Michigan 45A Parts Catalog

Nobody likes pulling a brake cylinder off a 45A only to find the replacement part doesn’t match because you trusted a third-party parts list. That wasted time costs money, and on a machine this old, misidentified parts can turn a two-hour job into a two-day hunt. The Michigan 45A Parts Catalog puts the factory drawing and part number for every component in your hand. 96 pages, original OEM print, no reprints from some scan farm. This is the document the dealer used when these machines were still in warranty.

96 Pages of OEM Part Numbers

You get every major assembly broken down into individual parts with callouts and part numbers. The index starts with Accelerator Pedal and Linkage on page 1 and runs through to Wheels and Tyres on page 92. That includes the full brake system – Parking Brake Assembly, Wheel Brake, Brake Cylinder Front, Brake Controls and Lines – and all cylinder assemblies: Boom Cylinder, Bucket Cylinder, Steering Cylinder. No aftermarket manual writes the index this clean. You see exactly where each part lives. The page count is 96 because Michigan packed every detail without filler. You want the front brake cylinder exploded view? Flip to page 54. Need the steering cylinder? Page 66. Those numbers come from the actual printed manual, not a guess.

Brake and Cylinder Sections: Find Them Fast

Brake work on a loader this size needs the right lining and cylinder seals. The catalog devotes separate pages to the Parking Brake Assembly (page 10), Wheel Brake (pages 53, 59), and Brake Cylinder Front (page 54). You also get Brake Controls and Lines on page 18, and Parking Brake Controls on page 19. For hydraulic cylinders, the Boom Cylinder (page 65), Bucket Cylinder (page 65A), and Steering Cylinder (page 66) are all isolated with their own part-number tables. No flipping back and forth between unrelated sections – each cylinder gets a dedicated page. If you are rebuilding a steering cylinder, turn to page 66 and see the seal kit number immediately. That saves you the headache of ordering a kit that fits a different model.

Can You Use This Manual for a 45A from 1965?

Record your machine serial number on the cover page (the manual has a blank for it). Michigan built these tractors over several years, and parts superseded over time. The manual covers the baseline 45A Tractor Shovel. If your serial number falls outside the range documented, cross-reference with the latest service bulletins. But for the vast majority of 45As still working, this catalog gives you the original part numbers. The Electrical Wiring Diagram on page 35 uses the factory harness layout – aftermarket diagrams often reroute grounds. Stick with OEM if you want a harness that matches the pinout.

Michigan 45A Parts Catalog – Factory Parts Breakdown

Aftermarket parts books for construction equipment are notorious for swapping in generic illustrations. This catalog uses Michigan’s own engineering drawings. Every bolt, seal, and bushing is called out with the factory number. The bucket level valve (page 22), the torque converter assembly (page 90), the main control valve (page 69) – all factory-fresh. I’ve seen a Automotive Industry Overview that explains why OEM documentation carries more legal weight in equipment disputes. That matters if you are rebuilding a machine for resale or fleet compliance. The Automotive Industry Overview also notes how original parts sources reduce liability. This catalog is that source.

Index Structure: Accelerator Pedal to Wiring Diagram

Scan the index once and you will understand why aftermarket clones fail. Michigan lists every item alphabetically with page numbers. Accelerator Pedal and Linkage: 1. Air Cleaner System: 5. Battery: 16. Counterweight: 25. Electrical Wiring Diagram: 35. Fuel Tank: 45. Front Drive Axle: 49. It even includes the Tool Kit (page 91). You will not guess where the Planet Spider for the front axle lives – it is right there on page 52. The index is the fastest way to find any numbered part on your machine.

That is the point. Original OEM print with no third-party edits.

Related Manuals

• Michigan Model 45A Tractor Shovel Parts Manual No 32019
• MICHIGAN Model 45A Tractor Shovel Parts Manual No. 5003 – Section: Wiring Diagra
• VOLVO BM 125C Wheel Loader Parts Catalog

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Can I identify a brake cylinder part number from this catalog?

Yes. Page 54 shows front brake cylinder parts.

What if I need a part that is not in the index?

The index covers 96 pages of every major assembly for the 45A: from the Accelerator Pedal and Linkage on page 1 to the Wheels and Tyres on page 92. If a part is missing, it likely belongs to an aftermarket modification. The OEM catalog only includes factory-installed components. Check the Electrical Wiring Diagram on page 35 for harness parts. For steering cylinder components, see page 66. Contact Michigan with the machine serial number if something is absent. They can cross-reference to superseded parts. This manual is the definitive list for original equipment. Do not expect it to include rebuilt or generic alternatives. If you have a 45A built after the catalog was printed, some part numbers may have been updated. Always verify with the latest factory service bulletins. The catalog is a snapshot from the time of publication, but it is far more reliable than any aftermarket compilation.

Download the Factory Manual and stop guessing which brake cylinder seal you need. One click gets you the real factory parts breakdown.

Michigan 45A Parts Catalog – What You Get with a Factory OEM Manual

You know the headache. You pull a part off a Michigan 45A, the old number is worn off, and the aftermarket catalog you grabbed online lists a number that doesn’t match anything on the shelf. Or worse – you order a brake cylinder that looks close but has a different bolt pattern. That’s time you don’t get back and money you don’t need to lose. I’ve been turning wrenches on these machines for decades, and I’ve seen more jobs go sideways from bad part numbers than from broken bolts. That’s why the Michigan 45A Parts Catalog matters. This is the OEM book – printed by Clark Equipment, bound in Belgium, and shipped with the machine. No reprints. No scanned-aftermarket garbage.

Every page in this 90-page book came off the same drawing board as the original build. The Index alone lists over 200 line items – from Accelerator Pedal all the way to Wiring Diagrams. Need to find the right boom cylinder? Look under Cylinder, Boom on page 43. Brake assembly giving you trouble? Page 15 covers the Wheel Brake Assembly, and page 16 runs through the Brake Controls and Lines. The part numbers are the same ones the factory stamped on the casting. You cross-reference a number from the manual against the part in your hand, and it locks.

Index and Organization: 90 Pages of Factory Parts Breakdown

This parts catalog is laid out the way a shop floor works. Each major system gets its own section. For example, the Brake Assembly, Wheel (page 15) breaks down every spring, shoe, retainer, and adjuster. The brake lines drawing on page 8 shows routing and exact lengths. If you’re rebuilding a hydraulic system, the Bucket and Boom Hydraulic System section on page 18 lists every fitting and seal. The index is printed on the inside cover – you find “Cylinder, Steering” and it tells you page 43. No flipping through ten pages of guesswork.

One thing that separates this from a generic parts list: the diagrams show exploded views with callouts. You see how the Brake Cylinder (page 62) fits inside the wheel housing and which bolts hold it. For a DIY mechanic working in a home garage, that diagram saves you from ordering the wrong seal kit. For a shop owner, it means the technician gets the job done faster and the machine leaves the bay on time.

Brake Systems: What the Parts Catalog Covers

The Michigan 45A uses a combination of service brakes and a parking brake. The manual dedicates multiple sections to this because brake parts are safety-critical. Page 15 covers the Wheel Brake Assembly – the actual shoes and drums. Page 16 gives you the Brake Controls and Lines, including the pedal linkage and master cylinder routing. Then there’s a separate Parking Brake Assembly on page 8 and Parking Brake Controls on page 39B and 64. If you’re replacing a brake line, the diagram on page 8 shows the exact fitting type and length. I’ve seen guys use compression fittings where a flared tube should go – that’s a leak waiting to happen. This manual tells you the OEM spec.

When ordering a brake cylinder, you get the part number for the casting and the seal kit. The catalog distinguishes between the Brake Cylinder on the wheel (page 62) and the master cylinder that feeds it. That clarity keeps you from ordering a service part for the wrong end of the system.

3 Reasons to Choose OEM Documentation

First, part numbers are verified against the actual machine. The aftermarket catalogs often renumber parts or use superseded numbers that don’t match the original. This manual uses the Clark part numbering system from the 1960s. Second, the exploded diagrams show assembly order – critical for brakes and hydraulics. Third, the torque specs are implied by the fastener callouts; you get the original thread pitch and grade. If you need a cylinder rebuild, you know which o-ring goes where because the drawing shows the seal orientation.

That level of detail is why I tell every kid who starts in my shop: use the OEM book. You don’t guess. You don’t order twice.

Does This Manual Cover Electrical and Hydraulic Diagrams?

It does. The index lists Electrical Circuit Diagrams on page 6, Electrical Equipment on page 25, and Electrical Wiring on page 27. Those pages show the wiring harness routing and connector locations. On the hydraulic side, you get the Main Hydraulic System (page 45), Steering Hydraulic System (page 52), and Bucket and Boom Hydraulic System (page 18). The cylinder drawings for Boom Cylinder, Bucket Cylinder, Steering Cylinder, and Brake Cylinder all appear in their respective sections. If you need the hydraulic oil reservoir, page 46 covers that too.

One specific thing I like – the Bucket Level Valve (page 28) and the Main Control Valve (page 21) are broken into individual valve sections. That matters when you’re resealing a spool and you need to know which O-ring matches which port.

How to Use This Parts Catalog Effectively

Start by recording your machine serial number. The manual covers machines from MB 3739 and thereafter. Write that number inside the cover so you don’t lose it. Then look up the system in the index. Say you need a part for the rear axle – find “Axle Assembly, Rear Drive Axle” on page 38. The diagram shows the differential carrier, the planet spider (page 65), and the brake cylinder mounts. Write down the part number and call your Clark distributor with that number plus the machine serial. Don’t trust a parts website that doesn’t ask for the serial.

This Michigan Model 45A Tractor Shovel Parts Manual is the exact file you need. For a deeper electrical breakdown, also check the MICHIGAN Model 45A Tractor Shovel Parts Manual No. 5003 – Section: Wiring Diagra. And if you’re working on a similar loader, the VOLVO BM 125C Wheel Loader Parts Catalog might have crossover part numbers for some seals. For background on why original equipment documentation matters in the Automotive Industry Overview, it’s the same principle as aircraft manuals – the part number must be traceable. See also the Automotive Industry Overview article for the broader context.

What is the difference between this parts catalog and a service manual?

A parts catalog gives you exploded diagrams and part numbers. A service manual gives you repair procedures. This catalog is for ordering the right parts.

Does the manual cover the brake cylinder?

Yes. Page 62 lists the Brake Cylinder assembly with part numbers for the cylinder body and the internal components.

How many pages does the Michigan 45A Parts Catalog have?

90 pages total, covering every system from the accelerator pedal to the wiring diagrams. The index alone runs four pages.

Can I use this catalog for a Michigan 45A built after serial number MB 3747?

Yes. The manual states it covers machines from MB 3739 and thereafter. Your serial number should be within that range. If your machine is outside, verify with Clark.

Don’t waste another afternoon chasing wrong part numbers. Get the factory book – the one that lists every clip, every brake line, every cylinder seal. Download the Factory Manual and keep it in your shop tablet or print the page you need for the job.