{"product_id":"dewalt-5140186-73-check-valve-genuine-oem-replacement-air-compressor-check-valve","title":"DeWalt 5140186-73 Check Valve – Genuine OEM Replacement Air Compressor Check Valve","description":"\u003cp data-start=\"0\" data-end=\"212\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong data-start=\"0\" data-end=\"16\"\u003ePart Number:\u003c\/strong\u003e 5140186-73\u003cbr data-start=\"27\" data-end=\"30\"\u003e\u003cstrong data-start=\"30\" data-end=\"43\"\u003eCategory:\u003c\/strong\u003e Air Compressor Parts \u0026amp; Accessories → Compressor Pump Parts → Check Valves\u003cbr data-start=\"117\" data-end=\"120\"\u003e\u003cstrong data-start=\"120\" data-end=\"129\"\u003eType:\u003c\/strong\u003e DeWalt 5140186-73 Check Valve – Genuine OEM Replacement Air Compressor Check Valve\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"214\" data-end=\"217\"\u003e\n\u003cp data-start=\"305\" data-end=\"872\"\u003eThe \u003cstrong data-start=\"309\" data-end=\"342\"\u003eDeWalt 5140186-73 Check Valve\u003c\/strong\u003e is a genuine OEM replacement check valve designed for compatible Porter-Cable air compressors. Installed between the compressor pump and air tank, this one-way valve allows compressed air to flow into the tank while preventing it from flowing back into the pump after the compressor shuts off. Manufactured to original equipment specifications, it provides a direct-fit replacement for worn, leaking, or damaged check valves, helping restore proper pressure retention, reliable compressor cycling, and efficient pump performance.\u003c\/p\u003e\n\u003chr data-start=\"1058\" data-end=\"1061\"\u003e\n\u003ch2 data-section-id=\"939trr\" data-start=\"1063\" data-end=\"1089\"\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul data-start=\"1091\" data-end=\"1496\"\u003e\n\u003cli data-section-id=\"1x56f4g\" data-start=\"1091\" data-end=\"1120\"\u003e\n\u003cstrong data-start=\"1093\" data-end=\"1109\"\u003ePart Number:\u003c\/strong\u003e 5140186-73\u003c\/li\u003e\n\u003cli data-section-id=\"1platsi\" data-start=\"1121\" data-end=\"1158\"\u003eGenuine OEM DeWalt replacement part\u003c\/li\u003e\n\u003cli data-section-id=\"jvg7fd\" data-start=\"1159\" data-end=\"1199\"\u003eReplacement air compressor check valve\u003c\/li\u003e\n\u003cli data-section-id=\"1nmmsgb\" data-start=\"1200\" data-end=\"1271\"\u003eAllows compressed air to flow into the tank while preventing backflow\u003c\/li\u003e\n\u003cli data-section-id=\"v7w6sm\" data-start=\"1272\" data-end=\"1333\"\u003eHelps maintain tank pressure after the compressor shuts off\u003c\/li\u003e\n\u003cli data-section-id=\"o7op49\" data-start=\"1334\" data-end=\"1376\"\u003eSupports proper unloader valve operation\u003c\/li\u003e\n\u003cli data-section-id=\"gkkxju\" data-start=\"1377\" data-end=\"1415\"\u003ePrecision-manufactured OEM component\u003c\/li\u003e\n\u003cli data-section-id=\"p6iksq\" data-start=\"1416\" data-end=\"1444\"\u003eDirect-fit OEM replacement\u003c\/li\u003e\n\u003cli data-section-id=\"fyhvnz\" data-start=\"1445\" data-end=\"1496\"\u003eManufactured to original equipment specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1498\" data-end=\"1501\"\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"1503\" data-end=\"1530\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp data-start=\"1532\" data-end=\"1559\"\u003e\u003cstrong data-start=\"1532\" data-end=\"1548\"\u003ePart Number:\u003c\/strong\u003e 5140186-73\u003c\/p\u003e\n\u003cp data-start=\"1561\" data-end=\"1585\"\u003e\u003cstrong data-start=\"1561\" data-end=\"1578\"\u003eManufacturer:\u003c\/strong\u003e DeWalt\u003c\/p\u003e\n\u003cp data-start=\"1587\" data-end=\"1616\"\u003e\u003cstrong data-start=\"1587\" data-end=\"1604\"\u003eProduct Type:\u003c\/strong\u003e Check Valve\u003c\/p\u003e\n\u003cp data-start=\"1618\" data-end=\"1635\"\u003e\u003cstrong data-start=\"1618\" data-end=\"1631\"\u003eOEM Part:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003cp data-start=\"1637\" data-end=\"1689\"\u003e\u003cstrong data-start=\"1637\" data-end=\"1653\"\u003eApplication:\u003c\/strong\u003e Air Compressor Pump \u0026amp; Tank Assembly\u003c\/p\u003e\n\u003chr data-start=\"1691\" data-end=\"1694\"\u003e\n\u003ch2 data-section-id=\"17z2fqi\" data-start=\"1696\" data-end=\"1722\"\u003eCompatible Applications\u003c\/h2\u003e\n\u003cp data-start=\"1724\" data-end=\"1774\"\u003eThe \u003cstrong data-start=\"1728\" data-end=\"1761\"\u003eDeWalt 5140186-73 Check Valve\u003c\/strong\u003e fits select:\u003c\/p\u003e\n\u003ch3 data-section-id=\"1u59pd8\" data-start=\"1776\" data-end=\"1792\"\u003ePorter-Cable\u003c\/h3\u003e\n\u003cul data-start=\"1794\" data-end=\"1943\"\u003e\n\u003cli data-section-id=\"11vj6bq\" data-start=\"1794\" data-end=\"1868\"\u003e\n\u003cstrong data-start=\"1796\" data-end=\"1810\"\u003ePXCMF220VW\u003c\/strong\u003e 1.5 HP 150 PSI 20-Gallon Portable Air Compressor (Type 0)\u003c\/li\u003e\n\u003cli data-section-id=\"3q4mcj\" data-start=\"1869\" data-end=\"1943\"\u003e\n\u003cstrong data-start=\"1871\" data-end=\"1885\"\u003ePXCMF226VW\u003c\/strong\u003e 1.5 HP 155 PSI 26-Gallon Portable Air Compressor (Type 0)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1945\" data-end=\"2067\"\u003eAlways verify your compressor model, type number, and original part number before ordering to ensure proper compatibility.\u003c\/p\u003e\n\u003chr data-start=\"2069\" data-end=\"2072\"\u003e\n\u003ch2 data-section-id=\"gno109\" data-start=\"2074\" data-end=\"2104\"\u003eFunction of the Check Valve\u003c\/h2\u003e\n\u003cp data-start=\"2106\" data-end=\"2212\"\u003eThe \u003cstrong data-start=\"2110\" data-end=\"2143\"\u003eDeWalt 5140186-73 Check Valve\u003c\/strong\u003e serves as a one-way valve within the compressor system. It helps to:\u003c\/p\u003e\n\u003cul data-start=\"2214\" data-end=\"2505\"\u003e\n\u003cli data-section-id=\"24qm98\" data-start=\"2214\" data-end=\"2258\"\u003eAllow compressed air to enter the air tank\u003c\/li\u003e\n\u003cli data-section-id=\"1yemgr9\" data-start=\"2259\" data-end=\"2315\"\u003ePrevent air from flowing back into the compressor pump\u003c\/li\u003e\n\u003cli data-section-id=\"1mzfglv\" data-start=\"2316\" data-end=\"2362\"\u003eMaintain stored tank pressure after shutdown\u003c\/li\u003e\n\u003cli data-section-id=\"v5jrq9\" data-start=\"2363\" data-end=\"2398\"\u003eSupport proper compressor restart\u003c\/li\u003e\n\u003cli data-section-id=\"1v9svqp\" data-start=\"2399\" data-end=\"2438\"\u003eImprove overall compressor efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"1aa216u\" data-start=\"2439\" data-end=\"2505\"\u003eRestore the compressor's original pressure retention performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2507\" data-end=\"2633\"\u003eUsing a genuine OEM replacement check valve helps ensure proper fit, dependable sealing, and long-term compressor reliability.\u003c\/p\u003e\n\u003chr data-start=\"2635\" data-end=\"2638\"\u003e\n\u003ch2 data-section-id=\"1cnbljb\" data-start=\"2640\" data-end=\"2677\"\u003eCommon Signs Replacement Is Needed\u003c\/h2\u003e\n\u003cp data-start=\"2679\" data-end=\"2717\"\u003eReplace the check valve if you notice:\u003c\/p\u003e\n\u003cul data-start=\"2719\" data-end=\"2971\"\u003e\n\u003cli data-section-id=\"w5mzjk\" data-start=\"2719\" data-end=\"2771\"\u003eAir leaking from the unloader valve after shutdown\u003c\/li\u003e\n\u003cli data-section-id=\"t0taaw\" data-start=\"2772\" data-end=\"2820\"\u003eCompressor struggles to restart under pressure\u003c\/li\u003e\n\u003cli data-section-id=\"1ghjffk\" data-start=\"2821\" data-end=\"2855\"\u003eAir leaking back toward the pump\u003c\/li\u003e\n\u003cli data-section-id=\"25ghxw\" data-start=\"2856\" data-end=\"2906\"\u003eLoss of tank pressure when the compressor is off\u003c\/li\u003e\n\u003cli data-section-id=\"19oxb6c\" data-start=\"2907\" data-end=\"2934\"\u003eDamaged or corroded valve\u003c\/li\u003e\n\u003cli data-section-id=\"1yaqios\" data-start=\"2935\" data-end=\"2971\"\u003eInternal valve sticking or failure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2973\" data-end=\"3119\"\u003eA worn or damaged check valve can reduce compressor efficiency, cause hard starting, and prevent the system from maintaining proper tank pressure.\u003c\/p\u003e\n\u003chr data-start=\"3121\" data-end=\"3124\"\u003e\n\u003ch2 data-section-id=\"10va281\" data-start=\"3126\" data-end=\"3157\"\u003eInstallation \u0026amp; Service Notes\u003c\/h2\u003e\n\u003cp data-start=\"3159\" data-end=\"3289\"\u003eDisconnect the compressor from the power source and completely drain all air pressure from the tank before performing any repairs.\u003c\/p\u003e\n\u003cp data-start=\"3291\" data-end=\"3759\"\u003eRemove the discharge tube and existing \u003cstrong data-start=\"3330\" data-end=\"3356\"\u003e5140186-73 Check Valve\u003c\/strong\u003e according to the manufacturer's service instructions. Inspect the discharge tube, tank port, fittings, and unloader line for wear or damage before installing the replacement valve. Apply an appropriate thread sealant if specified by the manufacturer, tighten the valve securely, reconnect all tubing, and verify that the compressor builds pressure properly without leaks before returning it to service.\u003c\/p\u003e\n\u003cp data-start=\"3761\" data-end=\"4010\"\u003e\u003cstrong data-start=\"3761\" data-end=\"3775\"\u003eImportant:\u003c\/strong\u003e Always verify your compressor model, type number, and original part number before ordering. Use genuine OEM DeWalt replacement components to ensure proper sealing, reliable pressure retention, and long-term air compressor performance.\u003c\/p\u003e\n\u003chr data-start=\"4012\" data-end=\"4015\"\u003e\n\u003ch2 data-section-id=\"8fimbm\" data-start=\"4017\" data-end=\"4047\"\u003eMaintenance Recommendations\u003c\/h2\u003e\n\u003cul data-start=\"4049\" data-end=\"4467\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1g8ksya\" data-start=\"4049\" data-end=\"4094\"\u003eDrain moisture from the air tank regularly.\u003c\/li\u003e\n\u003cli data-section-id=\"1rxd4s1\" data-start=\"4095\" data-end=\"4149\"\u003eInspect fittings and discharge tubing for air leaks.\u003c\/li\u003e\n\u003cli data-section-id=\"1olhchx\" data-start=\"4150\" data-end=\"4213\"\u003eCheck the check valve whenever servicing the compressor pump.\u003c\/li\u003e\n\u003cli data-section-id=\"a2hz31\" data-start=\"4214\" data-end=\"4259\"\u003eReplace damaged fittings or seals promptly.\u003c\/li\u003e\n\u003cli data-section-id=\"o4tter\" data-start=\"4260\" data-end=\"4320\"\u003eKeep the compressor operating within its rated duty cycle.\u003c\/li\u003e\n\u003cli data-section-id=\"l533b5\" data-start=\"4321\" data-end=\"4467\" data-is-last-node=\"\"\u003eUse genuine OEM replacement parts to maintain factory pressure retention, reliable compressor cycling, and long-term air compressor reliability.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DeWalt","offers":[{"title":"Default Title","offer_id":53560503730539,"sku":"5140186-73","price":46.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/5140186-73.jpg?v=1784238860","url":"https:\/\/generalsprayers.com\/products\/dewalt-5140186-73-check-valve-genuine-oem-replacement-air-compressor-check-valve","provider":"GeneralSprayers","version":"1.0","type":"link"}