Farmall Cub / International Cub & Cub Lo-Boy Tractor 1947–1970 Parts Catalog (P/N TC-37F)

• Covers 1947–1970 Farmall Cub, International Cub, and Cub Lo-Boy tractors, including variants with 6-volt and 12-volt starting systems
• Official International Harvester Company publication Part Number TC-37F, Revision No. 6, issued 1979
• Contains 169 pages of detailed exploded-view diagrams, numerical part indexes, and group-indexed service components
• Consolidates all preceding editions into the final authoritative part-number reference for the entire Farmall Cub production run
• Breaks down essential sub-systems including Touch-Control hydraulics, Fast-Hitch mechanisms, Power Take-Off (PTO) drives, Auburn clutches, Rockford clutches, J-4 magnetos, and Wico magnetos
• Features detailed visual aids including wiring diagrams, carburetor overhaul drawings, hydraulic valve block layouts, transmission gear charts, electrical connection views, and ignition system schematics

Component Walkthrough and Parts Identification

If you spend time turning wrenches on a vintage Cub, relying on incorrect components leads to delays and wrong orders during a repair. This PDF catalog lays out every major assembly for the Farmall and International Cub lines, offering a massive advantage for electrical and mechanical troubleshooting. The document breaks the machine down into seventeen major groups. You get clear looks at the chassis, electrical systems, engine components, transmission internals, and final drive assemblies. Rather than simple lists, the exploded views show exactly how things fit together. They pinpoint the exact fasteners, gaskets, bearings, and shafts required based on your specific tractor serial number. This precision helps you navigate the extensive International Harvester serial number breaks to order the right items beforehand, preventing a dead bay in your workshop.

Workshop Utility and Reassembly Reference

While a parts catalog does not provide written step-by-step procedures, the sequential exploded layouts act as a strict visual step-by-step reassembly guide. This allows mechanics and DIYers to confidently rebuild intricate assemblies like the hydraulic Touch-Control block, the final drive, or the steering gear housing themselves. Seeing the exact installation sequence of thrust washers, seals, and snap rings prevents improper assembly, saving you a costly trip to a specialized agricultural repair shop.

Specification Highlights

Beyond just part numbers, the documentation provides the baseline identification data necessary for accurate component replacement. It details the C-60 gasoline engine displacement at 59.5 cu in (975 cc) operating at a rated 1650 rpm. You will find exact system capacities, like the 9.75-pint cooling system and the 7.5-gallon fuel tank. Need to verify measurements before ordering internals? The manual defines main bearing clearances at 0.002–0.004 inches. It also lists differential and rear axle torque settings at 40 lb-ft for specific load applications. Please remember that while these specs guide accurate component identification, you must always rely on proper shop procedures and OEM safety protocols before applying torque or beginning heavy maintenance.