the main engine fan belt?
The main engine fan belt is part number 4373431. This part is listed for the engine assembly. p. 6
What is the part number for the engine oil filter?
The engine oil filter is part number 4373419. p. 6
What is the part number for the radiator cap?
The radiator cap is part number 4376804. p. 8
What format is this Hitachi EX58MU manual in?
Immediate download of the complete 290-page searchable Parts Catalog. Access it on any device, from a laptop at your desk to a phone in the field.
Are there any print restrictions on this Hitachi EX58MU manual?
Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
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