Description

Sperry New Holland 1580 AL Parts Catalog – 357 Pages of Factory Parts Data

I’ve been wrenching on combines for twenty-plus years. Nothing—and I mean nothing—pisses me off more than watching a guy pull a part off the shelf, slap it on, and find out the bore is wrong or the seal doesn’t fit because he used an aftermarket parts list. That’s a half-day of lost harvest time and a phone call to a supplier that won’t answer till Monday. The Sperry New Holland 1580 AL Parts Catalog kills that bullshit cold. 357 pages. Factory-issued. Every part number comes straight from the Belgium plant that built these machines. If you’re trying to keep a 1580 AL alive, you need this on your bench or in your tablet case.

GROUP 2 Through GROUP 66: What Each Section Covers

This catalog splits the machine into eight functional groups. GROUP 2 kicks off on page 9 with the engine-related parts—block, head, gaskets, the basics. GROUP 10 (page 19) dives into the cutterbar and header drive. GROUP 20 (page 31) covers the feeder house and elevator chain assemblies. From there it goes into the rotor and separation system (GROUP 32, page 34), cleaning fan and sieves (GROUP 35, page 44), grain handling and tank (GROUP 45, page 60), hydrostatic and transmission (GROUP 61, page 65), and finally final drives and wheels (GROUP 66, page 69). Each group has a figure index and part-number table. No guesswork—find the figure, match the callout, order the number.

You ever try to track down a seal for the Hylac cylinder on a 1580 AL? Page 2 of this catalog has the errata. It lists the old part number 446041 as the new seal repair kit. If you bought the old number, you’d be stuck with a box that doesn’t match the updated cylinder. That’s the kind of detail an aftermarket parts site will never give you.

Does This Catalog Include the Errata Sheet?

Yes. The original Issue 496966 includes a full errata page (page 2) that cross-references old part numbers to superseded numbers. GROUP 43, FIGURE * gets the 446041 seal repair kit. GROUP 50, FIGURE 14 gets 418013 instead of 443711. GROUP 67, FIGURE 38 gets 301128 bearing. GROUP 65, FIGURE 50 gets 353985 bracket. These corrections are printed, not a digital add-on. You get them in the file.

3 Reasons to Use Factory Parts Numbers

1. Fit precision. Sperry New Holland designed the 1580 AL with metric and imperial fasteners mixed in. Aftermarket catalogs often merge part numbers across model years. This catalog shows the exact number for your combine’s build batch.
2. Interchange awareness. The errata page tells you which numbers are obsolete and what replaced them. If you order the old part, you’re wasting money.
3. Grouped troubleshooting. When a bearing in the separator screams, you go to GROUP 32, not a generic “drive parts” category. Each figure has a callout that maps to the part table.

I put this manual on a tablet bolted to my toolbox. When a customer’s 1580 AL comes in with a sieves issue, I flip to GROUP 35 (page 44), find the figure, and read the part number straight off the screen. No flipping through a three-ring binder, no guessing if the “PTO shaft” they sold me is for the 1580 or a 1550. That’s the difference between a two-hour job and a two-day parts chase.

Understand the Group Index Before You Order

Flip to page 4. The group index lists GROUP 2 through GROUP 66 with their starting pages. Most parts catalogs hide the index in the back. Sperry New Holland puts it right up front—page 4 and 5. That tells you the manual was written for a tech who doesn’t have time to search. If you’re ordering a part for the cleaning fan, you go to GROUP 35. If you need a final drive bearing, GROUP 66. Memorize that front page, and you’ll cut your lookup time in half.

Parts Catalog vs Service Manual: What’s the Difference?

This is a parts catalog, not a repair manual. It won’t tell you how to rebuild the rotor or adjust the concave clearance. What it does give you is every damned part number, every gasket set, every seal, every bracket and bearing, organized by machine system. If you’re pulling a hydraulic motor off the 1580 AL, you need the service manual for the teardown procedure and the parts catalog to order the correct o-ring kit. Don’t confuse the two. I pair this catalog with the factory service manual for the 1580 AL—then I’ve got the whole picture. For related parts data, check the Sperry New Holland OM 352 Parts Catalog – 48 Pages of Factory Parts Data if you’re working on OM 352 engines, or the Sperry New Holland OM 352 Parts Catalog – 66 Pages for a more complete engine coverage. There’s also the Sperry New Holland OM 401 Parts Catalog – OEM Factory Parts Data for the larger displacement variant.

The 1580 AL combine was built during a period when Sperry New Holland was refining its harvesting technology. For context on how agricultural equipment evolved, you can read the Automotive Industry Overview, though that article covers automotive more than ag. For a broader view of manufacturing standards that affect parts consistency, the Automotive Industry Overview gives background.

Can I use this catalog to identify parts on a 1580 AL that has been modified with aftermarket components?

No. This catalog lists only factory-original parts. If the previous owner swapped in a non-OEM header or a different hydraulic pump, those parts won’t appear. You’ll need to cross-reference the original part numbers and hope the aftermarket components use compatible interfaces. That’s when you call the dealer and read them the old part number.

Does this catalog include illustrations or just part numbers?

The figures are line drawings with callout numbers. Each figure corresponds to a table on the same spread. Text is in English, French, German, Italian, and Dutch—straight from the Belgium plant. No color photos, but you don’t need them when the drawing shows exactly where the bolt goes.

Look, if you’re half-assing a combine rebuild, you’ll order the wrong part at least once. That’s a $100 mistake and a day of downtime. This catalog is $35 and takes ten minutes to learn. I’ve got a copy in my shop, and the only time I’ve ever been burned was when I trusted a third-party list. Access the Factory Manual and put it on the device you carry to the field. Your combine—and your wallet—will thank you.