1947–1960 McCormick Farmall Super A, A-1, AV & AV-1 Tractor Parts Catalog (P/N TC-39C)

International Harvester parts catalog TC-39C, Revision No. 4, issued January 1960, covers 1947–1960 McCormick Farmall Super A, A-1, AV, and AV-1 tractors. It identifies replacement parts and assemblies through exploded views, descriptions, quantities, and serial-number applications. This is a parts catalog, not a step-by-step workshop repair manual.

• Engine assemblies: Cylinder heads, valve gear, crankcases, crankshafts, pistons, cylinder sleeves, head gaskets, piston-ring sets, lubrication components, and C-123 water-pump parts.

• Fuel systems: Carter, Marvel-Schebler, and Zenith carburetor breakdowns, with gasoline, distillate, kerosene, and altitude-dependent parts applications.

• Drivetrain: Auburn and Rockford clutch assemblies, gear-shifter mechanisms, transmission shafts and gears, differential components, final drives, and foot brakes.

• Electrical equipment: Battery ignition, International Type H-4 magneto, Delco-Remy generators and starters, lighting equipment, wiring connections, and cable-routing views.

• Hydraulics: Touch-Control cylinder blocks, valves, rockshafts, Pesco and Thompson pumps, remote-control equipment, auxiliary cylinders, and Hydra-Creeper components.

• Chassis and attachments: Steering, fixed and adjustable front axles, wheels, drawbars, PTO and belt-pulley assemblies, plus Fast-Hitch equipment for Super A and A-1.

The catalog is suited to restorers and mechanics who can identify tractor assemblies from parts drawings and need to match replacements to an existing machine.

Parts Identification and Serial Applications

Exploded diagrams connect illustration reference numbers to parts-list entries, required quantities, and applicable serial breaks. The alphabetical unit index locates assemblies by name; the numerical index provides references for known part numbers.

The introduction explains replacement suffixes, partial and complete assemblies, and components supplied only as part of a larger assembly. It also distinguishes ordinary attaching hardware from special-purpose parts that should not be replaced with standard hardware.

Engine and Carburetor Variants

The engine listings distinguish C-113 and C-123 applications, including different cylinder-head gaskets and cooling components. Connecting Rods, Pistons, and Cylinder Sleeves views accompany listings for piston materials, ring arrangements, fuel types, altitude configurations, and replacement sleeve sets.

Cylinder-sleeve packing-ring applications separate serial numbers 250001–310299 from 310300 and up. Matching that break together with the fuel and altitude application helps distinguish replacement assemblies before ordering.

Carburetor sections separate the Carter designs, Marvel-Schebler TSX applications, and Zenith configurations. Their breakdowns identify bodies, jets, floats, throttle components, gaskets, and service-package contents.

Drivetrain, Steering, and Hydraulic Equipment

Gear Shifter Mechanism and Transmission and Final Drive views show shafts, gears, bearings, retainers, and associated hardware. Steering and front-axle listings distinguish the standard and adjustable arrangements from the heavy-duty equipment used on the applicable tractor configurations.

Touch-Control coverage separates cylinder-block assemblies, check and regulator valves, connecting rods, rockshaft components, and pump service packages. Pesco and Thompson pump listings identify different seal and gasket applications.

The Touch-Control head and gasket listings also distinguish cylinder blocks using different screw sizes. Mixing these versions risks damaged threads or an incorrectly sealed hydraulic joint.

Hydra-Creeper coverage includes its transmission, hydraulic motor, hose connections, and clutch/PTO interlock, with equipment requirements for Touch-Control and PTO. Fast-Hitch drawings identify lift links, helper springs, leveling components, and auxiliary drawbar parts for Super A and A-1.

When matching parts for high-pressure hydraulic lines or electrical harnesses, verify compatibility against the tractor and engine serial numbers to avoid equipment failure or operational hazards.

Lighting and Starting Connections

Lighting and Starting (Battery Ignition) and Lighting and Starting (Magneto Ignition) drawings show cable routing and component connections. Generator and Regulator Connections views distinguish production arrangements, while the accompanying lists identify harnesses, terminals, switches, fuse components, and mounting clips.

These are connection and parts-identification references; they do not provide an electrical troubleshooting procedure.

Preview of Hose Dimensions and Bearing Sizes

For the radiator arrangement listed from chassis serial number 356001, the inlet hose measures 2-3/8 inches inside diameter by 2-3/4 inches long. The outlet hose measures 2 inches inside diameter by 3 inches long; both are listed as three-ply hoses.

Crankshaft main-bearing listings include separate 0.030-inch and 0.032-inch undersize options. These are replacement-part sizes, not bearing-clearance or wear-limit specifications.

Reading and Navigating the Printable PDF

Text search and drawing detail: PDF text search and embedded bookmarks are not available. The printed unit and numerical indexes reference the catalog’s original page numbers. Small labels in the lighting and starting connection drawings are readable when enlarged.

Supplied as one printable English-language PDF with 272 pages. This total includes one additional front sheet and 271 catalog pages, including the original covers, revision information, indexes, and memorandum pages.