{"product_id":"dorman-526-543-lateral-arm-rear-upper-forward","title":"Dorman 526-543 Lateral Arm - Rear Upper Forward","description":"\u003ch2\u003eDorman 526-543 Rear Upper Forward Lateral Arm\u003c\/h2\u003e\u003cp\u003eDorman 526-543 is a steel lateral arm built as a standard replacement for the rear upper forward suspension position. It is precision-engineered and tested to replace the original equipment arm on select Lexus applications, including Lexus IS300, IS350, IS500, RC300, RC350, GS350, and related models.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSteel tubular construction with a black powder-coated finish\u003c\/li\u003e\n\u003cli\u003eStandard replacement lateral arm for rear upper forward suspension use\u003c\/li\u003e\n\u003cli\u003eIncludes bushings with rubber bushing material\u003c\/li\u003e\n\u003cli\u003eStraight shape with bracket-style attachment on one end and bushing attachment on the other\u003c\/li\u003e\n\u003cli\u003eBlack semi-gloss appearance for OE-style service replacement\u003c\/li\u003e\n\u003cli\u003eNot pre-greased, not adjustable, and grease fittings are not included\u003c\/li\u003e\n\u003cli\u003eBall joint not included and ball joint is not installed\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman lateral arm, part number 526-543, is designed for rear upper forward suspension service on select Lexus vehicles. The tubular steel construction and powder-coated finish provide a durable replacement structure, while the included rubber bushings support proper suspension articulation at the mounting points. It is a direct-fit style replacement for applications such as 2016-2024 Lexus IS300, 2014-2024 Lexus IS350, 2022-2024 Lexus IS500, 2016-2024 Lexus RC300, and 2015-2024 Lexus RC350. This part cross-references Mevotech Supreme CMS861354 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRear suspension looseness or excess movement at the upper forward arm\u003c\/li\u003e\n\u003cli\u003eClunking or knocking noises from worn suspension bushings\u003c\/li\u003e\n\u003cli\u003eUneven rear tire wear caused by worn lateral arm components\u003c\/li\u003e\n\u003cli\u003eHandling instability or imprecise rear suspension response\u003c\/li\u003e\n\u003cli\u003eCorrosion or fatigue in the original suspension arm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify vehicle fitment by year, make, model, and rear upper forward position before installation. This arm uses bracket and bushing attachment points, with a 14.2 mm mounting hole diameter and a 37 mm bushing length. Because mounting hardware is not listed as included, reuse or source the correct hardware as needed for the specific vehicle application. After installation, perform a suspension inspection and alignment check to confirm proper geometry.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman designs this lateral arm as a precision-engineered replacement and subjects it to testing for reliable OE-style service on the listed Lexus applications. Part number 526-543 is intended for direct replacement use on the confirmed fitments shown below.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 2016-2024 Lexus IS300, Rear Upper Forward\u003c\/li\u003e\n\u003cli\u003eFits 2014-2024 Lexus IS350, Rear Upper Forward\u003c\/li\u003e\n\u003cli\u003eFits 2022-2024 Lexus IS500, Rear Upper Forward\u003c\/li\u003e\n\u003cli\u003eFits 2016-2024 Lexus RC300, Rear Upper Forward\u003c\/li\u003e\n\u003cli\u003eFits 2015-2024 Lexus RC350, Rear Upper Forward\u003c\/li\u003e\n\u003cli\u003eFits 2018 Lexus GS300, Rear Upper Forward\u003c\/li\u003e\n\u003cli\u003eFits 2013-2018 Lexus GS350, Rear Upper Forward\u003c\/li\u003e\n\u003cli\u003eFits 2013-2018 Lexus GS450h, Rear Upper Forward\u003c\/li\u003e\n\u003cli\u003eFits 2016-2017 Lexus GS200t, Rear Upper Forward\u003c\/li\u003e\n\u003cli\u003eFits 2016-2017 Lexus IS200t, Rear Upper Forward\u003c\/li\u003e\n\u003cli\u003eFits 2016-2017 Lexus RC200t, Rear Upper Forward\u003c\/li\u003e\n\u003cli\u003eFits 2014-2015 Lexus IS250, Rear Upper Forward\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52859191460021,"sku":"BKKY-526-543","price":116.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_526543_FRO.jpg?v=1784873398","url":"https:\/\/www.partcatalog.com\/products\/dorman-526-543-lateral-arm-rear-upper-forward","provider":"PartCatalog","version":"1.0","type":"link"}