Description

Ihimer 55J Parts Catalog

If you are working on an Ihimer 55J mini excavator and have had to guess which seal kit fits the boom cylinder because the aftermarket diagram showed the wrong port orientation, you know why I will not touch a third-party parts list. That pain of ordering the wrong part and staring at a machine down for two days while the dealer cross-references serial numbers is why the Ihimer 55J Parts Catalog exists. This is not a reprint of some copy-paste PDF. It is the factory 274 pages of exploded diagrams, part numbers, and configuration variations that Ihimer published for the 55J. If you own one of these machines, you need this document on your bench or tablet before you order a single bolt.

LOWER MACHINE Assembly Breakdowns

The catalog splits the undercarriage into 17 sheets — from LOWER MACHINE ASSEMBLY (sheets 1-1 through 1-3) to the CRAWLER SHOE ADJ. DEVICE and FRONT IDLER ASSEMBLY. You will find the exact part numbers for the crawler shoes, including a separate group for Hutter-type shoes. The LOWER ROLLER ASSEMBLY and UPPER ROLLER ASSEMBLY are each shown in two views — left and right side identification is clear. Page layout follows the factory numbering system: each sheet corresponds to a specific subassembly. If you need the lower traction piping assembly, sheets 1-16 and 1-17 have the tube routing and all o-ring sizes.

HYDRAURIC PIPING Configurations – More Than One Way to Plumb It

The HYDRAURIC PIPING section runs 30 sheets (4-1 through 4-30). This is where most aftermarket catalogs fall apart — they show a generic diagram and expect you to figure out whether your machine has short levers, CE compliance, or A·B·G control changes. Not here. Sheet 4-10 through 4-23 cover the standard control piping, then separate sheets for the short lever variant (4-18 to 4-20), the CE version (4-21 to 4-23), the A·D & A·B·G change (4-14 to 4-17), and the A·F change (4-24 to 4-27). Traction shift piping is 4-28 to 4-30. Each sheet lists every fitting, hose, and clamp with the Ihimer part number. If you are rebuilding a 55J that has been pieced together from two machines, this section will save you from buying the wrong hydraulic hose three times.

HYDRAURIC INSTRUMENT Chapter – Motors, Cylinders, Valves

Twenty-six sheets cover the hydraulic components: traction motor (5-1 to 5-4), swing motor (5-5 to 5-7), rotary joint (5-8, 5-9), control valve (5-10 to 5-15), remote control valve with A·B change and short lever variants, solenoid valve, hydraulic oil tank, oil pump (5-28 to 5-31), and every cylinder — boom, arm, bucket, boom swing, blade. Each cylinder assembly shows the rod seal, piston seal, wiper, and o-ring part numbers. The MULTIPLE VALVE ASSEMBLY sheets (5-44 to 5-51) include three changeover configurations: A~D, A·B·G, and A·F. If you need the exact cartridge valve for a specific spool, the diagram tells you. The traction shift valve is sheet 5-50 and 5-51.

Who Needs a Parts Catalog Instead of a Service Manual?

If you are a DIY owner who needs to order a replacement hydraulic hose or a seal kit for the Ihimer 55J, the service manual will not give you part numbers. The service manual tells you how to take it apart and the torque specs. The Parts Catalog gives you the OEM part number so you order the right piece the first time. Professional mechanics who bill flat-rate know that guessing a part number costs money. This catalog covers the lower machine, turntable, swing drive, all hydraulic piping, all hydraulic instruments, operating controls (traction lever, control lever, blade/boom swing control, engine control), and the power unit (engine & accessories, air cleaner & muffler, oil pump drive, fuel tank).

Source Authenticity – OEM vs Aftermarket Parts Lists

Aftermarket parts catalogs for mini excavators often lump multiple model years into one drawing. They might show the 55J with a different swing motor than what your serial number 08003501~ machine actually has. This copy is the actual Ihimer publication — the same one dealers use. The index (page 3 and 4) shows the original Japanese and English descriptions side by side. The file is a direct scan of the factory document, not a retyped list where part numbers get transposed. If you have ever ordered a “fits all models” hydraulic filter and found it threads on but leaks, you understand why you pay for factory data.

FAQ – Ihimer 55J Parts Catalog

Can I use this catalog to order parts for a 55J with a different serial number range?

This catalog covers serial number 08003501 and above. If your machine is below that range, variations may exist, especially in the hydraulic piping and control valve configurations. Check the specific sheet numbers that match your setup.

Does this catalog include part numbers for the engine?

Yes. The POWER UNIT section (sheets 7-1 to 7-4) covers the engine and accessories, air cleaner, muffler, oil pump drive, and fuel tank. Engine internal part numbers are not listed — that requires the engine manufacturer’s parts catalog.

Are the torque specs included?

No. A parts catalog shows exploded views and part numbers only. For torque values, you need the service manual. This catalog is for ordering correct replacement components.

How many pages?

274 pages. Sheets are numbered with a dash (e.g., 1-1 through 7-4). Each sheet corresponds to a unique assembly or subassembly.

You have seen what happens when a shop orders three different drive motors because the aftermarket catalog had the wrong spline count. Do not waste your time on guesswork. Ihimer 80 Parts Catalog – OEM Factory Specs for Mini Excavator for larger machines, but for the 55J, this is the document. Pair it with the Ihimer 80VX 80NX3 Parts Catalog – Factory OEM Parts List if you have a mixed fleet, or the Ihimer 14NXT Parts Catalog – Factory OEM Specs for smaller jobs. External sources like Automotive Industry Overview cover broader topics, but for this specific excavator, you want the factory data. Automotive Industry Overview shows the big picture; the 55J Parts Catalog shows the part numbers. Access the Factory Manual now and keep it on your tablet in the cab.