{"product_id":"tc-remanufacturing-hd3688-6-2-automatic-transmission-torque-converter","title":"TC Remanufacturing HD3688-6-2 Automatic Transmission Torque Converter","description":"\u003ch2\u003eOverview of TC Remanufacturing HD3688-6-2 Torque Converter\u003c\/h2\u003e\u003cp\u003eThe TC Remanufacturing HD3688-6-2 is an automatic transmission torque converter designed specifically for Ford heavy-duty trucks. Engineered to meet the demands of Ford E-250, E-350 Super Duty, F-250 Super Duty, and F-350 Super Duty models, this torque converter offers reliable performance and compatibility.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBolt Circle Diameter: 11.375 inches\u003c\/li\u003e\n\u003cli\u003eConverter Diameter: 12.750 inches\u003c\/li\u003e\n\u003cli\u003eMulti-disc lock-up converter type for improved efficiency\u003c\/li\u003e\n\u003cli\u003eHub Type: Flats \/ stepped design\u003c\/li\u003e\n\u003cli\u003eMounting Type: Studs\u003c\/li\u003e\n\u003cli\u003ePilot Diameter: 1.375 inches\u003c\/li\u003e\n\u003cli\u003eSpline Count: 31\u003c\/li\u003e\n\u003cli\u003eStall Speed Range: 1500-1700 RPM\u003c\/li\u003e\n\u003cli\u003eConverter Codes: 6mm, ww9\u003c\/li\u003e\n\u003cli\u003eRing Gear: Not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis automatic transmission torque converter, part number HD3688-6-2, is built to fit Ford's heavy-duty truck lineup including the E-250, E-350 Super Duty, F-250 Super Duty, and F-350 Super Duty. The multi-disc lock-up design enhances transmission efficiency by reducing slippage and improving fuel economy under load. The 12.750-inch converter diameter and 11.375-inch bolt circle ensure precise fitment and compatibility with the specified Ford models. Featuring a flats\/stepped hub type and stud mounting, this torque converter is engineered for secure installation and durability. The 31 spline count and 1.375-inch pilot diameter align with factory specifications to maintain proper drivetrain engagement. The stall speed range of 1500-1700 RPM is optimized for these heavy-duty applications, providing smooth power transfer and reliable performance.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or damaged torque converters in Ford E-250 and E-350 Super Duty transmissions\u003c\/li\u003e\n\u003cli\u003eAddresses issues with transmission slippage or overheating\u003c\/li\u003e\n\u003cli\u003eResolves poor acceleration or shuddering during lock-up engagement\u003c\/li\u003e\n\u003cli\u003eImproves fuel efficiency by optimizing lock-up timing\u003c\/li\u003e\n\u003cli\u003eRestores proper stall speed for heavy-duty towing and hauling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with Ford E-250, E-350 Super Duty, F-250 Super Duty, and F-350 Super Duty models before installation\u003c\/li\u003e\n\u003cli\u003eVerify torque converter codes (6mm, ww9) match vehicle specifications\u003c\/li\u003e\n\u003cli\u003eInspect transmission input shaft and seals for wear prior to installation\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications on studs during mounting\u003c\/li\u003e\n\u003cli\u003eCheck stall speed requirements to match vehicle usage and engine setup\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eTC Remanufacturing provides this torque converter with a focus on durability and performance consistency. Each unit undergoes rigorous testing to meet OEM standards for fit and function. While specific warranty details may vary, TC Remanufacturing typically offers coverage against defects in materials and workmanship to ensure customer confidence in the HD3688-6-2 torque converter.\u003c\/p\u003e","brand":"TC Remanufacturing","offers":[{"title":"Default Title","offer_id":43389836460213,"sku":"HKFT-HD3688-6-2","price":577.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DU_HD368862_Fro.jpg?v=1774728016","url":"https:\/\/www.partcatalog.com\/products\/tc-remanufacturing-hd3688-6-2-automatic-transmission-torque-converter","provider":"PartCatalog","version":"1.0","type":"link"}