This carb fits International Harvester IH, Farmall H, HV, I4, O4, OS4, W4 Tractors

Iy is a NEW carburetor, not rebuilt. 

Mounting studs are 2-3/8"" center to center. The throttle body throat size is 1-3/16"" diameter. 

The choke air horn (air inlet) measures 1-3/4"" OD. 

For Farmall H and W4 series Tractors and is made just like the original; all the original parts interchange.

This New Farmall Carburetor will fit like a glove to replace 50981DA, 50981DB, 50981DC or 50981DD.

Carburetor Numbers 45108DB, 45108DC, 45108DD, 45108DE, 50981D, 50981DD, 6212DB (casting #), 6213DB (casting #)

Replacement Numbers 50981DA, 50981DB, 50981DC, 50981DD

Verify the proper fit for your application with a parts catalog or other reference documents.