Description

Michigan 125 III A Cummins, 125 III A G.M. Parts Catalog – Factory OEM Parts Manual

If you’ve ever tried to order a replacement part for a Michigan 125 III A and ended up with the wrong piece because some third-party catalog had the wrong number, you know the headache. This 254-page Parts Catalog supplement is exactly what Clark Equipment intended for the field: a factory-correct breakdown of every part on the Michigan 125 III A Cummins, 125 III A G.M. Parts Catalog (serial 12AFC101-12AFC999, 13AFC101-13AFC999 for Cummins; 12AFG101-12AFG999 for G.M.). It’s a supplement to the base Parts Manual No. 2044, so you need both if you’re rebuilding the whole machine. But if your job hits the sections covered here—mainly the main hydraulic valve, buckets, cylinders, converter—this supplement is the only source you should trust.

What Does This 254-Page Supplement Cover?

The index lists every assembly with its page or a reference to another PMS supplement. For example, the Bucket and Boom Hydraulic System appears on page 25, and the Boom Cylinder Assembly on page 22. Battery Cables are on page 28, while the Engine Wiring Diagram spans pages 29-30. The Converter Charging Pump and Converter Pressure Regulating Valve are both on page 9. Control Cover Assembly is on page 7, and the Frames and Cradle Assembly starts on page 3. This is not a generic overview—every line item ties back to an actual Clark part number.

Engine, Transmission, and Brake System Parts – Where to Find Them

Torque values are printed in the diagrams.

The supplement indexes the Engine and Accessories to PMS 2390, the Transmission (case, clutch groups) to PM 2044, and the Brake Assembly (front, rear, parking) to PMS 2144. You aren’t left guessing: the cross-reference tells you exactly which manual supplement to pull. For a shop that works on multiple Michigan models, having the full set of PMS supplements is the only way to avoid mis-ordering.

Get the Right Torque Specs from OEM Data

Torque values for hydraulic components—like the Converter Pressure Regulating Valve on page 9—are printed in the factory specs. Aftermarket catalogs skip those numbers. If you’re torquing bolts on the boom cylinder or the transmission control cover, you need the OEM values. This supplement gives them to you in the diagrams. For context on why factory parts documentation matters in the heavy equipment industry, see the Automotive Industry Overview on Wikipedia.

Parts Catalog vs. Aftermarket: Why Original Matters

Third-party parts catalogs often reuse old illustrations, miss supersession updates, or leave out serial number breaks. This manual is a direct scan of the original Clark Equipment print—Part No. 2460, printed in U.S.A. It includes the exact part numbers for both the Cummins and G.M. variants. The note on page 2 says “When ordering repair parts, always furnish the distributor with the machine serial number.” That’s the mindset behind this manual: precision, not approximation.

3 Reasons to Trust This OEM Supplement

1. Serial-Range Specific – Covers only the 125 III A with the listed serial numbers, so you don’t get parts from a different year or variant. 2. Official Cross-References – Each index entry points you to the correct PMS supplement (e.g., PMS 2390, PMS 2144) rather than dumping everything in one file. 3. Factory Part Numbers – Every number in this catalog was validated by Clark Equipment. No aftermarket renumbering.

Related Manuals:

• Volvo BM Michigan 125C 1988 Parts Catalog – Factory OEM Parts Manual
• Michigan 851 Parts Catalog – 72-Page Factory Parts Manual
• Michigan 85III 1965 Parts Catalog – Factory OEM Parts Breakdown

Frequently Asked Questions

Does this manual cover the entire Michigan 125 III A machine?

No, it is a supplement. You also need the base Parts Manual No. 2044 and other PMS supplements.

I have a 125 III A with a Cummins engine. Will the G.M. part numbers be in here?

Yes, the manual includes separate sections for the Cummins and G.M. variants. The serial number break is given on page 1: 12AFC101-12AFC999 and 13AFC101-13AFC999 for Cummins, 12AFG101-12AFG999 for G.M. Each illustrated parts page lists the correct part number for the specific engine. For assemblies that are common across both, the manual notes it. If you are working on a machine outside those serial ranges, you need a different supplement. Always verify your machine serial against the list before ordering.

Are torque specs included for the hydraulic valve?

The supplement includes torque specifications on the relevant pages, such as page 9 for the converter pressure regulating valve and page 25 for hydraulic system components. If you need a full torque chart, refer to the service manual, but the parts catalog gives you the critical values for reassembly.

Can I use this manual for a 125C or 125A?

No. The 125 III A is a specific model series. The Volvo BM Michigan 125C 1988 Parts Catalog – Factory OEM Parts Manual covers the 125C, and the earlier 125A uses different supplements.

This factory supplement is the only way to get accurate part numbers for your Michigan 125 III A. If you’re tired of returns and cross-checking aftermarket lists, Access the Factory Manual and keep it on the bench next to your torque wrench.