2X Downstream Oxygen Sensor for GMC Sierra 1500 (2003–2006)

Includes:
- 2X Downstream Oxygen Sensor

Fits Models:
- GMC Sierra 1500

Model Years:
- 2003–2006

Submodels:
- Common trims include SLE, SLT, WT (Work Truck), and Denali. Chassis code is GMT800.

Engine Options:
- Common engine sizes include 4.3L V6 (L35), 4.8L V8 (L20), 5.3L V8 (LM7, L59), and 6.0L V8 (LQ4).

Description:
This product includes two downstream oxygen sensors designed specifically for the GMC Sierra 1500 from 2003 to 2006. These sensors monitor the exhaust gases after the catalytic converter, ensuring optimal engine performance and emissions control.

Features:
- Direct fit replacement for easy installation
- Enhances fuel efficiency and reduces emissions
- Compatible with multiple engine options
- Durable construction for long-lasting performance
- Improves overall vehicle performance and responsiveness