{"product_id":"nos-genuine-acdelco-gm-1243402-automatic-transmission-extension-housing-oil-seal-oem","title":"NOS Genuine ACDelco GM 1243402 Automatic Transmission Extension Housing Oil Seal OEM","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\" data-end=\"711\" data-start=\"124\"\u003eThe \u003cstrong data-end=\"212\" data-start=\"128\"\u003eNOS Genuine ACDelco GM 1243402 Automatic Transmission Extension Housing Oil Seal\u003c\/strong\u003e is an original equipment replacement designed to prevent transmission fluid leaks at the rear output shaft where the driveshaft slip yoke enters the transmission extension housing. Engineered to General Motors' exact specifications, this OEM seal provides reliable fluid retention, helping maintain proper transmission lubrication and performance. It is also identified as an \u003cstrong data-end=\"638\" data-start=\"589\"\u003eAutomatic Transmission Rear Output Shaft Seal\u003c\/strong\u003e or \u003cstrong data-end=\"672\" data-start=\"642\"\u003eExtension Housing Oil Seal\u003c\/strong\u003e. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\" aria-hidden=\"true\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"1129\" data-start=\"713\"\u003eManufactured from high-quality sealing material, the 1243402 seal is built to withstand transmission fluid, heat, and continuous drivetrain operation. Its precision-molded design ensures a tight, dependable seal while helping protect the transmission from fluid loss and contamination. As a direct OEM replacement, it installs without modification in compatible GM applications. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"1458\" data-start=\"1131\"\u003eThis \u003cstrong data-end=\"1159\" data-start=\"1136\"\u003eNew Old Stock (NOS)\u003c\/strong\u003e Genuine ACDelco part fits a wide range of classic \u003cstrong data-end=\"1253\" data-start=\"1210\"\u003e1955–1977 Chevrolet, Buick, and Pontiac\u003c\/strong\u003e vehicles with compatible automatic transmissions. Always verify compatibility using your vehicle's VIN, transmission model, or original part number before purchasing. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"1482\" data-start=\"1465\" data-section-id=\"14at72t\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-end=\"2125\" data-start=\"1484\"\u003e\n\u003cli data-end=\"1576\" data-start=\"1484\" data-section-id=\"1fqlc65\"\u003e\n\u003cstrong data-end=\"1718\" data-start=\"1689\"\u003ePremium Sealing Material:\u003c\/strong\u003e Resists heat, transmission fluid, and normal wear.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"1980\" data-start=\"1953\"\u003eDirect OEM Replacement:\u003c\/strong\u003e Installs without modification on compatible applications.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"2067\" data-start=\"2043\"\u003eNew Old Stock (NOS):\u003c\/strong\u003e Genuine unused OEM component for restoration or repair.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1858\" data-start=\"1772\" data-section-id=\"ynk87r\"\u003e\n\u003cstrong data-end=\"1796\" data-start=\"1774\"\u003ePrecision OEM Fit:\u003c\/strong\u003e Ensures dependable sealing and factory-quality performance.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"1518\" data-start=\"1486\"\u003eGenuine ACDelco GM OEM Part:\u003c\/strong\u003e Manufactured to original General Motors specifications.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1950\" data-start=\"1859\" data-section-id=\"pt5iwv\"\u003e\n\u003cstrong data-end=\"1887\" data-start=\"1861\"\u003eProtects Transmission:\u003c\/strong\u003e Helps maintain proper fluid levels and reduce contamination.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"1619\" data-start=\"1579\"\u003eTransmission Extension Housing Seal:\u003c\/strong\u003e Helps prevent transmission fluid leaks at the rear output shaft.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"2151\" data-start=\"2132\" data-section-id=\"1qhk4i3\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-end=\"2404\" data-start=\"2153\"\u003e\n\u003cli data-end=\"2197\" data-start=\"2153\" data-section-id=\"18yy5fk\"\u003e\n\u003cstrong data-end=\"2216\" data-start=\"2200\"\u003ePart Number:\u003c\/strong\u003e 1243402\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"2165\" data-start=\"2155\"\u003eBrand:\u003c\/strong\u003e ACDelco \/ General Motors (GM)\u003c\/li\u003e\n\u003cli data-end=\"2404\" data-start=\"2360\" data-section-id=\"1xpa55j\"\u003e\n\u003cstrong data-end=\"2379\" data-start=\"2362\"\u003eFitment Type:\u003c\/strong\u003e Direct OEM Replacement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"2319\" data-start=\"2301\"\u003eSeal Location:\u003c\/strong\u003e Rear Output Shaft \/ Extension Housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"2246\" data-start=\"2229\"\u003eProduct Type:\u003c\/strong\u003e Automatic Transmission Extension Housing Oil Seal\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Motors","offers":[{"title":"Default Title","offer_id":51223502913838,"sku":"EB-174212383366","price":6.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/2417\/4638\/files\/57_1e4eb5c4-2afc-47f6-a955-adf11e378987.jpg?v=1761915475","url":"https:\/\/decoysupply.com\/products\/nos-genuine-acdelco-gm-1243402-automatic-transmission-extension-housing-oil-seal-oem","provider":"Decoy Supply","version":"1.0","type":"link"}