Description

Chenggong Construction Machinery CG938H Parts Catalog

If you have ever ordered a replacement part for a CG938H wheel loader based on a cross-reference list that came up short, you know the headache. Bolt holes that don’t line up, seals that leak, hydraulic lines that hit the frame. That happens when you rely on aftermarket catalogs that guess at compatibility. The Chenggong Construction Machinery CG938H Parts Catalog is an OEM document – 166 pages of factory-sourced part numbers, exploded assembly drawings, and instructions written by the people who built the machine. No guesswork, no third-party substitutions. This is what the dealer uses.

Engine Assembly: Parts Identification from Page 5

The catalog opens with the engine assembly (发动机装置) starting on page 5. Every component is numbered and cross-referenced to a table listing the part code, name, and quantity per machine. Need a piston ring set? Find the exploded view, locate the number, then look it up in the table. The manual uses a consistent system: group numbers for assemblies like the torque converter transmission (page 16) and the transmission oil line and control (page 19). You can trace a leaking hose from the pump all the way to the valve body without flipping through aftermarket diagrams that skip sections.

Torque Converter Transmission and Oil Line Systems

Pages 16–18 cover the torque converter transmission (变矩器变速箱), followed by the transmission oil line and control system (变速油路及操纵系统) on pages 19–25 (approximate section). These chapters show the hydraulic circuits, valve bodies, and clutch packs as assembly groups. When you need to order a seal kit for the converter, the catalog gives you the factory group number and the individual part numbers of every O-ring and gasket. This is not a parts catalog that lumps everything into a “transmission kit” that may or may not fit.

Front and Rear Axles: Separate Sections for Each

The catalog continues with the front and rear axles (前桥、后桥). Each axle assembly is broken down – differential housing, planetary gears, brake components, and hub seals. If you are rebuilding a final drive, you get the exact part numbers for bearings and shims. The manual includes the Chinese national standards (GB) and mechanical industry standards (JB) for standard fasteners, so you know whether that bolt is a Grade 8.8 or 10.9 without measuring hardness. Automotive Industry Overview might describe global standards, but this catalog gives you the specific Chinese equivalents.

Understanding Chinese Standards (GB, JB) in the Catalog

The instruction page (page 2 of the catalog) explains the notation: GB refers to Chinese national standards, JB to the First Machine-Building Ministry standards. Parts marked with a triangle (△) are not shown in the figure – you have to order them by the part code directly. This is where many DIYers slip up: they see a missing illustration and assume the part doesn’t exist. It exists; it just didn’t fit in the drawing. The catalog tells you to note the “group” column when parts vary by volume or thickness. Do not ignore that column. I have seen a guy order the wrong brake piston because he skipped the group number – cost him an extra week of downtime.

Ordering Parts Correctly: Using the Catalog’s System

This catalog is built for ordering. The instruction page gives three pieces of information you must provide: machine model, serial number, date of production. Then the part code, name, and quantity. The catalog is bilingual – Chinese and English – so you can hand it to a parts supplier anywhere in North America and they will understand the tables. But here is the catch: the orientation is based on the machine’s forward direction. Left and right are referenced to the operator’s seat facing forward. If you flip a part diagram, you might order a left-hand door handle as right-hand. Chenggong Construction Machinery CG958H Parts Catalog – 231-Page OEM uses the same orientation system, so if you work on multiple models, the logic carries over.

Why This Catalog Belongs in Your Shop

Three things. One: every part number is verified by the manufacturer. Two: the exploded views show the assembly order – you can use them as a disassembly guide even without a service manual. Three: the catalog includes the quantities per machine, so you order exactly what you need. No buying a bag of 20 bolts when you need 6. For beginners who are nervous about tearing into a wheel loader, this catalog removes the fear of ordering the wrong part. You see the part, you find the number, you order it. No callbacks, no “this doesn’t fit” emails. Hydraulic systems in construction equipment require precision; this catalog delivers it.

Related Manuals for Other Chenggong Models

• CG935H ZL35H Wheel Loader Parts Catalogue
• Service Manual CG935G Wheel Loader

Frequently Asked Questions

Does this parts catalog include torque specifications for assembly?

No. This is a parts catalog, not a service manual. It lists part numbers and exploded views. For torque values, you need the separate service manual for the CG938H.

How do I use the catalog to find a part for the engine?

Turn to the engine assembly section starting on page 5. Locate the component in the exploded view, note the callout number, then find that number in the adjacent table. The table gives the part code (e.g., 10B-00123), the name in both Chinese and English, and the quantity per machine. Write down the part code and machine serial number before ordering. The catalog also lists group variations – if a part comes in different thicknesses, the group column tells you which one matches your machine. Pay attention to the notes marked with Δ (triangle) – those parts are not drawn but are still orderable. For example, a seal that is hidden inside a housing won’t be shown, but its code is listed in the table. If you cannot find a part, check the torque converter transmission section (page 16) or the axle sections later in the book. The index at the front (page 4 of the catalog) shows all major sections.

This catalog is the same document the factory sends to dealers. 166 pages, OEM part numbers, bilingual instructions. If you are rebuilding a CG938H wheel loader, you need this on your bench – not a generic parts list that leaves you guessing. Access the Factory Manual from AutoRepairManuals and get the correct part numbers before you pick up a wrench.