Description

Clark Equipment 275 III Parts Catalog

Spent half a Saturday on a 275 III because someone ordered the wrong brake chamber diaphragm? I’ve seen it. A guy pulls a part off the shelf, it doesn’t match, and then he’s chasing numbers for two hours. That’s wasted billable time you don’t get back. This Clark Equipment 275 III Parts Catalog is the factory-issued parts manual – 180 pages of exploded diagrams, part numbers, and serial number ranges that tell you exactly what fits. Not a reprint. Not a third-party compilation. Clark Equipment Company printed this for their dealers. If you’re working on a Michigan 275 III, this is what you use to order parts that actually bolt on.

Look at the table of contents. It covers everything from the Engine accessories on page 1 to the Transmission case on page 22 and the Brake assemblies on page 53. You want the air brake valve? Page 58. The slack adjuster? Pages 45 and 49. Every section is laid out the same way – a clear heading, an exploded view with callouts, and a parts list with Clark part numbers. No guessing whether that accumulator is the same as the one from a 275. It’s not. This catalog gives you the exact part.

Brake System Components – Air Brake Valve and Slack Adjusters

Brakes on a 40,000-pound tractor shovel aren’t optional. This catalog covers the air brake pedal assembly, the air brake valve (page 58), the air chambers (pages 45,49), and the slack adjusters. I’ve seen aftermarket parts catalogs list a generic diaphragm for the air chamber that doesn’t seal right. The factory catalog shows the correct diaphragm, the return spring, and the cover gasket. You get the part number, you order it, you install it. No surprises.

Transmission and Torque Converter – Internal Parts and Filters

The transmission case on page 22 is just the start. You need the clutch groups for first/second and input/reverse/third/fourth? They’re on pages 30 and 31. The torque converter air breather and check valve? Page 35. The converter charging pump? Page 38. And the transmission oil filler cap, breather, and filter cartridge kit are all listed with part numbers. When you’re rebuilding that transmission, you don’t want to find out you ordered the wrong clutch piston. This catalog keeps you from making that mistake.

Engine Accessories and Air Cleaner – Page 1 Details

Engine accessories start on page 1. That’s the alternator, starter, fuel lines – but more importantly, the air cleaner assembly and its connections (pages 12-13). The air cleaner element is a specific Clark part. Aftermarket elements can collapse under the airflow demands of a GM 6-71. The catalog gives you the exact element number. Also included: the accelerator pedal and linkage (page 15), the fuel tank cap (page 16), and the engine shut-off cable. Everything you need to keep that engine breathing and running.

Bucket, Boom, and Hydraulic System – Cylinders and Pump

The bucket assembly data, cutting edges, teeth data, and boom bellcranks are all on page 5. The bucket cylinder assembly (page 78) and boom cylinder assembly (page 79) are shown with their seal kits. The hydraulic pump (page 76) and the overall bucket and boom hydraulic system (page 75) are laid out. If you’re swapping a boom cylinder, you can see the port sizes and mounting brackets before you order. That saves having to pull the old one and measure – time you don’t have when the machine is down.

Why You Need an OEM Parts Catalog – Not Aftermarket

Aftermarket parts catalogs for the 275 III are hit or miss. They often miss the serial number breaks – some parts changed at 6JG501, and the aftermarket book lumps them together. This OEM catalog from Clark Equipment specifies exactly which serial numbers each part fits (6JG101 thru 6JG999 for the GM version). That matters when you’re ordering a Valve for the hydraulic system or a torque converter seal. I’ve seen $800 mistakes from using the wrong source. Fork over the extra twenty bucks for the real thing. Related manuals you might need: MICHIGAN 275 III Tractor Shovel Parts Manual, Clark Equipment 75B 1989 Parts Catalog – OEM Factory Manual, Clark Equipment 310, 310III Parts Catalog – OEM Factory Manual. And if you want background on why OEM documentation is standard in heavy equipment, check Automotive Industry Overview and Automotive Industry Overview.

3 Tools You Should Have Open Alongside This Catalog

First, a torque wrench. While this parts catalog doesn’t list torque specs (that’s in the service manual), you’ll need to know the correct fastener grade. Second, a digital caliper – some older parts may have been superseded, and the catalog’s dimensions help you confirm. Third, the machine’s serial number plate. Without that, you’re guessing. Write it down before you flip a page.

FAQ – Common Questions About the Clark 275 III Parts Catalog

Does this catalog include torque specifications for assembly?

No. This is a parts catalog, not a service manual. It lists part numbers and exploded views. Torque values are in the separate factory service manual for the 275 III. I’d recommend having both open when you rebuild an axle.

Will this cover my 275 III with a Cummins engine?

No. This catalog is for the GM 6-71 powered version (6JG101-6JG999). For Cummins, you need the corresponding parts catalog. The cover page says so.

How do I use the page numbers in this PDF?

Print the index page and use the bookmark tree in the PDF. Each section is bookmarked. Jump to page 58 for the brake valve, page 35 for the torque converter breather. Simple.

Can I return it if I find the wrong part number?

No returns on digital documents. That’s standard for parts catalogs. Double-check your serial number before you buy.

This 180-page PDF is the straight-from-the-factory parts bible for the Clark 275 III. No reprints, no third-party editing. You get the exact same document that Clark dealers used to order parts for the Michigan line. If you’re rebuilding that tractor shovel, don’t waste time calling around for parts. Access the Factory Manual, pull up the section you need, and order the correct part the first time.