{"product_id":"delphi-tc9398-suspension-control-arm-and-ball-joint-assembly-front-left-upper","title":"Delphi TC9398 Suspension Control Arm and Ball Joint Assembly - Front Left Upper","description":"\u003ch2\u003eFront Left Upper Control Arm Assembly\u003c\/h2\u003e\u003cp\u003eDelphi TC9398 is a front left upper suspension control arm and ball joint assembly for select Lexus performance sedans and coupes. It is built for direct replacement on the front left upper position and supports precise suspension geometry on vehicles such as the Lexus IS300, IS350, IS500, RC F, RC300, RC350, GS F, GS350, GS300, GS450h, GS200t, and RC200t.\u003c\/p\u003e\u003cp\u003eDelphi applies OE-focused dimensional and material analysis to help ensure proper fit and consistent suspension performance. This part number, TC9398, is engineered for demanding temperature and corrosion exposure testing to support long-term durability in real-world driving conditions.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFront left upper suspension control arm and ball joint assembly\u003c\/li\u003e\n\u003cli\u003eDirect-fit replacement for select Lexus applications\u003c\/li\u003e\n\u003cli\u003eOE-style dimensional and material analysis for fit accuracy\u003c\/li\u003e\n\u003cli\u003eTested for extreme temperature exposure from below -40°C to over 120°C\u003c\/li\u003e\n\u003cli\u003eSalt spray tested for 720 hours to evaluate corrosion resistance\u003c\/li\u003e\n\u003cli\u003eDesigned for front suspension service on Lexus IS, RC, and GS platforms\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 2021-2024 Lexus IS300, front left upper\u003c\/li\u003e\n\u003cli\u003eFits 2021-2024 Lexus IS350, front left upper\u003c\/li\u003e\n\u003cli\u003eFits 2022-2024 Lexus IS500, front left upper\u003c\/li\u003e\n\u003cli\u003eFits 2015-2024 Lexus RC F, front left upper\u003c\/li\u003e\n\u003cli\u003eFits 2018-2024 Lexus RC300, front left upper\u003c\/li\u003e\n\u003cli\u003eFits 2015-2024 Lexus RC350, front left upper\u003c\/li\u003e\n\u003cli\u003eFits 2016-2020 Lexus GS F, front left upper\u003c\/li\u003e\n\u003cli\u003eFits 2013-2020 Lexus GS350, front left upper\u003c\/li\u003e\n\u003cli\u003eFits 2018-2019 Lexus GS300, front left upper\u003c\/li\u003e\n\u003cli\u003eFits 2013-2018 Lexus GS450h, front left upper\u003c\/li\u003e\n\u003cli\u003eFits 2016-2017 Lexus GS200t, front left upper\u003c\/li\u003e\n\u003cli\u003eFits 2016-2017 Lexus RC200t, front left upper\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFront-end looseness or wandering caused by worn suspension joints\u003c\/li\u003e\n\u003cli\u003eClunking or knocking from the upper control arm area\u003c\/li\u003e\n\u003cli\u003eUneven tire wear related to suspension geometry wear\u003c\/li\u003e\n\u003cli\u003eSteering instability during braking or cornering\u003c\/li\u003e\n\u003cli\u003eExcess play in the front left upper suspension linkage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eConfirm the front left upper position before installation and verify vehicle trim and model year against the fitment list. After replacement, a professional wheel alignment is recommended to restore suspension geometry and steering response. This part cross-references MOOG Chassis Products RK623971 for the same application.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDelphi uses OE safety technology and aftermarket engineering practices drawn from its original equipment experience. TC9398 is subjected to temperature cycling and extended salt spray testing to help validate durability for front suspension service on Lexus IS, RC, and GS models.\u003c\/p\u003e","brand":"Delphi","offers":[{"title":"Default Title","offer_id":52923196211381,"sku":"BBMX-TC9398","price":146.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DE_TC9398_FRO.jpg?v=1785652738","url":"https:\/\/www.partcatalog.com\/products\/delphi-tc9398-suspension-control-arm-and-ball-joint-assembly-front-left-upper","provider":"PartCatalog","version":"1.0","type":"link"}