{"product_id":"brass-hex-head-plug-1-4in-male-npt-port-eaton-3152x4-parker-218p4-177-9121b","title":"Brass Hex Head Plug - 1\/4in Male NPT Port - Eaton 3152X4 Parker 218P4 177.9121B","description":"\u003cp\u003eCap an open air port the right way with this \u003cstrong\u003ebrass hex head plug\u003c\/strong\u003e distributed by FleetPro Parts \u0026amp; Tires. It threads into a \u003cstrong\u003e1\/4in male NPT\u003c\/strong\u003e connection and closes it off for good - the standard fix for an unused manifold port, a spare tee leg, or a valve boss left open after a component came off the truck. A port that is open, cracked or stuffed with the wrong plug is a slow leak, and a slow leak means the compressor cycles all day, the tanks bleed down overnight and the driver spends the first minutes of the shift waiting on air pressure. Supplied under the Automann brand at Fleet Standard grade, we stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets, diesel repair shops, and owner-operators nationwide.\u003c\/p\u003e\n\n\u003ch2\u003eA Port That Stays Sealed: The Brass Hex Plug Advantage\u003c\/h2\u003e\n\n\u003cp\u003eThis is \u003cstrong\u003estandard NPT pipe connection hardware\u003c\/strong\u003e for truck and trailer air-brake and air-accessory plumbing, not a hardware-store improvisation. The \u003cstrong\u003e1\/4in male NPT\u003c\/strong\u003e thread is tapered, so it draws tighter the deeper it is torqued and seals on the thread flanks themselves - pipe sealant on assembly is normal practice and keeps the joint dry through heat cycles, vibration and winter salt.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003ebrass\u003c\/strong\u003e body is what makes it a keeper. Brass shrugs off the moisture, road salt and compressor oil that live inside a heavy-duty air system, and unlike a plated steel plug it will not rust or gall itself into a cast valve body - which matters on the day somebody needs that port back for a gauge, a sensor or an added circuit. The \u003cstrong\u003ehex head\u003c\/strong\u003e takes an ordinary wrench or socket, so the plug seats tight on install and backs out cleanly years later instead of rounding off.\u003c\/p\u003e\n\n\u003cp\u003eAt FleetPro Parts \u0026amp; Tires, we know an air system is only as tight as its smallest fitting. This Automann plug is a direct replacement for highly searched industry numbers including \u003cstrong\u003eEaton 3152X4\u003c\/strong\u003e, \u003cstrong\u003eParker 218P4\u003c\/strong\u003e, Meritor 1250H1308, and Watson and Chalin 17428 and 17628.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eVehicle Fitment \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis universal-application brass fitting is intended for the following commercial use:\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMake\/Model:\u003c\/strong\u003e Universal - trucks, tractors and trailers\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e NPT air-brake and air-line connections\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4in male NPT\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eComponent Group:\u003c\/strong\u003e Air Brake \u0026amp; Wheel \/ Air System Manifolds \u0026amp; Valves\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eDirect Replacement \u0026amp; Cross-Reference Numbers:\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eThis Automann brass plug serves as a direct replacement for the following part numbers:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEaton Interchange:\u003c\/strong\u003e 3152X4\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMeritor Interchange:\u003c\/strong\u003e 1250H1308\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eParker Interchange:\u003c\/strong\u003e 218P4\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWatson and Chalin Interchange:\u003c\/strong\u003e 17428, 17628\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAdditional Interchange:\u003c\/strong\u003e 121B, 017053, SPPH4\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAutomann Distributor #:\u003c\/strong\u003e 177.9121B\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Brass Hex Head Plug\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/4in Male NPT\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e Brass\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Universal - air-brake and air-accessory plumbing\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 889626447174\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProduct Level:\u003c\/strong\u003e Fleet Standard Aftermarket\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Automann (Distributed by FleetPro Parts \u0026amp; Tires)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Automann","offers":[{"title":"Default Title","offer_id":43024024797255,"sku":"177.9121B","price":0.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/8035\/2583\/files\/image_1920_0f672049-3369-47fa-accc-c58af9c42c61.jpg?v=1785427550","url":"https:\/\/fleetpropt.com\/products\/brass-hex-head-plug-1-4in-male-npt-port-eaton-3152x4-parker-218p4-177-9121b","provider":"FLEETPRO PARTS \u0026 TIRES ","version":"1.0","type":"link"}