Description

Michigan 125A Parts Catalog

You’ve got a Michigan 125A Parts Catalog in your hands, and that’s the only thing that matters when you’re trying to track down the right part for a Series II tractor shovel. Aftermarket parts diagrams are a gamble — I’ve seen guys order a boom cylinder seal kit that didn’t fit because the aftermarket drawing had the wrong port orientation. This manual is 124 pages of factory-sourced, Clark Equipment-approved exploded views and part numbers. No ambiguity. Page 70 shows the Boom Cylinder Assembly with every nut, seal, and piston ring listed by Clark’s own part number. That’s the difference between a job that takes one hour and a job that takes three days because you’re waiting on the wrong part.

Brake Assembly Sections and What They Cover

The Brake system on a 125A is not something you want to guess at. The manual breaks it down into Front Brake Assembly (page 49), Rear Brake Assembly (page 49), Parking Brake Assembly (page 52), and Brake Power Cluster (page 51). Each section includes the exact part number for the brake wheel cylinder, the return springs, and the lining kit. If you’re rebuilding a brake drum, you need the factory diagram so you can see how the parking brake linkage connects to the front brake. That’s on page 52. Don’t trust a third-party diagram that might show a bolt pattern that’s close but not exact.

Hydraulic Cylinder and System Coverage

Every Cylinder on the machine is accounted for: Boom Cylinder Assembly (page 70), Bucket Cylinder Assembly (page 71), Steering Cylinder Assembly (page 58). The Bucket and Boom Hydraulic System is covered across pages 67-68, with the control valve on page 73. If you’re replacing a Cylinder seal, you need to know the right part number for the piston packing — not the generic one that fits three different brands. The factory manual lists it by Clark’s own number. That’s the only way to guarantee the seal matches the bore diameter and groove depth. Automotive Industry Overview won’t help you here; stick with the OEM book.

7 Systems Covered — Where to Find Them

This Parts Catalog doesn’t just list parts; it organizes them by system. You’ve got the drivetrain (Front Drive Axle Assembly page 36, Rear Drive Steer Axle page 38, Differential and Carrier page 40-42), the engine accessories (Engine and Accessories page 1, Air Cleaner Assembly page 12, Fuel Lines page 18), the electrical (Battery and Battery Box page 77, Ignition Switch page 76), and the hydraulic controls (Bucket and Boom Control Valve page 73, Hydraulic Reservoir page 63). Each section starts with a group number and a clear exploded view. If you’re ordering a propeller shaft, turn to page 44. You’ll see the U-joint, the slip yoke, and the flange bolts — all with part numbers. The aftermarket catalogs I’ve seen skip the clip chart (page 83) that shows every retaining ring and washer. This manual includes it.

Source Authenticity: Why OEM Beats Aftermarket

Clark Equipment printed this manual — it’s stamped “CLARK EQUIPMENT” and “LA BRUGEOISE ET NIVELLES S.A.” on the cover. That means every part number was verified against the original engineering drawings. Aftermarket parts catalogs often re-index the numbers or use generic descriptions that don’t match the serial number breaks. The manual tells you to record your machine serial number and engine model on the first page. That’s because the 125A Series II had production changes — some axle assemblies used different seals after a certain serial number. The factory manual accounts for that. The aftermarket won’t. If you’re serious about keeping this machine running, you need the OEM documentation. Automotive Industry Overview is background reading; this manual is the workbench tool.

Audience Fit: Who Needs This Manual

This is for owners, operators, and mechanics who work on the Michigan 125A. If you’re a home garage enthusiast who happens to own a tractor shovel, you need this because you can’t afford to order the wrong part twice. If you’re a shop that services heavy equipment, you need this because your techs will waste billable hours cross-referencing aftermarket books. The manual is 124 pages of straight part numbers and exploded views — no fluff, no ads, no guesswork. It’s a reference, not a novel. Keep it in the tool box, not on the shelf.

Frequently Asked Questions

Does this manual cover the Series II only, or also Series I?

This manual is specifically for the Model 125A Series II. The index pages list Series II parts. If you have a Series I, the part numbers will differ — especially for the brake assemblies and cylinder mountings.

Are torque specifications included in this parts catalog?

No. This is a parts catalog, not a service manual. It lists part numbers and exploded views. Torque specs are found in the service manual.

Can I use this manual to identify parts for a Michigan 175A or 85A?

No. Each model has its own parts catalog. The 125A shares some components with the 175A (like the Clark 5000 series transmission), but the axle and brake parts are unique. Order the correct manual for your model.

How do I order parts using this manual?

Find the part number from the diagram, then contact your Clark distributor with the machine serial number. The manual includes ordering instructions on page 3: provide quantity, part number, and description. Never order without the serial number — the manual warns you.

If you’re tired of guessing which seal fits or which brake shoe matches your front axle, this factory parts catalog puts the original Clark Engineering data on your bench. Stop burning time and money on parts that don’t fit. Access the Factory Manual now and get the correct part numbers the first time. Related manuals: Michigan 125A Series II Tractor Shovel Parts Manual No. 402, MICHIGAN 125A TRACTOR SHOVEL PARTS MANUAL, Michigan Model 125A Tractor Shovel Parts Manual No. 1670.