Description

Michigan 380 III A Parts Catalog

If you’re hunting for a part number on a Michigan 380 III A Parts Catalog and your only clue is a smudge on a casting, you know the frustration. I’ve been there – three hours on the phone with dealers who can’t read their own microfiche. This is the factory book. Clark Equipment printed it. 204 pages of exploded views, callouts, and the exact numbers you need to order without returns. No third-party interpretations. No “compatible with” garbage. You get the same document the parts counter uses.

Transmission and Converter Parts

Your 380 III A’s transmission case (page 48) is a hefty casting. If you’re rebuilding the clutch packs or replacing the converter, you need the right planetary carrier, seal kit, and gasket set. The manual lists the cartridge kit for transmission and converter on page 61, along with the converter charging pump and pressure regulating valve. Every part number is keyed to the exploded diagram. No guessing which spline count fits the input clutch – it’s drawn and labeled. I’ve seen guys order a fourth clutch when they needed a splitter clutch because some aftermarket catalog lumped them together. That doesn’t happen with this book.

Brake System: Detailed Breakdown

Brake assembly front and rear – page 85. Air brake valve, slack adjuster, cam shaft, shoe lining. If you’re replacing the air brake pedal or the foot valve, the manual pages for brake air lines (front on page 89, rear on pages 91–101) give you the routing and fitting part numbers. The air chamber on the front axle (page 73) is different from the rear (page 79). You have to know which diaphragm and pushrod length you need. This catalog ends the guesswork.

204 Pages of Factory Part Numbers

That’s 204 pages of verified OEM data. Every section – Engine Accessories (pages 1–7), Axle Assemblies (front drive 71–73, rear drive 79), Steering Cylinder Assembly (page 113), even the cockpit wiring harness (page 143) – it’s all here. You also get the blade assemblies for straight, coal, and “U” blades with cutting edges on pages 161–164. The electrical diagrams (page 156) are factory-original, not redrawn by someone who thinks a ground wire is optional.

Why OEM Beats Aftermarket for Parts Catalogs?

Aftermarket parts catalogs are reprints from sources that don’t own the dies. They often crop the part number off the edge of the page or use a generic illustration that fits ten different models. This manual is a direct scan of the original Clark Equipment document – same numbering, same callout lines, same notes about superseded parts. That matters when you need a Automotive Industry Overview of how this dozer’s hydraulic shift control valve (page 43) integrates with the main control valve (pages 133–141). You can’t fake that level of detail.

Parts Catalog: The Inventory You Need

If you’re running a shop that services these machines, you need this catalog on your bench. The engine accessories section alone covers the fan, by-pass filter piping, support parts. The Valve section includes air brake valve, converter pressure regulating valve, and downstream pressure regulating valve. Every component is linked to a page number. You don’t have to flip through random sections – the index at the front lists every item alphabetically. Found “Air Breather, Transmission” on page 47? That’s part of the transmission case group. The logic is consistent.

I’ve seen too many jobs stalled because someone ordered the wrong planet carrier for the rear differential (page 81) instead of the front (page 75). That’s a week of downtime and a restocking fee. Spend the money on the factory manual instead. For the price of a few wrong parts, you get certainty.

FAQ

Is this a service manual or a parts catalog?

Parts catalog. It lists every component with part numbers and exploded diagrams. For repair procedures you need the service manual. But without the right parts, a service manual is useless.

Does it cover the 380 III A with Cummins engine? My serial number is 418A101.

Yes. The cover page states this manual applies to 380 III A Cummins – serial numbers 418A101 and after. That includes your machine. The engine accessories section (pages 1–7) covers the Cummins setup, including by-pass filter piping and the engine hourmeter. If your machine is one of the earlier ones with a different engine, this won’t match. Check your serial number before buying.

Related manuals you might need: Michigan Model 380 III A Articulated Tractor Dozer Parts Manual and Michigan 380 III A 1966 Parts Catalog | OEM Factory Manual. Also check VOLVO BM 125C Wheel Loader Parts Catalog if you work on other equipment. For general industry context, see Automotive Industry Overview on Wikipedia.

Stop losing time chasing parts. Access the Factory Manual now.