Description

O&K 4500 1986 Parts Catalog

Alright, listen up. You’re trying to track down a part for an O&K 4500 loader, and you don’t want to spend hours cross-referencing aftermarket catalogs that show the wrong drawing. I get it. The O&K 4500 1986 Parts Catalog is what you need on the bench. This is the factory-issued Parts Manual TB 111, manual part number 4602577, revision 1 from February 1986. It covers serial numbers 45-1011 and up. 231 pages of exploded views and part numbers. That’s it.

Serial Number: The First Thing to Check

Before you even open this catalog, find the serial number of your O&K 4500. This manual applies to machines with serial number 45-1011 and up. If yours is older, you need a different version. The manual includes a page (page 2) where you can record engine model, transmission part number, axle numbers. Do that. It saves headaches later.

3 Abbreviations You’ll See Repeatedly

The manual uses three abbreviations that matter. AR means “As Required” — it means the part is used in varying quantities depending on build. N.S.S. means “Not Serviced Separately” — you buy it as part of a larger assembly. N.I. means “Not Illustrated” — the part exists but doesn’t show in the drawing. Remember these, and you won’t order wrong.

Does This Manual Include Torque Specifications?

No. This is a parts catalog, not a service manual. It focuses on part identification and ordering. If you need torque values for reassembly, you’ll need the factory service manual for the O&K 4500. That manual covers tightening sequences and specs. The parts catalog complements it but doesn’t replace it.

Ordering Parts the Right Way

When you order a part, include your machine model number, serial number, part number, part name, and quantity. The manual’s introduction (page 3) spells this out clearly. Use only authorized Trojan Industries parts to maintain original dependability. Don’t substitute generic parts without cross‑checking.

O&K 4500 1986 Parts Catalog: What’s Inside

The catalog covers all major systems of the loader: engine, transmission, front and rear axles, hydraulic system, body, and attachments. Each section has an exploded diagram with callouts. The part list below each diagram gives the part number, description, and quantity per assembly. You can match your machine’s configuration using the serial number.

If you need a different model, look at O&K L45, 4500Z 1990 Parts Catalog – Parts Manual TB126 for the L45 and later 4500Z. The O&K L3000 Parts Catalog – Factory OEM Manual (236 Pages) covers the L3000 loader. And the O&K L2500 Parts Catalog – Factory Specs for Part Ordering is for the L2500. For an industry overview, see Automotive Industry Overview and Automotive Industry Overview.

Frequently Asked Questions

What serial numbers does this manual cover?

Serial numbers 45-1011 and up.

Does this catalog include torque specifications for fasteners?

No. This is a parts catalog, not a service manual. It identifies part numbers and shows exploded views. For torque values, you need the factory service manual.

How do I locate a specific part using this catalog?

Use the index in the front to find the system or assembly. The index lists basic systems like engine, transmission, hydraulics, etc. Find the page number for your assembly. Turn to that page and look at the exploded diagram. Each part has a reference number that corresponds to the part list below. Pay attention to the abbreviations: AR (As Required) means no fixed quantity but used as needed; N.S.S. (Not Serviced Separately) means the part is only available as part of a larger assembly; N.I. (Not Illustrated) means the part exists on the machine but does not appear in the drawing. Using these clues, you can identify the correct part number and order it without sending back wrong items.

Can I use this catalog for a machine built after 1986?

It covers up to the printing date, but O&K made changes. Always verify with your machine’s serial number against the manual’s coverage. If your serial is above the range, look for a later revision.

Don’t waste time with aftermarket guesses. Access the Factory Manual from AutoRepairManuals and get the exact part numbers you need.