Description

Michigan 125II Parts Catalog – Factory OEM Parts Manual

You know the drill. You’re trying to order a steering cylinder for a Michigan 125II and the aftermarket parts list gives you a generic number that doesn’t match anything on the machine. Two weeks later, you get a cylinder that’s half an inch too short. That’s wasted time and money you can’t afford. I’ve been wrenching heavy equipment for 28 years, and I’ll tell you straight: you need the factory Parts Catalog — not a scanned copy of some third-party guesswork. This is the real deal: 136 pages from Clark Equipment, printed in the U.S.A.

Look at the table of contents. It covers accelerator pedal and linkage for four engine variants — Cummins, G.M., Leyland, and Volvo. Air cleaner and muffler groups. Axle assemblies front and rear, including differential carriers and planet spider assemblies. Brake groups with separate lines for each engine. This Parts Catalog doesn’t leave anything out. Page 1 has a spot to record your machine serial number — that’s a detail you only see in OEM documentation.

Why Use a Factory Parts Catalog?

Aftermarket parts listings often group parts by generic descriptions. A brake line for a G.M. engine is different from a Cummins. The factory Parts Catalog breaks it down by engine because the routing and lengths aren’t the same. If you order the wrong line, you’re bending tubing by hand and hoping it doesn’t chafe. That’s a safety risk. OEM drawings show you exactly which clip goes where — check the Clip Diagram sections for G.M. (1 E2) and Cummins (1 E4). You won’t find that level of detail in a reprint.

7 Systems Covered in 136 Pages

I count seven major groups in this Michigan 125II Parts Catalog: engine and accessories, fuel system, hydraulic group, transmission, steering, valve group, and wiring. Each one has its own subsection with page references. For example, the Converter Group includes the converter assembly and pressure regulator valve assembly — two completely different parts, but they’re grouped logically so you can see the whole circuit. That’s how a real factory manual is laid out.

Accelerator Pedal and Linkage: Cummins, G.M., Leyland, Volvo

Four different accelerator pedal and linkage setups. The Parts Catalog has separate pages for each: 1 A5 for Cummins, 1 A6 for G.M., 1 A7 for Leyland and Volvo. If you need a throttle return spring for a Volvo-powered 125II, you look up the Volvo section. No cross-referencing to aftermarket lookup tables that give you a generic spring that’s either too weak or too stiff. This is why I only trust factory catalogs when ordering replacement parts.

Hydraulic Group: Identifying Reservoir and Pumps

Hydraulic system has its own section starting at 1 G1 — Hydraulic Oil Reservoir, then 1 G3 for Bucket and Boom, 1 G6 for Steering, and 1 G8 for Transmission and Torque Converter. The Pump Group is separate: 1 G12 for bucket and boom pump, 2 A5 for converter and steering pump, and 2 A6 for the hydraulic pump. If you’re replacing a pump, you need the exact part number from the factory diagram. This Parts Catalog gives you the exploded view with callouts. See our other Michigan manuals for service procedures to install these parts.

Transmission Group: Control Levers and Linkage

Transmission assembly starts at 2 B4, controls at 2 B11, control cover at 2 B8, and control levers and linkage at 2 B9. That’s four pages dedicated to the transmission alone. When you’re rebuilding the shift linkage on a 125II, you need the correct rod lengths and clevis pin sizes. The factory Parts Catalog lists them. Aftermarket catalogs often omit these because they assume the linkage is universal — it’s not. Trust me, I’ve seen the aftermath of a misadjusted linkage: a blown transmission from inadvertent engagement at high RPM.

Wheel and Tire Data – Don’t Guess

Page 2 C2 gives wheel and tire data. Tire size, rim width, offset. If you swap tires without checking offset, you can cause premature bearing wear or steering interference. That’s a safety issue. The Parts Catalog includes this because Clark knew the machine specs. Aftermarket sites might give you a tire size but ignore the rim details.

If you’re working on a Michigan 125II, you need the factory parts breakdown. It’s 136 pages of OEM part numbers, exploded diagrams, and group sections that follow the actual machine layout. Don’t waste time with aftermarket reprints that miss details.

Related manuals you might need:

• 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

For background on why factory documentation matters, see the Automotive Industry Overview and Automotive Industry Overview.

Does this manual include exploded diagrams?

Yes, every assembly has an exploded view with part numbers.

Can I use this to rebuild the transmission?

This parts catalog shows every component with part numbers, but it does not include assembly torque specs or disassembly steps. You need the service manual for that. However, if you already have the service manual, this parts catalog pairs with it perfectly — you can identify exactly which seal kit, bearing, or shim you need. Without the factory part numbers, you risk ordering the wrong internal parts and losing time. I’ve done transmission overhauls on these machines, and having the correct part number from this catalog saved me hours of cross-referencing.

If you need to keep your Michigan 125II running without guessing part numbers, access the factory manual today.