Applications include: Ducati wide band O2 sensors. Toyota & Volvo O2 sensors. For use on any M18 x 1.5 thread. Total length: 42mm. Manufactured from TiN (Titanium Nitride) coated chrome molybdenum. Use with axle grease for clean threads and to catch any removed metal in the flutes. Other sizes also available, please see Part Nos. 9003 (M12 x 1.25), 9004 (M14 x 1.5), 9005 (M16 x 1.5), 9007 (M20 x 1.5), 9008 (M22 x 1.5).