{"product_id":"mercury-mercruiser-double-yoke-u-joint-393831","title":"Mercury MerCruiser Double Yoke U-Joint 393831","description":"\u003cp data-start=\"75\" data-end=\"448\"\u003eMercury MerCruiser 393831 is a genuine OEM double yoke driveline component used in MerCruiser sterndrive applications. It is commonly identified in current OEM parts sources as the double yoke or center socket in the U-joint driveline assembly, used between the drive shaft U-joints in the upper drive connection. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"450\" data-end=\"464\"\u003eKey Features\u003c\/p\u003e\n\u003cul data-start=\"465\" data-end=\"724\"\u003e\n\u003cli data-start=\"465\" data-end=\"516\"\u003eGenuine Mercury MerCruiser Quicksilver OEM part\u003c\/li\u003e\n\u003cli data-start=\"517\" data-end=\"574\"\u003eDouble yoke \/ center socket style driveline component\u003c\/li\u003e\n\u003cli data-start=\"575\" data-end=\"611\"\u003eUsed in U-joint drive assemblies\u003c\/li\u003e\n\u003cli data-start=\"612\" data-end=\"646\"\u003eCommon OEM part number: 393831\u003c\/li\u003e\n\u003cli data-start=\"647\" data-end=\"724\"\u003eGTIN commonly listed as 745061141179. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"726\" data-end=\"1279\"\u003eEngine Compatibility\u003cbr data-start=\"746\" data-end=\"749\"\u003eCurrent OEM listings show 393831 used on MerCruiser R\/MR\/Alpha One sterndrive and transom assembly applications from 1983–1990 within the listed serial ranges, and also on Bravo, Bravo Two, and Bravo Three applications in the listed serial ranges. Aftermarket cross-reference sources also describe it as fitting MerCruiser #1 and Alpha units above serial number 1684188, plus TR, TRS, and Bravo applications. Fitment should still be confirmed by drive model and serial number before ordering. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1281\" data-end=\"1571\"\u003eSerial Number Fitment Notice\u003cbr data-start=\"1309\" data-end=\"1312\"\u003eFitment should be confirmed by sterndrive model and serial number, not by engine family alone. This part is a driveline match item, and correct application depends on the specific drive and U-joint assembly configuration. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1573\" data-end=\"1884\"\u003eWhen This Part Needs Replacement\u003cbr data-start=\"1605\" data-end=\"1608\"\u003eReplace when the original double yoke shows bore wear, brinelling, rust damage, looseness at the U-joint bearing caps, driveline play, or damage during U-joint service. Because this is a structural driveline component, any visible wear or distortion is reason for replacement.\u003c\/p\u003e\n\u003cp data-start=\"1886\" data-end=\"2236\"\u003eInstallation Notes\u003cbr data-start=\"1904\" data-end=\"1907\"\u003eInstall only on the correct MerCruiser driveline application. One established MerCruiser parts source notes this version uses 1.079 bore holes for the matching U-joints and that some newer drives after about 2000 use a larger center socket, so size confirmation is important before ordering. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2238\" data-end=\"2400\"\u003eAlternate \/ Superseded Part Numbers\u003cbr data-start=\"2273\" data-end=\"2276\"\u003e393831\u003cbr data-start=\"2282\" data-end=\"2285\"\u003e39383T\u003cbr data-start=\"2291\" data-end=\"2294\"\u003eSierra 18-2128\u003cbr data-start=\"2308\" data-end=\"2311\"\u003eOMC 912213\u003cbr data-start=\"2321\" data-end=\"2324\"\u003eVolvo Penta 3850813\u003cbr data-start=\"2343\" data-end=\"2346\"\u003eMallory 9-72403. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2402\" data-end=\"2749\"\u003eParts Desk Insight\u003cbr data-start=\"2420\" data-end=\"2423\"\u003eThis part is often described two different ways in the market: “double yoke” in OEM catalogs and “center socket” in service and aftermarket listings. They are referring to the same core driveline piece for 393831, so the safest match is always by OEM part number plus drive serial number. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2751\" data-end=\"2827\"\u003eShipping\u003cbr data-start=\"2759\" data-end=\"2762\"\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563856658468,"sku":"393831","price":229.53,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/9864ba74-4309-4718-84a6-0e3c07a9cc8f.png?v=1775511537","url":"https:\/\/marisolmarine.com\/products\/mercury-mercruiser-double-yoke-u-joint-393831","provider":"Marisol Marine Company","version":"1.0","type":"link"}