Description

O&K RH12.6 2004 Parts Catalog

Let me tell you something straight: if you are ordering parts for an O&K RH12.6 without the factory parts catalog, you are gambling with your budget and your downtime. I’ve seen guys order a hydraulic pump seal based on a worn-out part number stamped on the housing – only to find out it was superseded three versions ago. That costs you time and money. The O&K RH12.6 2004 Parts Catalog puts the official part numbers, exploded views, and ordering rules right in front of you. This is not a reprint or a third-party compilation. It’s the 1st Edition from O&K, dated 03-04, catalog number 2987129.00. 902 pages of factory data across six languages. If you want the right part the first time, you start here.

O&K RH12.6 2004 Parts Catalog: The Core Sections

If you look at the table of contents, you see that this catalog is organized for real-world use. It starts with instructions for ordering spare parts (page 3) and ordering rules (page 4). The notes for consulting section covers how to read the diagrams and numbers. Every language version – English, French, German, Italian, Spanish, Dutch, Portuguese, Danish – follows the same structure. You get abbreviations on page 22, a conversion chart on page 23, the identification and version list on pages 25-27, maintenance parts on pages 29-31, and a number index on page 33. That means whatever language you work in, you can hand this to a tech in any shop and they can find the part. For other O&K models, check out the O&K L45, 4500Z 1990 Parts Catalog – Parts Manual TB126 and the O&K L3000 Parts Catalog – Factory OEM Manual (236 Pages) for the same level of accuracy.

3 Key Sections for Parts Ordering

Any mechanic who has chased a part number through a generic catalog knows the pain. This manual gives you three critical tools. First, the identification and version list – you match your machine’s serial and build date to the correct version. O&K made running changes that affect which parts fit. Second, the maintenance parts section groups the consumables you order most often: filters, seals, belts. Third, the number index lets you start from a known part number and find its location in the book. Use these three together and you stop ordering the wrong part. If you work on wheel loaders too, the O&K L2500 Parts Catalog – Factory Specs for Part Ordering uses the same system.

Conversion Chart and Abbreviations: Why They Matter

Do not skip the conversion chart on page 23. O&K hardware uses a mix of inch and metric fasteners – the chart gives you decimal-inch to millimeter conversions so you can order the correct bolt or fitting. The abbreviations list on page 22 decodes every symbol and acronym used in the diagrams. The chart follows standard industrial practices as outlined in the Automotive Industry Overview. Without these two pages, you are guessing thread pitches and filter micron ratings. I have seen a guy order a hydraulic filter based on thread size alone, only to find the bypass valve didn’t match because he read the abbreviation wrong. That does not happen when you use the factory page.

Identifying the Right Version for Your Machine

O&K built the RH12.6 in several configurations – different engines, undercarriage widths, and attachment options. The identification and version list (pages 25-27) tells you exactly which variant your machine is based on its serial number. You have to look this up before you open the parts diagrams. If you order a swing motor seal for version A when your machine is version C, the seal will leak. The catalog gives you the serial number ranges for each version so you know you are looking at the right diagram. That is the difference between a one-time order and a return.

Understand the Ordering Rules Before You Buy

Page 4 lays out the ordering rules. O&K requires you to provide the machine model, serial number, version code, and the part number from the catalog. If you call a dealer and give them only a description, they will ask you to call back after you get the number. The rules also explain how to handle superseded parts – old numbers that have been replaced by new ones. The catalog does not always mark supersessions in the diagram, but the order rules tell you to check with the dealer using the catalog number. That saves you from ordering a part that no longer exists. Respect the rules and you get the part in one shipment.

FAQ

Can I use this catalog to order parts from any O&K dealer?

Yes. The catalog is the official O&K parts catalog used by dealers worldwide.

How do I find the part number for a specific component?

Start with the identification and version list on pages 25-27 to confirm your machine’s configuration. Then go to the appropriate section (e.g., maintenance parts starting page 29) and locate the exploded diagram for your component. The number index on page 33 lets you cross-reference any part number you already have. Always double-check the version list because O&K made running changes. If you skip this step, you risk ordering a part that doesn’t fit. The catalog includes ordering rules on page 4 that explain how to provide the correct information to your dealer.

If you are tired of guessing part numbers and paying return shipping on wrong parts, this is the solution. Stop wasting time with aftermarket lists that miss superseded numbers. Access the Factory Manual and put the OEM data on your screen or on paper. For more on heavy equipment documentation, see the Automotive Industry Overview.