[Vehicle Fitment-1]: Compatible with Lexus RX350/RX450h 2010-2012---Rear Left, Driver Side. [Vehicle Fitment-2]: Compatible with Toyota Sienna 2011-2012---Rear Left, Driver Side. [Reference Number]: 478220E020, 4782248100, 478500E020, 19-B6281. [Specification]: Brake Piston Count: 1 Piston; Inlet Port Size: M10 x 1.0; OD Piston Size(mm): 41.00 mm; Piston Size (OD) (in): 1.61 Inch; Bleeder Port Size: M10 x 1.0; The Brake Calipers are coated with antirust coating, which can effectively prolong the service life.
