The Eaton Fuller Transmission Breather, part number 4302857, is a genuine OEM breather designed for Eaton Fuller transmissions. It threads in with a 3/8-18 NPTF connection, making installation straightforward on any application that uses this standard pipe thread size. If you need to confirm this is the correct breather for your transmission, call Pro Gear and Transmission and we can help you identify the right fit.Interchanges:4302857-SP5311661FUL4302857ZBF4302857Mack 3088-4302857FeaturesGenuine Eaton Fuller OEM transmission breather3/8-18 NPTF threaded connectionSold individually (each)Direct replacement for Eaton Fuller transmission applicationsTech SpecsThread Size: 3/8-18 NPTFUnit of Measure: EachUsed in 39 Eaton Fuller modelsShow all 39 modelsFR-11210BFR-12210BFR-13210BFR-14210BFR-15210BFR-9210BFRF-11210BFRF-12210BFRF-13210BFRF-14210BFRF-15210BFRF-9210BFRO-11210BFRO-11210CFRO-12210BFRO-12210CFRO-13210BFRO-13210CFRO-14210BFRO-14210CFRO-15210BFRO-15210CFRO-16210BFRO-16210CFRO-17210CFRO-18210CFROF-11210BFROF-11210CFROF-12210BFROF-12210CFROF-13210BFROF-13210CFROF-14210BFROF-14210CFROF-15210BFROF-15210CFROF-16210BFROF-16210CRTO-16210C