Oxygen O2 Sensor Heated 4-Wire For Chevrolet Silverado 1500 & GMC Sierra 1500 - Replaces 12659516, 234-4940

Get your truck running right with this direct replacement oxygen sensor.

It's a heated 4-wire unit that fits the Chevrolet Silverado 1500 and GMC Sierra 1500.

It replaces the OEM number 12659516 and also crosses to 234-4940.

The sensor is brand new (other, with seller notes indicating fast shipping and best quality) and comes with a 1-year warranty.

Installation is straightforward, it's a direct fit.

Just unplug the old one and put this one in.

A faulty O2 sensor can kill your gas mileage and performance, so swapping it out is a smart move.

Get this sensor, pop it in, and get your engine breathing and measuring right again.

Fast shipping from the US.