Description

Michigan 125A Parts Catalog – 155 Pages of Factory Exploded Views

I don’t care if you’re rebuilding a bucket cylinder or chasing a brake line leak—if you order the wrong part you’re burning cash and time. The Michigan 125A Parts Catalog is a 155-page factory document, not some aftermarket reprint that blurs the part numbers. It covers the Series II tractor shovel with G.M. and Cummins powertrains. You get exploded diagrams, Clark part numbers, and the machine serial number ranges so you don’t order a piston seal meant for a different production run. This is the same book the dealer parts counter flips through—except you can keep it in your shop.

Axle Mounting and Drive Axle Assemblies

Front drive axle and rear drive steer axle groups are on pages 45 and 47. The manual shows every bushing, bearing, and shim. Axle mounting parts are on page 4. If you’ve ever had a front axle come loose because someone guessed on the fastener grade, you’ll appreciate having the exact Clark bolt part numbers. The axle tie rod (page 54) and planet spider assembly (page 52) are also broken down. No guesswork—just the factory listing.

Boom Cylinder and Bucket Cylinder – Part Numbers You Can Trust

The Cylinder assemblies for the boom (page 82) and bucket (page 83) are laid out with seal kits, gland nuts, and rod wipers. I’ve seen shops order a bucket cylinder rebuild kit that didn’t match the pin size because they used a generic cross-reference. This manual gives you the Clark part number for each component. The bucket and boom hydraulic system pages 79–80 also list the guide bar pipes and hose routing. If your boom drifts down, the bucket leveling master cylinder (page 81) and leveler valve (page 81) are there too.

Brake Systems: Front, Rear, Parking, and Controls

Brake assemblies for front and rear axles are on page 60. The parking brake assembly (page 64) and its controls (page 65) are separate. Brake wheel cylinder (page 61), brake power cluster (page 62), and brake controls (page 55) give you the full hydraulic and mechanical breakdown. Brake lines are split by engine—Cummins on page 57, G.M. on page 59. If you need the air pressure sender unit or air reservoir, those are on pages 57 and 59 as well. Why risk using a wheel cylinder from a different model? Get the exact piece Clark designed for the 125A.

Hydraulic Systems: Bucket and Boom, Steering, and Leveling

Bucket and boom hydraulic pump is on page 76. The steering system pump (page 40), steering cylinder (page 70), and drag link (page 71) are all in here. The steering pressure relief valve is on page 74, and the steering system oil filter on page 73. Bucket leveling hydraulic system (page 77) and master cylinder (page 81) are included. If you’re replacing a pump, you need the correct displacement and mounting flange—this catalog shows the exact pump assembly with every gear and seal.

Engine Controls and Accessories – Cummins and G.M. Variants

Accelerator pedal and linkage: Cummins on pages 13,15; G.M. on pages 13,14. Engine controls occupy pages 22–23. Exhaust pipes and mufflers are separate per engine. Radiator connections: Cummins page 20, G.M. page 21. Engine mounting parts pages 17 and 19. The manual also covers the engine bypass oil filter (page 16), fuel lines, and fuel tanks (page 27). Knowing the difference between a 3FG101 and a 4FC999 serial range prevents you from ordering the wrong air cleaner assembly (pages 57,59) or brake lines. The clip chart on pages 97 and 99 cross-references fasteners—saves digging through hardware bins.

All 155 pages are scanned from the original Clark Equipment Company manual, printed in the USA. No aftermarket “compatible” nonsense. You get the exact part numbers that went into Benton Harbor, Michigan. If you need a companion service manual, check the Related Manuals below.

• Michigan 125A Series II Tractor Shovel Parts Manual No. 402
• MICHIGAN 125A TRACTOR SHOVEL PARTS MANUAL
• MICHIGAN Model 125A Tractor Shovel Parts Manual No. 401

Want to understand how the heavy equipment industry standardizes documentation? Read the Automotive Industry Overview—then come back and access the manual that actually gets your machine back to work.

Frequently Asked Questions

Does this manual include torque specifications for the Michigan 125A?

No. This is a **parts catalog**, not a service manual. It lists part numbers and exploded views. You need the separate service manual for torque values, clearances, and assembly procedures.

Can I use this to rebuild the transmission?

It will show you the converter assembly (pages 37–38), converter charging pump (page 40), transmission oil dipstick (page 43), and the gear shift levers and linkage (page 35). If you need to replace a clutch plate or seal, the part number is here. Rebuild steps are not included—get the service manual for that.

How do I know if my machine is covered by this manual?

The front page lists machine serial ranges: 125A G.M. – 3FG101 thru 3FG999; 125A Cummins – 3FC101 thru 3FC140, 4FC101 thru 4FC999. If your serial falls outside those ranges, check the supplements at the back of the manual or look for the Series II designation on your nameplate.

Is this a digital access or a printed book?

This is a PDF format of the original factory manual. You can print pages, zoom in on diagrams, or view on a tablet. No reprint—it’s a direct scan of OEM document No. 1670.

Stop ordering wrong parts because some online cross-reference was wrong. Access the Factory Manual today and keep your Michigan 125A running with parts that fit.