234-4012 234-4018 Oxygen Sensor O2 Sensor Compatiable with Chevy Silverado 1500 Tahoe Suburban Express 1500 Suburban, GMC Yukon XL Sierra Cadillac Escalade 2344012 SU187 250-24018 4 Pack

Great price

I installed brand new manifolds, y pipe, catalytic converters and complete exhaust system all brand new. Installed these sensors and within a weeK there is no signal from 02 sensors to pcm. Ordered new Warner sensors, don’t waste your time or money.

Make sure you have male or female plugs. I had two female ends. I rewired male ends on. They worked just fine.,

Replaced all of the oxygen sensors and it worked. 98 Chevy C1500 Silverado 4.3 engine.

Bought this four set of O2 sensors to put in my '01 Chevrolet Silverado 4x4 and the two downstream sensors seem to be working but both upstream sensors are throwing error codes saying no sensor detected

These sensors are not useable

Instal was easy , packaged nice with thread protection and anti seize. Cleared my check engine light and runs good.

I started getting o2 sensor codes right before I was due for smog, and rather than pretend to be a real tech I figured I'd take the shotgun approach and replace them all in one go. These ones were a direct fit on my 2000 Yukon XL and immediately solved my issue. The post-cat ones I took out were pretty crusty so I imagine I'll torch these ones before too long, but they got me through CA SMOG without issue.All four cost less than one Delco one and I figured I'd just send them back if they didn't work. Very happy with the outcome and wouldn't hesitate to order another set for another vehicle if the need arose.