Fiat-allis M-100, 100-B Parts Catalog – 366-Page OEM Factory Manual

Listen, if you’re working on a Fiat-allis M-100, 100-B Parts Catalog and digging through aftermarket cross-reference charts to find a bolt or a seal, you’re burning time—and cash. I’ve seen guys order the wrong injector pump gear because some third-party site had a blurry scan. These machines are old, parts are scarce, and you don’t get a second shot at a correct part number. That’s why this factory parts catalog exists.

What the Fiat-allis M-100, 100-B Parts Catalog Includes

This is a 366-page OEM publication, form 70680409 English, covering both the M-100 and the 100-B motor graders. The first pages contain a supplement (dated 1972) that updates part numbers for machines with Bosch-Germany injection pumps and serial number breaks. You get factory part numbers, exploded-view illustrations, and item callouts—the same stuff the dealer’s parts counter used to pull from a microfiche. Page 2 has the safety warnings: never clean or adjust a machine while it’s moving, and always lower hydraulically-controlled equipment to the ground before servicing. That’s not fluff—that’s the difference between walking away and a trip to the ER.

Engine Assembly and Injection Pump Coverage

The catalog lists standard engine assemblies for grader serial numbers #05130 through #06588, and a separate turbocharged engine with Bosch-Germany injection pump for units #06589 and up. Part numbers like 4359358-1 and 4359736-8 appear on page 14, with exact supersession notes. You won’t find “fits all” garbage here. Each part number ties to a specific range of serial numbers and a specific illustration. The supplement sheet tells you exactly which pages to add or revise.

Safety: Factory Warnings on the First Pages

Before you order a single part, read page 2. It quotes the National Safety Council: most accidents come from ignoring basic safety rules. The manual warns that hydraulically or cable-controlled equipment must be lowered before service. If you need to raise a blade or a ripper for access, support it with stands, not the hydraulic cylinders. That’s not a suggestion—it’s printed in bold in a document that dates back to 1971 and was still reprinted in 1981. These rules haven’t changed because they work.

Handle Serial Number Updates with the Supplement

The front of this catalog includes “Supplement No. 1” dated 7-72. It lists page-by-page changes: page 14 item 1 gets a new part number, page 17 gets a new cover part, page 18 has fastener changes. If you skip the supplement, you risk ordering parts that don’t fit your specific grader. Pull the serial number off the frame tag, then cross-check it against the supplement’s effective ranges—#067S06589 and up, or earlier builds. The supplement also tells you how to replace or add pages to your physical copy.

366 Pages of Factory Illustrations and Part Numbers

Every one of those 366 pages is a block of usable information. The catalog starts with the engine group, then moves through the transmission, final drive, blade circle, hydraulic system, and cable controls. Each section breaks down into exploded diagrams with numbered callouts. The part numbers are Fiat-Allis OEM, not aftermarket reprints. I’ve seen what happens when someone uses a generic cross-reference on a grader’s steering valve—a 5-hour job turns into two days of reordering. This catalog stops that.

If you service other Fiat-Allis equipment, you’ll want to check these related manuals: Fiat-Allis HD41 Parts Catalog – 370-Page OEM Factory Manual, Fiat-Allis 12G-B 1979 Parts Catalog – OEM Factory Manual 337 Pages, and Fiat-allis 6G Parts Catalog – OEM Factory Manual 559 Pages. For background on industrial equipment parts sourcing, see this Automotive Industry Overview. Another resource is Automotive Industry Overview for general context on heavy machinery documentation.

Does this catalog include part numbers for the Bosch injection pump?

Yes, for units with serial number 06589 and up.

How do I use the supplement sheets?

The supplement at the front of the catalog lists changes by page and item. For example, on page 14, item 1 part number 4359358-1 is replaced by 4359736-8 for certain engine numbers. You need to check your grader’s serial number against the supplement’s effective ranges, then note revised pages. Replace or add pages as instructed. This ensures you order the correct part for your specific machine.

Don’t gamble on aftermarket part lists. You have the serial number, you have the machine—now get the correct factory information. Download the Factory Manual.