{"product_id":"dorman-579-041-fuel-tank-sending-unit-lock-ring","title":"Dorman 579-041 Fuel Tank Sending Unit Lock Ring","description":"\u003ch2\u003eFuel Tank Sending Unit Lock Ring for Thunderbird\u003c\/h2\u003e\u003cp\u003eDorman 579-041 is a fuel tank sending unit lock ring made for secure retention of the fuel pump assembly at the tank opening. Built from fiber material and supplied with a gasket or seal, it is a direct-fit service part for 1955-1956 Ford Thunderbird fuel system work.\u003c\/p\u003e\u003cp\u003eFor Ford Thunderbird fuel tank service, this lock ring helps restore a proper seal and retention point when the sending unit is removed or replaced. Dorman 579-041 is a practical replacement for technicians and restorers working on classic Thunderbird fuel delivery components.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFiber construction for service use in the fuel tank sending unit area\u003c\/li\u003e\n\u003cli\u003eSecures the fuel pump or sending unit assembly to the tank lock\u003c\/li\u003e\n\u003cli\u003eIncludes gasket or seal for the service application\u003c\/li\u003e\n\u003cli\u003eMounting hardware included for installation\u003c\/li\u003e\n\u003cli\u003eDirect replacement part number: Dorman 579-041\u003c\/li\u003e\n\u003cli\u003eCross-reference: Spectra Premium LO41\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eDorman 579-041 fuel tank sending unit lock ring is recommended whenever the sending unit is serviced. It is made to retain the fuel pump assembly securely at the tank opening, helping maintain a stable connection after service. The fiber material supports dependable fitment in classic fuel tank applications, and the included seal helps complete the service job. This part is a fitment-based replacement for 1955-1956 Ford Thunderbird models and is commonly searched as a Ford Thunderbird fuel tank sending unit lock ring, fuel pump lock ring, or sending unit retaining ring.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLoose or improperly retained fuel sending unit assembly\u003c\/li\u003e\n\u003cli\u003eFuel tank service jobs that require a new retaining ring\u003c\/li\u003e\n\u003cli\u003eSeal issues at the sending unit opening after replacement\u003c\/li\u003e\n\u003cli\u003eDamaged or worn lock ring from prior removal\u003c\/li\u003e\n\u003cli\u003eClassic Ford Thunderbird fuel system maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify tank opening dimensions and sending unit style before installation. Clean the sealing surface thoroughly, position the gasket or seal correctly, and tighten the lock ring evenly so the assembly seats fully. For 1955-1956 Ford Thunderbird fuel tank service, confirm the retaining tabs and lock interface are free of corrosion or distortion before reassembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman replacement hardware is built for serviceable fit and dependable retention in fuel system repairs. Part number 579-041 is intended for direct replacement use on the listed Ford Thunderbird applications.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52776251523253,"sku":"BKKY-579-041","price":19.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_579041_Fro.jpg?v=1783492943","url":"https:\/\/www.partcatalog.com\/products\/dorman-579-041-fuel-tank-sending-unit-lock-ring","provider":"PartCatalog","version":"1.0","type":"link"}