Add to Favorite Sellers. Farmall H Carburetor Fits International Tractor H I4 O4 W4 IHC 50981DA NEW. Quality Aftermarket: Farmall H Carburetor Fits: 50981DA, 50981DB, 50981DC, 50981DD International Tractor H, HV, I4, O4, OS4, W4 Specifications This 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. The carburetor mounting gasket is included. JJIH3383 fits 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. Is found in the carburetor or if it has been taken apart. Replacement Numbers 50981DA, 50981DB, 50981DC, 50981DD. We recommend verifying the proper fit for your application with a parts catalog or other reference documents. All aftermarket items have been hand selected by our team and are continuously monitored by a quality control department. Should a craftsmanship or fitment concern be identified, JJAgParts will be sure to work with our customers to stand behind our products. Be sure to check out our other listings for great aftermarket and NOS items! Don’t forget to leave us feedback and we will be sure to do the same! . Thank you for this opportunity to earn your business! Thank you for looking! We appreciate the opportunity to earn your business. Feel free to ask any questions you may have.