Fitment：4Pcs Front Lower control Arm Compatible With Tesla Model 3 2017-2021. Replace OE:1104434100D, 104435100C, 104435400A, 104435600C, 104435900A, 104434100C. OEM-Grade Reliability:Crafted from premium materials: 104434100D Control Arm kit Boasts flexural strength far exceeding OE stamped parts, with fatigue life increased by 30%+.Safety Enhanced: Eliminates risks of pulling and uneven tire wear caused by ball joint wear, boosting high-speed stability and emergency braking performance. Features:The 4Pcs Model 3 Lower Control Arms effectively eliminates chassis noise, features excellent anti-aging properties to greatly extend service life, significantly enhances driving comfort, and comes with mounting nuts for easy and hassle-free installation. Please check that the part number fits your vehicle before purchasing the 4Pcs Tesla Model 3 Front Lower Control Arm with Ball Joint.