{"product_id":"porter-cable-5140240-52-air-compressor-piston-kit-genuine-oem-replacement-oil-free-compressor-piston-kit","title":"Porter-Cable 5140240-52 Air Compressor Piston Kit – Genuine OEM Replacement Oil-Free Compressor Piston Kit","description":"\u003cp data-start=\"0\" data-end=\"215\"\u003e\u003cstrong data-start=\"0\" data-end=\"16\"\u003ePart Number:\u003c\/strong\u003e 5140240-52\u003cbr data-start=\"27\" data-end=\"30\"\u003e\u003cstrong data-start=\"30\" data-end=\"43\"\u003eCategory:\u003c\/strong\u003e Air Compressor Parts → Pump Components → Piston Kits\u003cbr data-start=\"96\" data-end=\"99\"\u003e\u003cstrong data-start=\"99\" data-end=\"108\"\u003eType:\u003c\/strong\u003e Porter-Cable 5140240-52 Air Compressor Piston Kit – Genuine OEM Replacement Oil-Free Compressor Piston Kit\u003c\/p\u003e\n\u003chr data-start=\"217\" data-end=\"220\"\u003e\n\u003cp data-start=\"332\" data-end=\"964\"\u003eThe \u003cstrong data-start=\"336\" data-end=\"389\"\u003ePorter-Cable 5140240-52 Air Compressor Piston Kit\u003c\/strong\u003e is a genuine OEM replacement piston assembly designed for compatible \u003cstrong data-start=\"459\" data-end=\"500\"\u003ePorter-Cable oil-free air compressors\u003c\/strong\u003e. This complete piston kit restores compression by replacing worn internal pump components, helping the compressor build and maintain proper air pressure. Manufactured to original equipment specifications, it provides a direct-fit replacement for worn or damaged piston assemblies, improving efficiency and extending the service life of the compressor pump. This part \u003cstrong data-start=\"868\" data-end=\"925\"\u003ereplaces previous part numbers 5140186-75 and E103495\u003c\/strong\u003e.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1159\" data-end=\"1162\"\u003e\n\u003ch2 data-section-id=\"939trr\" data-start=\"1164\" data-end=\"1190\"\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul data-start=\"1192\" data-end=\"1591\"\u003e\n\u003cli data-section-id=\"1tppquy\" data-start=\"1192\" data-end=\"1221\"\u003e\n\u003cstrong data-start=\"1194\" data-end=\"1210\"\u003ePart Number:\u003c\/strong\u003e 5140240-52\u003c\/li\u003e\n\u003cli data-section-id=\"vjgkmv\" data-start=\"1222\" data-end=\"1265\"\u003eGenuine OEM Porter-Cable replacement part\u003c\/li\u003e\n\u003cli data-section-id=\"136305u\" data-start=\"1266\" data-end=\"1316\"\u003eComplete piston kit for oil-free air compressors\u003c\/li\u003e\n\u003cli data-section-id=\"52y54q\" data-start=\"1317\" data-end=\"1363\"\u003eRestores proper compression and air delivery\u003c\/li\u003e\n\u003cli data-section-id=\"cbwf3j\" data-start=\"1364\" data-end=\"1417\"\u003eHelps improve pressure build-up and pump efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"p6iksq\" data-start=\"1418\" data-end=\"1446\"\u003eDirect-fit OEM replacement\u003c\/li\u003e\n\u003cli data-section-id=\"fyhvnz\" data-start=\"1447\" data-end=\"1498\"\u003eManufactured to original equipment specifications\u003c\/li\u003e\n\u003cli data-section-id=\"sfkvrt\" data-start=\"1499\" data-end=\"1591\"\u003eReplaces part numbers \u003cstrong data-start=\"1523\" data-end=\"1537\"\u003e5140186-75\u003c\/strong\u003e and \u003cstrong data-start=\"1542\" data-end=\"1553\"\u003eE103495\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1593\" data-end=\"1596\"\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"1598\" data-end=\"1625\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp data-start=\"1627\" data-end=\"1654\"\u003e\u003cstrong data-start=\"1627\" data-end=\"1643\"\u003ePart Number:\u003c\/strong\u003e 5140240-52\u003c\/p\u003e\n\u003cp data-start=\"1656\" data-end=\"1686\"\u003e\u003cstrong data-start=\"1656\" data-end=\"1673\"\u003eManufacturer:\u003c\/strong\u003e Porter-Cable\u003c\/p\u003e\n\u003cp data-start=\"1688\" data-end=\"1731\"\u003e\u003cstrong data-start=\"1688\" data-end=\"1705\"\u003eProduct Type:\u003c\/strong\u003e Air Compressor Piston Kit\u003c\/p\u003e\n\u003cp data-start=\"1733\" data-end=\"1778\"\u003e\u003cstrong data-start=\"1733\" data-end=\"1749\"\u003eApplication:\u003c\/strong\u003e Oil-Free Air Compressor Pump\u003c\/p\u003e\n\u003cp data-start=\"1780\" data-end=\"1797\"\u003e\u003cstrong data-start=\"1780\" data-end=\"1793\"\u003eOEM Part:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003cp data-start=\"1799\" data-end=\"1830\"\u003e\u003cstrong data-start=\"1799\" data-end=\"1812\"\u003eQuantity:\u003c\/strong\u003e Sold Individually\u003c\/p\u003e\n\u003cp data-start=\"1832\" data-end=\"1903\"\u003e\u003cstrong data-start=\"1832\" data-end=\"1845\"\u003eReplaces:\u003c\/strong\u003e 5140186-75, E103495 \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1905\" data-end=\"1908\"\u003e\n\u003ch2 data-section-id=\"17z2fqi\" data-start=\"1910\" data-end=\"1936\"\u003eCompatible Applications\u003c\/h2\u003e\n\u003cp data-start=\"1938\" data-end=\"2033\"\u003eThe \u003cstrong data-start=\"1942\" data-end=\"1980\"\u003ePorter-Cable 5140240-52 Piston Kit\u003c\/strong\u003e fits compatible oil-free air compressors, including:\u003c\/p\u003e\n\u003ch3 data-section-id=\"1u59pd8\" data-start=\"2035\" data-end=\"2051\"\u003ePorter-Cable\u003c\/h3\u003e\n\u003cul data-start=\"2053\" data-end=\"2158\"\u003e\n\u003cli data-section-id=\"lnxu28\" data-start=\"2053\" data-end=\"2105\"\u003e\n\u003cstrong data-start=\"2055\" data-end=\"2069\"\u003ePXCMF220VW\u003c\/strong\u003e – 20-Gallon Oil-Free Air Compressor\u003c\/li\u003e\n\u003cli data-section-id=\"v8k19y\" data-start=\"2106\" data-end=\"2158\"\u003e\n\u003cstrong data-start=\"2108\" data-end=\"2122\"\u003ePXCMF226VW\u003c\/strong\u003e – 20-Gallon Oil-Free Air Compressor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2160\" data-end=\"2293\"\u003eIt also fits select \u003cstrong data-start=\"2180\" data-end=\"2193\"\u003eCraftsman\u003c\/strong\u003e and \u003cstrong data-start=\"2198\" data-end=\"2207\"\u003eHusky\u003c\/strong\u003e oil-free air compressors that utilize the same OEM piston assembly, including models:\u003c\/p\u003e\n\u003cul data-start=\"2295\" data-end=\"2375\"\u003e\n\u003cli data-section-id=\"1i4mzd4\" data-start=\"2295\" data-end=\"2321\"\u003eCraftsman \u003cstrong data-start=\"2307\" data-end=\"2321\"\u003e921.166420\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1azs1dv\" data-start=\"2322\" data-end=\"2348\"\u003eCraftsman \u003cstrong data-start=\"2334\" data-end=\"2348\"\u003e921.169130\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1azub1g\" data-start=\"2349\" data-end=\"2375\"\u003eCraftsman \u003cstrong data-start=\"2361\" data-end=\"2375\"\u003e921.169140\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2377\" data-end=\"2537\"\u003eAlways verify your compressor model, type number, and original part number before ordering to ensure proper compatibility. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"2539\" data-end=\"2542\"\u003e\n\u003ch2 data-section-id=\"1onu1ha\" data-start=\"2544\" data-end=\"2573\"\u003eFunction of the Piston Kit\u003c\/h2\u003e\n\u003cp data-start=\"2575\" data-end=\"2620\"\u003eThe \u003cstrong data-start=\"2579\" data-end=\"2604\"\u003e5140240-52 Piston Kit\u003c\/strong\u003e is designed to:\u003c\/p\u003e\n\u003cul data-start=\"2622\" data-end=\"2869\"\u003e\n\u003cli data-section-id=\"owi32q\" data-start=\"2622\" data-end=\"2661\"\u003eCompress air within the pump cylinder\u003c\/li\u003e\n\u003cli data-section-id=\"7vu2dl\" data-start=\"2662\" data-end=\"2698\"\u003eRestore proper pressure generation\u003c\/li\u003e\n\u003cli data-section-id=\"1vw45pi\" data-start=\"2699\" data-end=\"2740\"\u003eMaintain efficient compressor operation\u003c\/li\u003e\n\u003cli data-section-id=\"tpiajr\" data-start=\"2741\" data-end=\"2776\"\u003eImprove airflow and recovery time\u003c\/li\u003e\n\u003cli data-section-id=\"1vhpiqu\" data-start=\"2777\" data-end=\"2825\"\u003eReplace worn piston and compression components\u003c\/li\u003e\n\u003cli data-section-id=\"1qvkdcd\" data-start=\"2826\" data-end=\"2869\"\u003eRestore original factory pump performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2871\" data-end=\"3043\"\u003eUsing a genuine OEM replacement piston kit helps maintain dependable compressor performance and extends the life of the pump assembly. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"3045\" data-end=\"3048\"\u003e\n\u003ch2 data-section-id=\"1cnbljb\" data-start=\"3050\" data-end=\"3087\"\u003eCommon Signs Replacement Is Needed\u003c\/h2\u003e\n\u003cp data-start=\"3089\" data-end=\"3126\"\u003eReplace the piston kit if you notice:\u003c\/p\u003e\n\u003cul data-start=\"3128\" data-end=\"3406\"\u003e\n\u003cli data-section-id=\"1n9vfju\" data-start=\"3128\" data-end=\"3178\"\u003eCompressor runs but builds little or no pressure\u003c\/li\u003e\n\u003cli data-section-id=\"sqp52k\" data-start=\"3179\" data-end=\"3215\"\u003eLonger-than-normal tank fill times\u003c\/li\u003e\n\u003cli data-section-id=\"pa08ys\" data-start=\"3216\" data-end=\"3254\"\u003eExcessive air bypass inside the pump\u003c\/li\u003e\n\u003cli data-section-id=\"1cfk0hy\" data-start=\"3255\" data-end=\"3293\"\u003eReduced airflow from connected tools\u003c\/li\u003e\n\u003cli data-section-id=\"1mvxpo6\" data-start=\"3294\" data-end=\"3353\"\u003eWorn or damaged piston components found during inspection\u003c\/li\u003e\n\u003cli data-section-id=\"10ed08y\" data-start=\"3354\" data-end=\"3406\"\u003eLoss of compression due to piston or cylinder wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3408\" data-end=\"3580\"\u003eA worn piston assembly can significantly reduce compressor efficiency and prevent the unit from reaching its rated operating pressure. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"3582\" data-end=\"3585\"\u003e\n\u003ch2 data-section-id=\"10va281\" data-start=\"3587\" data-end=\"3618\"\u003eInstallation \u0026amp; Service Notes\u003c\/h2\u003e\n\u003cp data-start=\"3620\" data-end=\"3737\"\u003eDisconnect the compressor from electrical power and completely drain all air pressure from the tank before servicing.\u003c\/p\u003e\n\u003cp data-start=\"3739\" data-end=\"4468\"\u003eRemove the compressor shroud, cylinder head, and valve plate to access the pump assembly. Carefully remove the worn piston assembly from the connecting rod and cylinder. Inspect the cylinder sleeve, valve plate, reed valves, gaskets, and crankshaft bearing surfaces for wear or damage before installing the new \u003cstrong data-start=\"4050\" data-end=\"4075\"\u003e5140240-52 Piston Kit\u003c\/strong\u003e. Reassemble the pump using new seals and gaskets where required, ensuring all fasteners are tightened evenly to the manufacturer's specifications. After reassembly, test the compressor for proper pressure build-up and check for air leaks before returning it to service. Proper orientation of the valve plate is essential for correct compressor operation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"4470\" data-end=\"4740\"\u003e\u003cstrong data-start=\"4470\" data-end=\"4484\"\u003eImportant:\u003c\/strong\u003e Always verify your compressor model and original part number before ordering. If the cylinder sleeve, valve plate, or reed valves show excessive wear, inspect and replace those components as needed during the rebuild. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"4742\" data-end=\"4745\"\u003e\n\u003ch2 data-section-id=\"8fimbm\" data-start=\"4747\" data-end=\"4777\"\u003eMaintenance Recommendations\u003c\/h2\u003e\n\u003cul data-start=\"4779\" data-end=\"5218\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"13yhjet\" data-start=\"4779\" data-end=\"4834\"\u003eKeep the air intake filter clean to reduce pump wear.\u003c\/li\u003e\n\u003cli data-section-id=\"dpw9p4\" data-start=\"4835\" data-end=\"4889\"\u003eDrain condensation from the air tank after each use.\u003c\/li\u003e\n\u003cli data-section-id=\"1d4guw9\" data-start=\"4890\" data-end=\"4953\"\u003ePeriodically inspect the pump for unusual noise or vibration.\u003c\/li\u003e\n\u003cli data-section-id=\"m6lm1z\" data-start=\"4954\" data-end=\"5018\"\u003eReplace worn valve plates and seals during major pump service.\u003c\/li\u003e\n\u003cli data-section-id=\"1d9g080\" data-start=\"5019\" data-end=\"5086\"\u003eAvoid operating the compressor beyond its recommended duty cycle.\u003c\/li\u003e\n\u003cli data-section-id=\"1nqsl0i\" data-start=\"5087\" data-end=\"5218\" data-is-last-node=\"\"\u003eUse genuine OEM replacement parts to maintain factory fit, proper compression, and long-term oil-free air compressor performance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Porter Cable","offers":[{"title":"Default Title","offer_id":53577179103595,"sku":"5140240-52","price":56.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/5140240-52.jpg?v=1784571321","url":"https:\/\/generalsprayers.com\/products\/porter-cable-5140240-52-air-compressor-piston-kit-genuine-oem-replacement-oil-free-compressor-piston-kit","provider":"GeneralSprayers","version":"1.0","type":"link"}