2 Pairs Oxygen O2 Sensor for 2006 Chevy AVALANCHE 1500 TAHOE GMC SIERRA 1500 O2 sensor 234-4337 234-4336

Fitment:Upstream and downstream oxygen sensor compatible with Chevy 2006 AVALANCHE 1500,SILVERADO 1500,SUBURBAN 1500,TAHOE 5.8L Interchange Part Number:234-4337,234-4336 Product Specifications: Package Includes--4 x Oxygen Sensor Feature: The key parts including chip from top supplier; Quicker response times; 100% test before shipment; Stock parts direct replacement and with pre-coated threads to help installation; reduce harmful emissions, increase fuel economy, improve engine performance and prevent premature failure of the catalytic converter. Tip: Bank 1 Sensor 1=Upstream Right/Rear; Bank 2 Sensor 1=Upstream Left/Front; Bank 1 Sensor 2=Downstream Right/Rear; Bank 2 Sensor 2=Downstream Left/Front; sensor 1=Upstream, sensor 2=Downstream.