Spare Parts, durable and easy to install.Fine workmanship and perfect style.Specification: This Oxygen O2 Sensor is a new, aftermarket replacement part that has the following specifications: Direct FitCorrect Connector No cutting or splicingInterchange Part Number: 234-4940, 234-4974Line length: 500mm4 wire configuration.Direct Plug-In Replacement.Built and tested to quality control standardsFit Vehicles: for Escalade 2015-2018for 1500 2014-2017for 2015-2018for 2015-2018for 1500 2014-2017for 2015-2018for XL 2015-2018Material: plastic+metalcolour: As shownPackage Contents: 4 x Oxygen SensorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.