One New Carburetor Fits Case IH, Fits FARMALL, Fits International Harvester. One New Aftermarket Replacement Zenith. Fits Case Fits IH Fits FARMALL Fits Cub Tractor. 154, 184, 185 With Engine Serial Number 312390 and up13781, 13794. Fits Cub, Fits Cub 154 LO-BOY, Fits Cub 184 LO-BOY, Fits Cub LO-BOY. Fits The Listed Zenith Style Carb Only. Replaces Part Number(s). The throttle bore measures 1-1/64. The carb mounting studs measure 1-13/16 center to center. The choke air horn (air inlet) measures 1-5/8 OD. The fuel inlet measures 1/8 NPT. The carb mounting flange gasket is included. NOTE: On Older Fits Cub Tractors, you may need to use 2 carb gaskets to clear the butterfly. Reliable Aftermarket Parts, your trusted source for a wide range of replacement parts catering to various outdoor equipment. We specialize in providing top-quality replacement parts for Lawn and Garden, Snow Removal, UTV, ATV, and Golf Cart machinery. Our extensive inventory includes replacement parts for Backhoes, Crawlers, Excavators, Tractors, Skid Steers, and more, covering most leading brands and models in the industry. If you have any inquiries or require assistance, please don’t hesitate to reach out. PLEASE SAVE ALL ORIGINAL PACKAGING. ! If you receive an item that is not as described in the listing. Normally same day if before 1PM EST. This offer is now available to all 50 States. Our team is happy to help! How do I know if my order was submitted properly? PLEASE SAVE ALL ORIGINAL PACKAGING. If you have any questions, please reach out to us before ordering. This program is designed to get the parts you need fast, so you can keep your equipment running without unnecessary delays. Not all items are eligible, but most of our high-demand replacement parts and essential components qualify. Brands Fit: John Deere, Allis Chalmers, Ford/New Holland, Case, Massey Ferguson & More! Parts For: Allis Chalmers, International Harvester, Caterpillar, Komatsu & More. Brands Fit: Bad Boy, Briggs & Stratton, Cub Cadet, Honda, Sears, Snapper & More! Parts For: Ariens, Briggs & Stratton, Jacobsen, Toro, Troy Built, Sears & More! Can’t track down a part that you need? Need help with a part you found? Contact our expertly trained customer service staff.