Description

Fiatallis HD-11EP 1989 Parts Catalog – OEM Factory Specs

If you’re rebuilding an HD-11EP crawler tractor and ordering parts by memory, you’re going to get it wrong. I’ve seen it happen – a guy buys a gear that looks right but the spline count is off because the serial number on his machine fell in a different range. This Fiatallis HD-11EP 1989 Parts Catalog is what you need to avoid that. It’s 382 pages of OEM factory part numbers, exploded diagrams, and cross-references that cover two distinct serial number ranges: S/N 10001-14650 and 46Y14651-UP. I’ve torqued more bolts than most people have had hot meals, and I know that when you’re digging into a machine like this, one wrong part can cost you a full day of downtime. The catalog’s safety section on page 2 even spells out proper procedure for blocking hydraulically raised equipment before you start pulling parts – something too many guys skip. This isn’t a repair manual, it’s the parts bible. You use it to order the exact bolt, seal, or bearing the factory intended.

What This Parts Catalog Covers (And What It Doesn’t)

This catalog breaks down the HD-11EP into major assemblies: engine, power train, undercarriage and track, hydraulic systems, electrical equipment, and attachments like dozers and rippers. Each section starts with an exploded diagram, then lists every part number with quantity and description. It doesn’t give you torque specs or service procedures – you need the Automotive Industry Overview for that context, but the part numbers are spot-on. The injection pump section is covered for both American Bosch and Roosa Master variants – see pages around 180 for the exact breakdown. Missing a bracket? Page 37 in the engine section shows every fastener down to the lock washer.

Safety First: Why the Manual Starts with Accident Prevention

Page 2 of this catalog is a full-page safety warning. It’s not filler – it’s the same language Fiatallis used in every OEM publication: never clean, oil, or adjust a machine while it’s in motion. For parts work, that means you don’t crawl under a raised dozer blade without mechanical blocks. The warning specifically calls out hydraulically, mechanically, and cable-controlled equipment. I’ve seen a hydraulic line blow and drop a blade six inches in a second. This catalog reminds you to support the equipment properly. If you ignore that because you think it’s just a parts book, you’re asking for trouble.

Serial Number Ranges – Why They Matter

The HD-11EP went through changes mid-production. This catalog covers S/N 10001-14650 and then a second range starting with 46Y14651-UP. The prefix 46Y indicates a major revision – different undercarriage components, different transmission input shaft. If you order a part from the first range for a 46Y machine, it might not fit. The catalog’s title page (page 3) clearly states these ranges. I’ve had guys call me saying “the parts book didn’t work” – they were looking at the wrong range. Check your data plate, then turn to the right section.

3 Reasons Aftermarket Parts Catalogs Fall Short

Aftermarket catalogs often use generic illustrations that don’t match the actual Fiatallis casting numbers. They might show a similar-looking gear but the tooth count will be off by one. This OEM catalog gives you the exact factory part number – not a cross-reference that might fit something else. Second, the exploded diagrams in aftermarket reprints are often blurred or missing dimensions. The 382 pages here are crisp scans of the original 1989 print. Third, aftermarket versions skip the safety warnings and the revision notes. You lose the context that tells you why part 12345 supersedes part 12344. Stick with the real thing.

How to Use This Catalog on the Bench

You start by verifying your machine’s serial number. Open to the introduction page. Find the section that matches the assembly you’re working on – say, the power train. The table (around page 80) lists every gear, shaft, and bearing with reference numbers tied to the diagram. Write down the part number, then cross-check it with the numerical index at the back of the catalog. I always lay the diagram flat next to the disassembled parts – line up the bolt holes. If a bolt looks wrong, page 26 in the engine section lists the correct fastener for each location. That kind of specificity is why I trust OEM documentation over anything else.

Is This Retail or OEM? The Source Matters

This is an original Fiatallis publication from 1989, form 70651804, printed in English. It’s not a reprint or a digital scan of a copy – it’s the genuine factory document that dealers used. Aftermarket versions often have missing pages or incorrect binding. The safety and introduction pages are intact, and the part numbers match the latest supersessions as of 1989. For the Automotive Industry Overview, you can see how critical accurate documentation is. If you’re restoring a vintage crawler or rebuilding a machine for a job, this catalog is the only source you should trust.

Does this catalog cover the injection pump?

Yes, injection pump is included.

What if my machine has a serial number between 14651 and 14699?

The catalog includes two serial number ranges: 10001-14650 and 46Y14651-UP. If your machine falls between 14651 and 14699, you need to verify which range applies. The ’46Y’ prefix indicates a later production change. Check your machine’s data plate and compare with the parts book’s index. If still unsure, contact Fiatallis or a dealer. This catalog’s introduction page clarifies the split.

Can I use this for the HD-11B model?

No, this specific catalog is only for the HD-11EP. Other models like HD-11B have different part numbers. See related manuals Fiatallis HD-9 1989 Parts Catalog – OEM Factory Specs or Fiatallis HD-21 1990 Parts Catalog – Crawler Tractor Parts Manual.

How many pages is it?

382 pages of exploded diagrams and part listings.

Don’t gamble your parts order on a generic catalog. For the crawler tractor that has to be ready Monday morning, get the factory documentation. Access the Factory Manual and have the correct part numbers in your hand before you touch a wrench.

• Fiatallis HD-6A, HD-6AG, HD-6B, HD-6E 1989 Parts Catalog