General description Designed to fit the plastic threaded locking ring that holds the fuel sender unit in the fuel tank on Toyota and Lexus models. The Laser Tools Fuel Tank Sender Wrench (model 8245) allows for the removal of the ring without risk of damage, even when the plastic fuel sender rings are tight and brittle. Technical specifications External diameter: 174 mm Internal diameter: 143 mm Compatibility and accessories Toyota applications: Corolla, Land Cruiser, Matrix, Yaris, Prius Hybrid, Vios Lexus applications: RX330, RX350, RX450H Designed to fit OEM locking rings: Toyota 77144-04010 & 77144-52040; Lexus 77144-48020 Installation Use with a 21 mm spanner or 1/2" drive socketry