Description

International Hough H-50 Parts Catalog – OEM Factory Specs

If you are buying parts for an International Hough H-50, you need the actual factory breakdown, not some aftermarket drawing that shows the wrong seal or leaves out a bolt. I have seen guys order a hydraulic pump rebuild kit based on a third-party parts list and end up with a pile of wrong O-rings. That wastes a day and costs you freight charges. This International Hough H-50 Parts Catalog is the real deal – 119 pages, printed by International Harvester Company of Great Britain Limited, with a group index that actually matches the physical tabs in the catalog. You flip to the section you need, and the part numbers are right there, linked to the exploded view.

Engine and Electrical Group Coverage

The catalog splits into four major groups: Diesel Engine (group 1), Electrical (group 2), Payloader (group 3), and Hydraulics (group 4). Page 1 shows the group index with black tabs that line up with the physical dividers – that is how you find the starter motor part number or the injector line clamp without flipping through the whole book. The Diesel Engine section covers the complete long block, fuel system, cooling, and mounting hardware. The Electrical section includes the alternator, regulator, wiring harnesses, and the instrument panel. I have used this catalog to cross-reference an alternator bracket for a Series B H-50, and the factory illustration showed a tab I would have missed otherwise.

How to Use the Group Index

Open the manual to the group index on the inside front cover. Each group has a tab color – Diesel Engine is black, Electrical is a different color, and so on. The catalog itself has die-cut index tabs so you can thumb straight to the right section. Parts are listed by group, then by sub-assembly, with the International Harvester part number and the quantity used. If you are rebuilding a H-50 transmission, you go to group 3 (Payloader) and find the torque converter and driveline parts. No guessing which seal fits. You get the factory number, order from any dealer, and it lands on the workbench correct.

3 Reasons to Trust Factory Parts Catalogs

First: the part numbers are OEM – not a repackaged aftermarket number that may supersede to something incompatible. Second: the exploded drawings show every fastener, every washer, every bushing. You see that the hydraulic control valve uses a specific O-ring dash number. A generic catalog might list a generic O-ring that is close but leaks at 2,500 psi. Third: the manual is printed by the company that built the machine – International Harvester. That means the engineering drawings are the source. No transcription errors. No “equivalent” parts. That is worth the price of admission alone.

Get the Right Part Number the First Time

When you need a part for your H-50, you do not have time to call three dealers and hope they guess right. Open this catalog, find the section (Diesel Engine, Electrical, Payloader, Hydraulics), locate the assembly, and read the part number straight off the page. I have a rule: never order a part for a Hough without the factory parts catalog open next to you. It saves you the headache of returns and the downtime of waiting for the correct piece. The group index that this catalog uses is intuitive – you will be finding parts inside ten minutes.

Hydraulics Section: What You’ll Find

Group 4 covers the entire hydraulic system: pump, control valve, cylinders, lines, fittings, and the reservoir. The drawings show the relief valve adjustment nut and the lock washer. If you need a seal kit for the lift cylinder, the catalog lists the individual seal part numbers, not a vague “kit” that may or may not fit. I have used this section to identify the correct O-ring for a steering cylinder port – the metric/standard mix-up on older equipment is brutal. This manual uses Imperial (inch) dimensions, which is what the H-50 was built with.

One more thing: the back of the manual includes a numerical index of all part numbers. If you have a part number from a bolt you pulled out, you can look it up and find which assembly it belongs to. That is useful when you disassemble something and forget where a hardware piece goes.

Right.

This is not a reprint of some aftermarket copy. This is the original International Harvester document, scanned from the factory print. You get the same information that a dealer parts counter would have used in the 1960s. The pages are clean, and the resolution is good enough to read the small print on the drawings. If you work on H-50 payloaders, you need this on your tablet or printed out in the shop.

Does this catalog include service procedures like torque specs or repair steps?

No. This is a parts catalog, not a service manual. It shows exploded views with part numbers and quantities. You will not find valve clearance adjustments or hydraulic pressure test procedures. For repair instructions, you need the corresponding service manual. But for ordering parts, this is the only document you can trust.

Will this manual work for a H-50 Series A or only Series B?

This specific catalog is for the H-50 Series B Payloader. The group index and part numbers are correct for that series. Series A had different engine and transmission options. Using this catalog for a Series A will give you wrong part numbers on many assemblies. Always match the series to your machine’s serial number plate. The manual cover clearly says “Series B.” If you have a Series A, look for the matching catalog.

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For reference, the part numbering system in this catalog follows SAE International Standards”>SAE International Standards for threads and fasteners. You can learn more about the standard at SAE International Standards.

Stop guessing part numbers and getting returns. Access the Factory Manual now and get the correct OEM part numbers for your International Hough H-50 Series B Payloader.