Feature●1 year warranty.●You will get free and quick replacement or refund if any problem in the warranty life time.The problem of part may caused because wrong fitment. It is mostly not a quality problem. So just not hesitate to contact us to get a refund or replacement before you give review. Thanks.●Compatible Oem part no.: 917-769 5S1807; CSS819; CSS819P; PC176; PC176T; SU3028 4897321AA; 4897321AB; 56027868AC; 56027869AC●This Crankshaft Position Crank Sensor Compatible with some Jeep Grand Cherokee Wrangler as details in description.●Pls check your vehicle fitment carefully again in the product description followed to avoid any wrong purchase.And pls keep the package in good condition if you want to return it.Description