{"product_id":"sunsong-3405377-power-steering-return-line-hose-assembly-gear-to-cooler","title":"Sunsong 3405377 Power Steering Return Line Hose Assembly - Gear To Cooler","description":"\u003ch2\u003ePower Steering Return Line for Audi A8 Quattro\u003c\/h2\u003e\u003cp\u003eThis Sunsong power steering return line hose assembly is built for the 2004-2010 Audi A8 Quattro, Gear To Cooler application. Part number 3405377 is a direct-fit fluid transfer hose assembly engineered around the vehicle’s original routing and connection points.\u003c\/p\u003e\u003cp\u003eMade with CSM material and formed to the correct length, this hose assembly supports clean return-side fluid flow between the steering gear and cooler on the Audi A8 Quattro. Sunsong focuses on exact form, fit, and function, with manufacturing practices centered on OE-style replacement accuracy.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 2004-2010 Audi A8 Quattro, Gear To Cooler\u003c\/li\u003e\n\u003cli\u003ePart number 3405377\u003c\/li\u003e\n\u003cli\u003eCSM hose material for automotive fluid transfer use\u003c\/li\u003e\n\u003cli\u003e52.36 in. overall length for the specified routing\u003c\/li\u003e\n\u003cli\u003eBanjo fitting on End 1, ID hose connection on End 2\u003c\/li\u003e\n\u003cli\u003eNo bracket included\u003c\/li\u003e\n\u003cli\u003eNo switch port included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eSunsong 3405377 is a power steering return line hose assembly for the Audi A8 Quattro, designed for the gear-to-cooler path used on 2004-2010 models. The assembly uses a banjo fitting at one end and an ID hose connection at the other, matching the return-line layout required for this application. With a measured length of 52.36 inches and CSM construction, it is built to follow the original hose routing and connection style. This part cross-references Dorman - HELP 81345 for the same application.\u003c\/p\u003e\u003cp\u003eSunsong is a vertically integrated manufacturer focused on automotive fluid transfer hoses and lines, with development centered on installer needs and OE-level fitment. Part number 3405377 is intended for buyers searching for a power steering return hose for Audi A8 Quattro steering systems, a return line hose assembly for 2004-2010 Audi A8 Quattro, or an OE-style steering gear to cooler hose replacement.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCracked or leaking power steering return hose\u003c\/li\u003e\n\u003cli\u003eFluid seepage at the banjo or hose connection\u003c\/li\u003e\n\u003cli\u003eRestricted return flow from aged hose material\u003c\/li\u003e\n\u003cli\u003eIncorrect hose routing after a failed replacement\u003c\/li\u003e\n\u003cli\u003eNoise or steering performance issues related to low fluid level from a leak\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the vehicle is a 2004-2010 Audi A8 Quattro with the Gear To Cooler routing before installation. Compare the original hose shape, fitting style, and overall length to part number 3405377 before removal. Inspect mating surfaces, clamps, and connection points for wear or contamination, and confirm the steering system is properly bled after service.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eSunsong manufactures automotive fluid transfer components with a focus on OE-style form, fit, and function. The brand’s vertically integrated process supports consistent production standards for steering hose replacement applications such as the Audi A8 Quattro power steering return line hose assembly.\u003c\/p\u003e","brand":"Sunsong","offers":[{"title":"Default Title","offer_id":52845464256693,"sku":"FTTD-3405377","price":64.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/S5_3405377_FRO.jpg?v=1784789852","url":"https:\/\/www.partcatalog.com\/products\/sunsong-3405377-power-steering-return-line-hose-assembly-gear-to-cooler","provider":"PartCatalog","version":"1.0","type":"link"}