Description

O&K 3000 Parts Catalog – Factory OEM Part Numbers and Schematics

I’ve been turning wrenches long enough to know that chasing down a part number for an old O&K loader can turn a one-hour job into a three-day headache. You order from a sketchy aftermarket list, get the wrong seal, and the machine sits. The O&K 3000 Parts Catalog takes that guesswork off the bench. This is the same binder the dealer used in 1975. 215 pages of factory exploded views, part numbers, and the operating instructions you need to keep the loader running. No reprints. No clipped diagrams.

215 Pages of Factory Part Numbers

You want a front axle brake group? It’s in there. Bucket cylinder seals? Page listed in the index. The manual is broken into two halves: general instructions and the parts listing. The general section covers adjustments, battery care, capacities, pressures, electrical system specs, filters, lubrication charts, and the full start-up procedure. The parts listing runs from “Accelerator Pedal and Linkage” all the way to “Winch/Stabilizer Kit”. Every major assembly is drawn with callouts. The part number is right next to the part. No scrolling through a digital mess.

Electrical System Components Covered

Electrical gremlins on old equipment cost billable hours. This catalog includes a dedicated “Battery and Wiring” section, plus “Head Lights”, “Lights”, and a full “Wiring” entry. You get the factory routing and connector part numbers. The instrument panel gauges and wiring are shown so you can track down the right sender or switch without pulling five harnesses apart. If you are rebuilding a 3000 from a barn find, start with the Electrical section.

Bucket Cylinder Hydraulic System – Full Breakdown

Hydraulic leaks on these loaders usually come from the bucket cylinder or the main control valve. The manual gives you a dedicated page for the “Bucket Cylinder Hydraulic System”, plus separate listings for the cylinder itself, the clam cylinder, lift cylinder, and steering cylinder. The main hydraulic pump, steering pump, and the 2-spool and 3-spool control valve assemblies are all illustrated. You can order the exact seal kit without returning a core.

Does This Manual Include Torque Specs?

Not in the way a service manual does. This is a Parts Catalog and Operating Instructions. The general section covers capacities, pressures, and electrical system specifications. For torque values on head bolts or axle flange nuts, you will need the corresponding service manual. But for identifying which bolt goes where and getting its part number, the catalog beats any aftermarket source. The index on page 1 helps you find any assembly fast.

Understand the Index Before You Turn a Wrench

Flip to the front. The index lists every system alphabetically: Axle Assembly Front and Rear, Brake Controls, Clutch Groups, Converter Assembly, Differential Groups, Engine and Related Parts for both GM and CD engines, Ether Starting Kit, Exhaust System, Fuel Tank, Grille, Heater Assembly, Hood, Leveling Arm, Lift Arm, Main Frame, Muffler, Pillow Block, Pivot Group, Planetary Hubs, Power Cluster, Propeller Shafts, Radiator, Range Selector, Seat Selector, Sheetmetal, Steering, Swivel Joint, Throttle, Tires, Torque Converter, Transmission, Valve Controls, Winch/Stabilizer. If it’s bolted to a Model 3000, it’s in this book.

Why OEM Beats Aftermarket Parts Lists

Aftermarket parts catalogs copy from scans and miss revisions. This manual includes Revision 4 and the factory manual part number 2022702. The serial number blanks on page 2 are there so the original owner wrote in the engine, transmission, and axle numbers. When you order parts with the OEM number from this catalog, you get the right part the first time. No cross-referencing. No returns.

Frequently Asked Questions

What years does this catalog cover?

This manual was printed October 1975 and includes Revision 4. It covers the O&K Model 3000 loader produced around that time. Check your machine serial number against the manual’s blank fields.

Does it include operating instructions?

Yes. The first section covers safety precautions, start-up procedure, operation, lubrication, and adjustments.

Can I use this for a different O&K model?

No. This is specific to the Model 3000. For other models like the L45 or 4500Z, see the related manuals below.

How many pages is it?

215 pages.

Related Manuals

• O&K 3000 Parts Catalog”>O&K 3000 Parts Catalog
• O&K 3000 1975 Parts Catalog – Factory OEM Part Numbers & Schematics”>O&K 3000 1975 Parts Catalog – Factory OEM Part Numbers & Schematics
• O&K L45, 4500Z 1990 Parts Catalog – Parts Manual TB126″>O&K L45, 4500Z 1990 Parts Catalog – Parts Manual TB126
• Automotive Industry Overview
• Automotive Industry Overview

Don’t waste another afternoon chasing ghost part numbers. Access the Factory Manual and keep your 3000 loader on the job.