Description

O&K 2000 Parts Catalog

You’re staring at a Trojan 2000 loader with a blown hydraulic line and no idea which seal number to order. Without the factory parts breakdown, you’re guessing – and guessing costs hours and money. This O&K 2000 Parts Catalog is the real deal: 212 pages of original OEM exploded diagrams, part numbers, and serial number ranges straight from the Eaton Corporation bench. I’ve used these manuals since the 70s, and nothing else matches the accuracy when you’re ordering bits for old iron.

O&K 2000 Parts Catalog: What the 212 Pages Cover

Every page in this manual is a direct scan of the factory document – not a reprinted aftermarket copy with blurred lines and missing callouts. You get the full parts breakdown for the Model 2000 Trojan Tractor Shovel, covering everything from the engine block to the bucket pins. The manual identifies each component with a figure number and a corresponding parts list that includes the original O&K part numbers. Need a transmission seal? Flip to the transmission section. Front axle bearing? It’s in the axle group. The indexing is straightforward, and the exploded views show you exactly how parts stack together.

Identifying Components from Engine to Axle

Page 4 of the manual gives you spaces to record your machine’s serial numbers – engine model, transmission part number, front axle, rear axle. That tells you this manual expects you to match your specific unit to the correct parts. The catalog covers serial numbers 20-1011 and higher. If your loader falls below that range, you need a different parts manual. Inside, you’ll find sections for the engine, transmission, torque converter, front and rear axles, steering system, hydraulic cylinders, and the frame attachments. Each section lists the O&K part number and the quantity required, so you order exactly what the factory spec calls for.

The Serial Number Scope: 20-1011 and Higher

This is the critical detail most aftermarket catalogs get wrong. The manual part number is 2022950, revision 3, published December 1975. It covers the O&K 2000 serial number 20-1011 upward. If you have an earlier machine, look for the pre-1010 catalog. The reason this matters: O&K revised part designs across serial breaks. Ordering a pin from a cross-reference guide might get you the wrong diameter. The factory manual eliminates that guesswork because it shows the exact part used at your serial range.

Warranty and Original Documentation (Page 3)

Flip to page 3 and you’ll find the Eaton Corporation warranty statement from the 1970s. It spells out the terms – 180 days or 1000 hours, whichever comes first. That’s historical context, but it also proves this is a genuine OEM artifact, not a photocopy of a photocopy. The warranty page includes Eaton’s Troy, New York address and phone number. For a 1975 document, it’s remarkably clean. The manual is format TB076, and the introductory page (page 5) explains that it illustrates and identifies maintenance parts for the Model 2000 Yale Loader. O&K marketed these under the Yale and Trojan names, so if you’ve got a Trojan 2000 or Yale 2000, this is the same machine.

Using This Manual on the Workbench

You don’t read this like a novel. You put it on a stand next to the machine, find the figure that matches your assembly, and read the callout numbers. Each part number is listed with a description and quantity. Keep a grease pencil handy to mark parts you’ve ordered. The manual is 8.5×11 pages, clear enough to read under shop lights. If you’re rebuilding a transmission, you’ll trace the torque converter seals, clutch discs, and shaft assemblies. For the front axle, you get the differential case, carrier, and steering knuckle breakdowns. This is the same book a dealer parts counter would have used to sell you the correct bearing race.

Related manuals you might need: O&K 2000 Parts Catalog covers the base model. For a later version, see O&K 2000 1985 Parts Catalog – Factory Specs & Diagrams. And if you’re working on the L45 or 4500Z, grab O&K L45, 4500Z 1990 Parts Catalog – Parts Manual TB126. For background on parts documentation standards in the industry, refer to Automotive Industry Overview and Automotive Industry Overview.

Does this manual cover the Trojan 2000 with a different serial number?

Only for serial numbers 20-1011 and higher. Earlier serial numbers require a different manual.

What is the difference between this parts catalog and a service manual?

A service manual tells you how to remove and replace components, with torque specs and procedures. A parts catalog gives you exploded diagrams and part numbers so you can order the correct replacement. You need both to do a proper rebuild, but if you only have budget for one, start with the parts catalog to avoid ordering wrong parts. This one has 212 pages covering every nut and bolt on the Model 2000.

Are the part numbers still current?

O&K was acquired and some parts may have superseded. Use this as a base and cross-reference with current suppliers.

Is this the same manual that came with the machine?

This is the factory parts manual part number 2022950, Revision 3, originally published December 1975. It’s the official document.

Don’t waste another afternoon flipping through aftermarket cross-reference sites that give you the wrong bushing. Access the Factory Manual and get the exact part numbers O&K printed for your Trojan 2000. It’s the only way to order with certainty.