Description

FAI Komatsu 67-80DT Parts Catalog – OEM Parts Breakdown for Hydraulic Steering Piston

If you’ve ever ordered a steering piston seal kit for a FAI Komatsu 67-80DT and ended up with the wrong O-ring or a missing mud scraper, you know the pain. That’s what happens when you rely on aftermarket parts lists or generic cross-references. This FAI Komatsu 67-80DT Parts Catalog is the original factory document. 16 pages, straight from the FAI Noventa Vicentina plant. It gives you the exact part numbers for every component in the hydraulic steering piston assembly – Fig. 29. No guesswork, no wasted trips to the supply house. I’ve been turning wrenches since before most of you were born, and I can tell you: the only way to get a steering piston back together right is to start with the right parts. This catalog is that starting point.

What This Parts Catalog Actually Covers

This is not a repair manual. It’s a parts catalog focused on one specific assembly: the hydraulic steering piston for the FAI Komatsu 67-80DT loading shovel. The OCR excerpt shows the table – 32 numbered items ranging from the piston assembly (part number 200563000) down to the self-locking nuts and spring washers. Every item has a position number, part number, denomination in Italian and English, quantity, and notes. For example, item 3 is the piston assembly, item 4 is the complete piston assembly with cylinder, item 16 is the cylinder itself. If you need to order a replacement hose, check item 1 – the flexible hose (part number 852280005) and the rigid pipe (2005768591). The catalog doesn’t give you torque specs or repair procedures, but it does give you the foundation: the right parts.

Why OEM Part Numbers Matter for the 67-80DT

I’ve seen aftermarket parts catalogs that list a single “steering piston rebuild kit” for a dozen different models. That’s a recipe for leaks and downtime. The 67-80DT uses a specific piston (item 12, 500456050) and a specific O-ring (item 11, 500552142). The mud scraper (item 6, 500562050) is a unique size. If you swap in a generic part, you’ll have contamination in the hydraulic system before the first hour of operation. This OEM catalog comes from the same factory that built the machine. The part numbers are the ones stamped on the original components. You can compare them directly to what you pull off. That’s the only way to be sure you’re ordering the correct replacement. Automotive Industry Overview tells you that OEM standards are critical for safety and reliability. This catalog lives up to those standards.

How to Use This 16-Page Catalog on the Bench

You’ve got the steering piston disassembled on your bench. You’ve got a pile of parts, some worn, some broken. Open this catalog to page 1. The table lists every part in the assembly. Start at item 1, work your way down. Check each part number against what you have. If the O-ring is flattened, grab the part number (500552142) and order it. If the rear support bracket (item 29, 500116530) is cracked, you know exactly what to ask for. The catalog also shows quantities – two grease nipples (item 17, 860030001), two self-locking nuts (item 18, 804090118). That saves you from ordering one when you need two. FAI KOMATSU SK 07 J Technical Information Manual covers the electrical system, but for the steering piston, this parts catalog is what you need. Keep it in a ziplock bag on the bench – it’s only 16 pages, so you won’t lose it.

Parts Breakdown: From the Piston Assy to the Rear Support

Let’s walk through the key items. Item 3 is the piston assembly (200563000) – the core of the steering cylinder. Item 4 is the complete piston assembly (200063370) which includes the cylinder. If you’re rebuilding, you’ll likely need the piston itself (item 12, 500456050) and the O-ring (item 11, 500552142). The nut (item 5, 200005550) secures the piston rod. The mud scraper (item 6) keeps dirt out of the cylinder. The ring nut (item 7, 500465052) and the washer (item 8, 500550020) provide the seal. The retaining ring (item 10, 802050030) holds the assembly together. The grease nipples (item 17, 860030001) are 90-degree fittings. The rear support (item 29, 500116530) mounts the cylinder to the chassis. Each part has a specific function. Using the wrong retaining ring or spacer can cause the piston to bind or leak under pressure. FKI FAI Komatsu PC95-1 Workshop Manual – 315 Pages of Factory Specs gives you the repair procedures, but this catalog gives you the parts list.

Common Mistakes When Rebuilding the Steering Piston

First mistake: ordering parts by machine model alone. The 67-80DT has multiple revisions. The catalog shows an edition number (Ediz. 1.1083) and a usage code. Make sure you’re ordering parts that match your serial number range. Second mistake: ignoring the quantity column. The table lists two self-locking nuts (item 18). If you order one, you’ll be short. Third mistake: using generic O-rings. The O-ring (item 11) is a specific size. You can’t just grab a random O-ring from your bin. The catalog gives you the part number – order it. Fourth mistake: not checking the rear support brackets. The catalog lists two different rear support parts (item 29 and item 31) with different part numbers. If you mix them up, the cylinder won’t align. Massey-Harris-Ferguson FF 30 GS 1957 Parts Catalog | OEM Fastener Guide is a similar OEM document for a different machine – same principle: use the factory parts list.

FAQ – FAI Komatsu 67-80DT Parts Catalog

Does this catalog include torque specifications for the steering piston?

No. This is a parts catalog, not a repair manual. It lists part numbers, quantities, and descriptions. It does not contain torque values, assembly procedures, or troubleshooting steps. For that, you need the workshop manual.

How many pages is the catalog?

16 pages. It’s a compact document that covers the hydraulic steering piston assembly (Fig. 29) for the FAI Komatsu 67-80DT.

You’ve got the machine torn down, and you need the right parts. This catalog is the only way to confirm you’re ordering the correct items. Don’t rely on aftermarket cross-references that might be close but not exact. Access the Factory Manual and get the part numbers straight from the source. Your steering piston will thank you, and so will your wallet.

Related Manuals:

• FAI KOMATSU SK 07 J Technical Information Manual
• FKI FAI Komatsu PC95-1 Workshop Manual – 315 Pages of Factory Specs
• Massey-Harris-Ferguson FF 30 GS 1957 Parts Catalog | OEM Fastener Guide

Automotive Industry Overview