Description

Clark-hurth 55B 1977 Parts Catalog – OEM Factory Specs

You need the right part number for that worn-out Clark-hurth 55B 1977 Parts Catalog brake valve or you’re going to order the wrong seal and lose a full day of machine time. I’ve seen guys guess from aftermarket catalogs and end up with a boom cylinder that doesn’t match the pin size. That’s a waste of money and a safety hazard if you don’t catch it before the machine goes back into service. This 102-page factory supplement gives you the exact OEM numbers for the 55B Michigan tractor shovel, originally printed in 1977. No reprints, no copy – this is the same document TCM issued under license from Clark Equipment Co.

Brake and Valve Components: Factory Part Numbers

Brake controls are listed on page B6, parking brake lever on page B8. If you’re rebuilding the air brake valve, the catalog breaks down the valve group with individual part callouts – no guessing which diaphragm or spring fits. The air brake valve controls and valve V7 pages show the exact assembly. I’ve dealt with shops that try to mix aftermarket internals into a Clark-hurth air valve and it never seals right. Stick to the OEM numbers from this Parts Catalog and your brake pedal will feel consistent every shift.

Electrical and Wiring: Battery Cables and Instrument Panel

Wiring harnesses and battery cables are covered in section E5. The ammeter and air pressure gauge are listed on page E3. If your electrical system is acting intermittent, you need the correct gauge wire and terminal part numbers. Aftermarket wiring diagrams often use generic colors that don’t match the factory harness. This catalog gives you the Clark-hurth electrical part numbers so you can trace faults without pulling the whole dash apart. The instrument panel layout is detailed – you can order the exact gauge, not a universal replacement that requires splicing.

Boom and Cylinder Assemblies: What the Catalog Covers

Boom cylinder assembly starts on page C7, bucket cylinder on C9, steering cylinder on C11. Each cylinder page shows seals, rods, pistons, and gland nuts with separate part numbers. The boom assembly itself runs from page B3 to B4, including bellcrank and pushrod. If you need to replace a bucket cylinder due to a bent rod, you can look up the exact replacement without disassembling the old one first. That’s the kind of time savings you get when you own the factory parts breakdown.

Why You Need the 1977 Parts Catalog for the 55B

Aftermarket parts databases often combine multiple model years into one listing. A 1977 55B might have a different steering cylinder than a 1979. This catalog is specific to the 55B with Cummins engine, serial 433B-101 and after. The PDF contains the exact pages from the original TCM / Clark-hurth printing. You get 102 pages of verified factory information – no third-party interpretation. If you buy a generic aftermarket book, you’re rolling the dice on part number accuracy. I’ve seen too many mismatched parts cause hydraulic leaks and brake failures. Don’t trust your machine to guesswork.

How to Use This Catalog on the Bench

Print the page you need and lay it next to the disassembled component. The catalog uses exploded views with numbered callouts matching the parts list. Cross-reference your old part number against the illustration to confirm you’re ordering the right item. If you’re working on the transmission, the clutch groups (low, first/second, reverse/third) are listed with their own part numbers. The converter assembly pages C13-C14 cover impeller and converter components. Keep this Parts Catalog within arm’s reach of your toolbox – it’s faster than scrolling a tablet with greasy fingers.

Frequently Asked Questions

Does this parts catalog include service procedures or torque specs?

No. This is a parts catalog, not a service manual. It lists part numbers and exploded views for ordering. For repair procedures, you need the separate 55B service manual.

Can I use this catalog for a Clark 55-IIIA model?

The supplement is designed to be used with the 55IIIA Parts Manual No. 2926-R1. It adds changes for the 55B. If you have a 55-IIIA, you still need the base manual and this supplement for full coverage. Check the serial number range on the first page – it covers 55B Cummins engine machines from serial 433B-101 forward.

Does the catalog show wiring diagrams or just part numbers for electrical components?

It lists part numbers for the battery cables, electrical wiring, ammeter, pressure gauges, and instrument panel components. It does not include full wiring schematics with wire colors and connector pinouts. For wiring diagrams, you need the corresponding electrical schematic manual. However, the parts breakdown does identify each wiring harness and gauge assembly individually, so you can order replacements accurately.

What major assemblies are covered in this 102-page catalog?

Brake controls and valves, boom and bucket cylinders, steering cylinder, transmission clutch groups and converter, engine controls and exhaust, radiator connections, decals and nameplates, and the electrical instrument panel. Over 20 distinct assembly groups are broken down into individual part numbers.

Look, I’ve been turning wrenches for 28 years and I’ve seen too many jobs go sideways because someone ordered the wrong part out of a generic book. The Clark-hurth engineers who designed this machine wrote these part numbers, and this 1977 Parts Catalog is the only way to see exactly what they intended. If you work on the 55B Michigan tractor shovel, you need this on your bench. Access the Factory Manual now and stop guessing.

Related manuals you may find useful:

• Clark Michigan 55B Tractor Shovel Parts Manual 3165″>Clark Michigan 55B Tractor Shovel Parts Manual 3165
• Clark Michigan 55-IIIA & 55B Parts Manual”>Clark Michigan 55-IIIA & 55B Parts Manual
• Clark-hurth L320 1991 Parts Catalog – 690 Pages OEM Specs”>Clark-hurth L320 1991 Parts Catalog – 690 Pages OEM Specs

External references: Automotive Industry Overview”>Automotive Industry Overview and Internal Combustion Engine”>Internal Combustion Engine.