Komatsu Book: Parts

"I see a kit number and a component number." Solution:

You need two key identifiers from your machine’s (usually located in the cab or on the frame):

Modern Komatsu parts books (electronic versions) often have a "Dealer Code" column. komatsu book parts

Next to the drawing, you will see a table with columns. Here is what the standard columns mean:

This is where most people get stuck. The S/N column usually contains codes like 1-500 , 501-Up , or N/A . "I see a kit number and a component number

❌ Using the wrong serial number range – leads to wrong fitment. ❌ Ignoring supersessions – older part numbers may be unavailable. ❌ Assuming all PC200 books are the same – PC200-6 vs. PC200-8 have different parts. ❌ Ordering a “part” without checking the diagram – some items are not sold separately (e.g., seal kits).

: On official portals like My Komatsu , you can click directly on the diagram to add parts to a digital shopping cart. Where to Find Parts Books The S/N column usually contains codes like 1-500

| Column Header | Meaning | | :--- | :--- | | | The number pointing to the part in the drawing. | | Part Number | The unique Komatsu ID (e.g., 20Y-54-11110 ). This is what you order. | | Description | The name of the part (e.g., "CYLINDER HEAD"). | | Qty | The quantity used in that specific assembly. | | S/No. (Serial No.) | Crucial Column. This indicates the range of serial numbers this part fits. | | Remarks | Notes on interchangeability or alternatives. |

| Digits | Meaning | |--------|---------| | 708 | Part family (e.g., hydraulic pump) | | 2H | Design variant or material code | | 00210 | Specific part identifier |

Komatsu part numbers follow a pattern: