Description

International Harvester Cub Parts Catalog

Sixty years of turning wrenches and I still see guys ordering parts blind—wrong bracket, wrong bolt, wrong everything. You want to avoid that headache with a Farmall Cub? Get the International Harvester Cub Parts Catalog. These 54 pages are the factory-issued reference that IH dealers used to stock their shelves. No guesswork, no aftermarket reprints. Just exploded views, callouts, and part numbers that match what came off the assembly line.

What the 54 Pages Actually Contain

This catalog covers the McCormick and McCormick-Deering Farmall Cub tractor. You get a cut-away view (page 3) showing internal working parts, plus right and left side views. Every major assembly is broken down into numbered illustrations. Need a clutch release bearing? Find the illustration, read the callout, order that number. The pages are organized by component group—engine, transmission, steering, hydraulics, electrical, sheet metal, and attachments. You won’t find step-by-step repair procedures here; that’s what the service manual is for. But for getting the right part the first time, this catalog is your only source.

Why Use an OEM Catalog Over Online Parts Lookup?

Aftermarket parts databases often show superseded numbers or skip revisions. IH released multiple design changes during Cub production. This catalog lists original part numbers with the factory suffixes that tell you which revision fits your serial number range. If you order a brake band from the wrong revision, it won’t seat right. The catalog also references SAE fasteners and standard hardware—check SAE International Standards for thread specs. Your Cub might have a continental or Wisconsin engine variant; the catalog cross-references those differences. I’ve seen more than one engine swap fail because a guy used a generic gasket set. Factory drawings don’t lie.

Illustrations: How to Read the Exploded Views

Each illustration uses a leader line from a part number to the component. Some pages show the same assembly from different angles—like the steering gear box. Page 20 (if memory serves) breaks down the steering column into the worm gear, sector, bushings, and seals. You’ll see a parts key with quantities listed. Don’t skip the “Remarks” column; it notes whether a part is used only on certain serial numbers or after a specific change. Pay attention to the “Key” numbers—they correspond to the illustration. If you need a bolt, the catalog gives the nominal size and thread pitch. Cross-check with your hardware before ordering.

Using This Catalog with a Service Manual

For actual torque specs, fluid capacities, and adjustments, you need a repair manual. But when you are tearing down a Cub and find a cracked gear, you flip to the catalog, identify the part number, and order it while the machine is apart. this Wikipedia article on diesel engines (yes, Cub was gasoline, but the same parts philosophy applies) explains how IH standardized many components across models. Pair this catalog with the International Harvester H30B Operators Manual – Factory Specs, 74 Pages for operating procedures, or the International Harvester Farmall Cub & Cub Lo-Boy Technical Manual – 32 Pages for overhaul specs. The International Harvester Cub Cadet Tractor Service Manual – OEM Factory Specs also shares some drivetrain parts—worth checking if you have a later Cub Cadet.

3 Reasons This Catalog Belongs on Your Bench

• Original source document from 1947–1960s production run—no reprints, no scanned garbage.
• Every part number traceable back to IH engineering drawings.
• 54 pages of factory spec information that aftermarket sites charge $20 for a single part lookup.

You won’t find a cheaper, more accurate way to order parts for a Farmall Cub. Period.

Frequently Asked Questions

Does this catalog include torque specifications or repair steps?

No. This is a parts catalog only. It lists part numbers and illustrations. For torque values, buy the factory service manual.

How can I use the illustrations to verify the correct part when my Cub has been modified?

Start by finding your tractor’s serial number (stamped on the left side of the transmission housing). Compare the illustrations with your actual machine. Many aftermarket conversions replace the original carburetor or electrical system. The catalog still shows the factory configuration. If a part was superseded, the remarks column will say “Use on tractors serial No. ##### and above.” For non-stock modifications, you’ll need to cross-reference the original part number with the aftermarket brand’s interchange list. But the catalog gives you the starting point—without it you’re flying blind. I keep a printed copy in my shop’s file cabinet. When a customer brings in a basket-case Cub, I pull the catalog before I even touch a wrench.

If you’re tired of ordering wrong parts and losing time, Access the Factory Manual now. It’s a direct PDF of the IH TC-37A catalog—54 pages of factory-accurate part information you can use immediately.