Review on Chevy/GMC Engine Oil Pressure Sensor Switch - Replaces 12677836, D1846A, 926040, 12585328 - Compatible with Silverado, Trailblazer, Tahoe, Suburban, Sierra, Grand Pri and other GM Vehicles by Colin Watkins

The product listing on the Revain website says this is a suitable oil pressure sensor replacement for a 2008 Hummer H3 with a 3.7L L5 petrol engine. Due to the narrow gaps, the transmitter on this vehicle is very difficult to access. Upon access, the discrepancy became apparent as the existing transmitter's plug is oval shaped while the plug on this transmitter is round and much larger than the existing one. Also, the base for this block is 1 1/16, but the existing block is much smaller. I was looking for a 2009 Hummer in the listing. There was an exact match for the current sender. No problem with the product, just the listing. Not my problem!