MD To Sn: 8246
1/8" NPT male thread
420B (Crawler)
Unless you can reuse your old adapter fitting for the oil line to the gauge
Make sure that your carburetor manufacturer number is listed below
Economy Carburetor Repair Kit Cockshutt E3 E4 E5 30 40 50 Tractors Zenith MD To Sn: 8246Economy Zenith Carburetor Repair Kit Fits: Cockshutt E3, E4, E5, 30, 40, 50 Tractors(All w carb 10381, 10487, 10633, 10890, 10946, 10946A, 11443, 11443A, 11447,A,F, 11470,A,C, 11489,A, 11509, 11918,A, B, 12038, 12504, 12574) Specifications Needle & Seat #31 646 (3 8 thread) Float lever pin Seal Gaskets Instructions INCLUDES PARTS SHOWN IN PICTURE, INSTRUCTION SHEET & DIAGRAM WILL SHOW PARTS THAT ARE NOT INCLUDED IN THIS KIT FOR REASSEMBLY PURPOSES