Description

Clark Equipment 175 IIIA, 176 IIIA 1971 Parts Catalog

You’re staring at a bin full of hydraulic fittings, none of which match the port on your pump. The part number stamped on the old housing is too worn to read. Your machine is down, the rental bill is ticking, and the parts counter guy is asking for a serial number you can’t find. I’ve seen that look on too many faces. This is exactly why you need the Clark Equipment 175 IIIA, 176 IIIA 1971 Parts Catalog — not a photocopied cheat sheet, not a generic online list, but the actual factory-issued document that tells you which part goes where, down to the last O-ring.

Before you order a single bolt, check the serial number. Page 1 of this manual lists exact serial ranges for all three engine variants: 175 IIIA with GM 6V-71N (serial 323EN2001-1 Thru), 175 IIIA with Cummins V8-265-CI (serial 323EN2001-2 Thru), and 176 IIIA with GM 8V-71N (serial 323EN2001-3 Thru). I’ve had guys argue with me that “it’s the same machine” — it’s not. The pump mounts, bell housing, and even some steering components differ between those serial breaks. Miss the range, and you’ll be waiting another week for the right part.

How This Parts Book Is Organized

Clark Equipment didn’t throw random drawings in a binder. Page 5 explains the layout: Basic Group Numbers divide the machine into main systems — engine, transmission, hydraulics, and so on. Each group splits into sub-groups. The page number itself tells you the group (first two digits) and the country of origin (a letter code). For example, a page numbered 18E-011 is Group 18 (Hydraulic Pumps), European specification. The Pictorial Index on the early pages shows an exploded view of the whole machine with callout numbers linking to the Basic Group Index. It’s not a guessing game — it’s a coded reference system that, once you learn it, saves hours.

Aftermarket reprints often scramble the page numbers or crop the illustrations. You lose the dotted lines that indicate an optional attachment or the “Thru” serial number notes. This is a true scan of the 1971 publication, all 163 pages intact. Every exploded view, every parts list table, every footnote about country-of-origin variations. I’ve seen shops waste a full day because their aftermarket PDF didn’t show the correct dowel pin location for the steering cylinder mount. That day is billable time the customer won’t pay for.

Serial Ranges: Why They Matter More Than the Model Badge

You can have two 175 IIIA machines sitting side by side, one with a GM 6V-71N and one with a Cummins V8-265-CI. The starter motor, alternator bracket, and even the transmission bell housing are different. Page 1 gives you the serial cut-offs. If your machine falls between 323EN2001-1 and the next prefix, you use the GM section. If it’s under 323EN2001-2, you’re in Cummins territory. The 176 IIIA runs the GM 8V-71N, which shares some drivetrain parts but not the engine itself. I cannot stress this enough: without those serial ranges, you’re ordering blind.

Parts Catalog vs Service Manual: Know the Difference

This manual is a parts catalog, not a repair manual. It won’t tell you how to rebuild the torque converter or what the hydraulic pressure should be. What it will do is give you factory exploded views, part numbers, and quantity per assembly. If you need service procedures, you want the corresponding Clark Equipment shop manual. But for ordering parts, this is the only source you should trust. Aftermarket parts websites often list “universal” replacements that may or may not fit your little end bearing. The OEM catalog tells you the exact Clark part number, so you can cross-reference with current suppliers or NOS stock. I’ve used it to locate a long-discontinued steering valve seal by matching the illustration to a vintage inventory list.

Why OEM Documentation Beats Photocopies and PDF Scrapes

Look, I get it — you can find a 50-page “parts list” online that someone typed up from a photo. It’ll miss the hardware table that calls out the grade of bolt required for the articulation hitch. This manual includes the country-of-origin codes (UK-built vs US-built machines) which affect whether you need metric or SAE fasteners. Clark Equipment manufactured under license in Camberley, Surrey, England, and the parts book was published for the European area. That means the electrical components, hydraulic fittings, and even the decal sets follow European standards. If you’re running a machine in North America, pay attention to the “E” in the page number — you may need to convert some part numbers to US domestic equivalents. That detail is lost in every reprint I’ve seen.

FAQs on the Clark 175 IIIA / 176 IIIA Parts Catalog

Is this the same as the “Michigan 175 IIIA” manual?

Yes. Clark Equipment marketed these machines under the “Michigan” trade name. The cover reads “MICHIGAN TRADE-MARK OF CLARK EQUIPMENT CO. U.S.A.” — same manual.

Does this manual include torque specs?

No. This is a parts catalog, not a service manual. Torque values are in the separate repair manual.

How do I know if my serial number falls within the listed ranges?

Look at the serial plate on your machine. If it starts with 323EN, match the suffix (2001-1, 2001-2, or 2001‑3). If your machine was built before or after these ranges, you need the supplement that covers later serials. The manual itself states the range on page 1.

Can I use this manual for a Clark 175 without the “IIIA” suffix?

Not reliably. The “III A” designates a specific generation with the articulated frame and certain engine options. Earlier 175 models (non‑articulated, or “II” series) have different axle assemblies and hydraulic systems. Stick to the exact model suffix.

If you are serious about keeping your Michigan 175 IIIA or 176 IIIA running without ordering three wrong pumps before you get the correct one, get the factory documentation. Access the Factory Manual — the 163-page original, not a knockoff.

Related manuals: Clark Equipment 75B 1989 Parts Catalog – OEM Factory Manual, Clark Equipment 310, 310III Parts Catalog – OEM Factory Manual, Clark Equipment 12E2E 1968 Parts Catalog – OEM Factory Manual. For broader context on the construction machinery industry, see Automotive Industry Overview Automotive Industry Overview or the same article Automotive Industry Overview.