This Genuine Honda Key (4.5X21) 90704-PNA-000 is a perfect fit for Acura RSX K20A2 K20A3 K20Z1 & TSX K24A2. The crank key or crankshaft key is an essential component for the smooth operation of the engine. This OEM replacement part ensures that your vehicle is running at its best. The brand name of Honda and the interchange part number 90704-PNA-000 are proof of the authenticity of this product. This direct replacement part does not compromise on the quality and reliability standards of the original part. With an unspecified length of manufacturer warranty, you can be assured of the durability of this product.