Description

John Deere 4420 1982 Parts Catalog

If you are ordering parts for a 4420 combine without the factory document, you are gambling with your wallet. I have watched mechanics order a water pump from a generic parts list and end up with the wrong pulley offset. Then the machine sits while you wait for the return. That costs time and money. This is the John Deere 4420 1982 Parts Catalog — 531 pages of grid-indexed part numbers direct from the factory. No aftermarket re-draws. No guesswork on fasteners.

Parts Grid Index: Section 01 and 02 Explained

The catalog is built around a grid system. Section 01 covers the basic combine structure, from the feeder house (01A) all the way to the separation system (01J). Each sub-section, like 01A02 or 01F08, maps to a specific assembly on the machine. Section 02 handles the engine and power train — 02A20 through 02F14. You locate the part on the illustration, note the grid cell, then find that cell in the parts list. It is that direct. No flipping through vague chapters. The same grid format is used across the John Deere 2130 Parts Catalog – Factory Specs for Correct Part Identification and other factory manuals, so once you learn it, you can navigate any of them.

Why Factory Part Numbers Matter

Aftermarket parts catalogs often consolidate part numbers across multiple years or models. The result? You get a number that “should work” but might not. This catalog gives you the exact John Deere part number for your specific 1982 4420. The PDF includes the official engineering drawings with callouts. When you order a hydraulic hose or a bearing, you get the one that fits. Every fastener pitch and length is listed. That means you don’t waste a trip to the dealer because a bolt was half an inch too short.

Engine Serial Number Decoding

Page 1A5 of the catalog shows exactly how to read the engine serial number plate on the 4420. The engine is a 329-cubic-inch, 6-cylinder diesel. The serial number breaks down into manufacturing unit, version, and sequential number. If you need more background on the engine type, check this Wikipedia article on diesel engines. Using the wrong engine parts because you misread the tag is a headache you do not need. This catalog shows the decoding lines for both early and later engines — one-line and two-line formats. It also includes the separator serial number locations. You cross-check your machine’s PIN with the list in Section 01A04.

Platform and Header Compatibility

A common mistake is ordering parts for the wrong header. The catalog’s note on page 1A3 explicitly lists the companion parts catalogs for the 200 Series Platform, 40/50 Series Corn Heads, and the Three-Roller Belt Pickup. If you need those, the John Deere 4500, 4600, 4700 2000 Parts Catalog – OEM Grid Index uses a similar structure, but the header-specific parts are not duplicated here. This catalog covers the combine chassis, threshing, cleaning, and cab only. For platform parts, you need the separate PC-1558. That is how factory documentation works — each system gets its own book.

Who Should Buy This Catalog?

If you own a 4420 combine and are rebuilding the feeder house or replacing the rotor drive belts, you need this. Also, if you are a parts counter person or a farm shop foreman who deals with older machines, this catalog saves you from guessing. The 1982 edition covers the 4420 through the serial number break at 550000 and beyond. It also includes the engine serial number ranges. The grid index on every section (01A through 02F) means you can hand the page to a green tech and they will find the part without help. For larger operations, the John Deere 9400, 9100, 9200, 9300 Parts Catalog – OEM Factory follows the same format, so this is a good training tool.

Does this catalog include assembly diagrams for the threshing system?

Yes. Section 01F and 01G cover the threshing drum, concave, and separator drive. Every bolt, spring, and bearing appears in the exploded views with a grid reference.

How do I verify that a part number is correct for my combine serial number?

The catalog flags part number changes at specific serial number breaks. On page 1A4, it explains how to read the combine’s PIN plate (E4420550000H for the lower range, H04420X550001 for the upper). When you look up a part in the grid, the parts list will note if it applies only before or after that break. If your machine falls in the overlapping range, you need to check the footnote. This level of detail is why factory catalogs are superior. Aftermarket reprints often omit these notes, and that is how you end up with a parking brake cable that is six inches too short.

The file is a direct PDF scan of the original John Deere PC-1745. No watermarks, no missing pages. 531 pages, published 1982. If you work on these combines, you need the real thing. this Wikipedia article on diesel engines gives background, but the parts numbers only come from the factory. Access the Factory Manual and keep it on your tablet in the cab.