{"product_id":"delphi-tc9521-suspension-trailing-arm-rear-left-upper","title":"Delphi TC9521 Suspension Trailing Arm - Rear Left Upper","description":"\u003ch2\u003eRear Left Upper Trailing Arm for OE Fitment\u003c\/h2\u003e\u003cp\u003eDelphi TC9521 is a rear left upper suspension trailing arm built for direct replacement on select Buick, Cadillac, Chevrolet, and GMC vehicles. It is engineered around OE dimensions and material requirements to help maintain suspension geometry and consistent rear-end control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRear left upper suspension trailing arm\u003c\/li\u003e\n\u003cli\u003eOE-style dimensional and material analysis for fitment accuracy\u003c\/li\u003e\n\u003cli\u003eTested for temperature extremes below -40°C and above 120°C\u003c\/li\u003e\n\u003cli\u003eExposed to 720 hours of salt spray testing for corrosion resistance validation\u003c\/li\u003e\n\u003cli\u003eFits select 2017-2023 Cadillac XT5 and XT6, 2018-2023 Buick Enclave, 2018-2023 Chevrolet Traverse, 2019-2023 Chevrolet Blazer, and 2017-2023 GMC Acadia\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplication Details\u003c\/h2\u003e\u003cp\u003eCompatible With rear left upper suspension positions on the listed vehicles, Delphi TC9521 supports OE-style replacement needs where the original trailing arm has worn bushings, developed play, or lost alignment stability. This part cross-references MOOG Chassis Products RK643992 for the same application.\u003c\/p\u003e\u003cp\u003eFits 2018-2023 Buick Enclave, rear left upper. Fits 2017-2023 Cadillac XT5, rear left upper. Fits 2020-2023 Cadillac XT6, rear left upper. Fits 2019-2023 Chevrolet Blazer, rear left upper. Fits 2018-2023 Chevrolet Traverse, rear left upper. Fits 2017-2023 GMC Acadia, rear left upper. Delphi TC9521 is a direct-fit rear left upper trailing arm for these applications.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRear suspension looseness or clunking from a worn trailing arm\u003c\/li\u003e\n\u003cli\u003eUneven rear tire wear related to suspension geometry changes\u003c\/li\u003e\n\u003cli\u003eRear-end instability over bumps or during cornering\u003c\/li\u003e\n\u003cli\u003eExcessive movement at the rear left upper suspension point\u003c\/li\u003e\n\u003cli\u003eAlignment issues caused by a fatigued or damaged arm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the vehicle’s rear left upper position before ordering and compare the original arm to Delphi TC9521 for mounting-point and length confirmation. After installation, a rear wheel alignment is recommended to confirm suspension geometry is within specification.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDelphi applies OE-focused engineering and validation to its aftermarket steering and suspension portfolio. TC9521 is evaluated through extreme-temperature testing and extended salt-spray exposure, with dimensional and material analysis used to support OE-to-aftermarket compatibility.\u003c\/p\u003e","brand":"Delphi","offers":[{"title":"Default Title","offer_id":52923197292725,"sku":"BBMX-TC9521","price":64.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DE_TC9521_FRO.jpg?v=1785652971","url":"https:\/\/www.partcatalog.com\/products\/delphi-tc9521-suspension-trailing-arm-rear-left-upper","provider":"PartCatalog","version":"1.0","type":"link"}