ABS Sensor Tone RingAll ABS sensors are 100% fit, form and function tested for fast and easy installationABS Speed Sensor Ring – FrontThe anti-lock brake (ABS) sensor uses OE matching connectors and terminals ensuring an accurate water-tight connection to the engine wire harness and fast and cost efficient installation.ABS Speed Sensor Ring – FrontRingABS Speed Sensor Ring – FrontEach sensor housing is mad of high quality plastic for optimum durability during extreme conditions to the elements.Metal sleeve is made of high durability aluminum that allows for secure, easy and fast mounting.O-ring is made of Viton material for optimal sensor performance at extreme hot and cold temperatures, as well as resistance to degradation from exposure to oils, fuels, lubricants and most mineral acids.