Toyota 45510-48040 Steering Rack Assembly

The Toyota 45510-48040 is a genuine OEM power steering rack and pinion assembly designed for Lexus RX350 and RX450h models produced between 2010 and 2015. This unit integrates an electric power steering (EPS) system with a manual rack mechanism, providing precise steering control and responsive handling. The assembly includes inner tie rods and dust boots for complete installation. Manufactured to Toyota OEM specifications, the steering gear assembly restores factory steering feel, reduces play, and ensures accurate tracking. The housing is constructed from aluminum alloy with a hardened steel rack bar. The unit is calibrated for left-hand drive (LHD) vehicles equipped with the 2GR-FE 3.5L V6 engine (RX350) or 2GR-FXE 3.5L V6 hybrid powertrain (RX450h). Direct replacement for OEM part numbers 45510-48040, 45510-48030, 45510-0E010, and 45510-0T010.