Description

Fiatallis 41B Parts Catalog – Factory Parts Breakdown for Crawler Tractor

If you’ve ever ordered a part for a 41B and got the wrong one because the parts counter read a worn-off casting number wrong, you know why this catalog sits on my bench. It’s a 455-page OEM Parts Catalog, not a reprint or a scan from someone’s third-party collection. Fiatallis put this together so you can point at an exploded view and say ‘that one, right there’. The Fiatallis 41B Parts Catalog gives you the factory part numbers, not a parts-store cross-reference that might be superseded twice.

Brakes are a system where you cannot afford to guess. The catalog lists BRAKES on section 11-15, with separate entries for BRAKE CONTROL (11-11) and the BRAKE CYLINDER (Safety Brake) on 11-22. Each component has its own part number, illustration reference, and quantity. That brake cylinder – if you pull the wrong one, you’re tearing the drum apart twice. Page 11-22 tells you exactly which cylinder fits the 41B safety brake system.

Does This Catalog Cover the Engine and Mounting?

Yes, it covers the whole power plant. ENGINE & MOUNTING shows up on page 1B-13, with the block, head, and gasket sets. The index also lists ENGINE CONTROLS (1C-21), ENGINE PROTECTION SYSTEM (1C-7), and even the ENGINE BREATHER HOSE (1P-14). If you need the oil filter elements or the water filter, look under FILTERS on 1B-14. The catalog follows the same section numbering as the service manual, so you can jump from the parts list to the repair procedure without flipping back and forth.

3 Key Systems You Can Identify with This Catalog

First, the Final Drive: housing on 1H-12, outboard bearing and seal on 1H-4, sprocket shaft and gear on 1H-7. Second, the Hydraulic Cylinders – the dozer cylinder (2D-17), ripper cylinder (2F-23), and tilt cylinder (2D-7) each get their own page with seals, pistons, and rod part numbers. Third, the Steering Controls – steering oil filter on 1H-21 and the control valve return lines for dozer, ripper, and tilt on 2E-23. If you’re rebuilding the steering system, you need those filter and seal numbers right.

Valves and Control Valve Return Lines – What the Index Shows

Valves are scattered through the catalog because there are so many. AUXILIARY VALVE CONTROL on 2G-7, CAB HEATER VALVES on 2C-14, and the CONTROL VALVE RETURN LINES for dozer, ripper, and tilt on 2E-23. The alphabetical index groups them, but you still have to check the numerical index (page 2G-17) if your part number has been superseded. Aftermarket catalogs often combine multiple models into one listing – this one keeps everything model-specific. For example, the valve used on the 41B dozer circuit is not the same as on the HD-9.

Source Validity – Why OEM Beats Aftermarket Indexes

I’ve seen parts stores print a generic hydraulic parts list and call it a catalog. This is the real deal – original Fiatallis factory documentation. The page numbers match the original bound manual. No missing sections, no grainy photocopies. If you need background on how heavy equipment parts numbering systems evolved, read the Automotive Industry Overview on Wikipedia. That context helps you understand why OEM catalogs use specific numbering conventions that aftermarket copies butcher. For more context on OEM documentation standards, see the Automotive Industry Overview Automotive Industry Overview.

For the smaller Fiatallis models, check the Fiatallis HD-6A, HD-6AG, HD-6B, HD-6E 1989 Parts Catalog if you work on those. The Fiatallis HD-21 1990 Parts Catalog – Crawler Tractor Parts Manual covers the larger machine. Each uses the same section-numbering logic.

A final tip: the catalog includes PACKAGE PARTS on 1B-11 and PAINTING & MARKING on 1K-19. If you’re restoring a 41B and need the correct decal or paint code, that’s in there too. Don’t skip the numerical index – it’s the fastest way to find a part when you only have a number from a casting.

Can I use this catalog to find parts for the engine cylinder block?

Yes. Look under ENGINE & MOUNTING on page 1B-13 for the block, head, and gasket sets.

What if the part I need is listed under a different name in the alphabetical index?

The alphabetical index is your starting point, but don’t stop there. For example, the brake cylinder is listed under ‘BRAKE CYLINDER’ on page 11-22, but you might also find it under ‘SAFETY BRAKE CYLINDER’ in some diagrams. Cross-reference with the numerical index starting on page 2G-17, which lists parts by part number. If you still can’t find it, check the section-specific exploded views – each major system has its own section (e.g., 1B for Engine, 1H for Final Drives). Manuals like the Fiatallis HD-9 1989 Parts Catalog – OEM Factory Specs follow the same numbering logic. You will need to match the part number from the illustration to the parts list in that section. This eliminates the guesswork.

If you work on these machines, you need the part numbers to be right the first time. Access the Factory Manual and keep it in your toolbox next to your torque wrench.