HQPASFY O2 Oxygen Sensor Compatible with Chevy Silverado Tahoe Suburban Express GMC Sierra Yukon Cadillac Escalade & More O2 Sensor Replaces# 234-4012, 234-4018 4 Pack

Good looking have not installed them yet

See reviews first, I give it a try and same situation as 2 other people here. I purchased these for my 2002 tahoe 5.3L RWD, they fit great, easy install with a $20 amazon tool but I ended up purchasing another 4 of them OEM (GM and AC Delco), the 2 upstream sensors here were defective, they weren't sending signal to pcm. So for my opinion to you is to spend $100 more on oem's but you know they gonna be last for along time with no problems.

Replacement

I like how my orders were taken, tracked, and delivered with no problems

Bought the kit that was recommended for my truck. Installed the front 2, only to find the rears were wrong. But the front ones work great! Can't complain about the price, anyway!

I purchased this set of 4 O2 sensors for my 1999 Chevy Silverado a couple of months ago. Finally got around to installing them a couple of days ago. Installation was fairly straightforward and everything went well. right out of the box, one of the upstream sensors failed and within a week the other upstream sensor failed. Now I have to find another set to replace these (I'll probably replace all 4) before I can attempt to return them. Total waste of time and effort. I wish I had read the reviews a little more carefully.

Excellent price and product.

Easy to install, though 1 of the upstream sensors was not any good, will not order from them again