ENA Set of 4 Rear Reverse Backup Parking Bumper Park Assist Sensor Compatible with Chevrolet Chevy GMC Cadillac Buick Replacement for 25961317 25961321 21995586 15239247 25962147 219955862 15880031

Removed my old park sensors and plugged these in yo see which one was bad and, all but 1 was bad, so i replaced them all and no issues. Now i have an old spare just incase. 10x better than going to GM to get new ones. Installed theses on my avalanche withing an issue. Great replacement.