Set of 4 Upstream Oxygen Sensors for Chevy Silverado GMC Sierra 1500 (2003–2005)

Includes:
- Set of 4 Upstream Oxygen Sensors

Fits Models:
- Chevrolet Silverado 1500
- GMC Sierra 1500

Model Years:
- 2003–2005

Submodels:
- Common trims include WT (Work Truck), LS, LT, and Z71
- Chassis codes: GMT800
- Body styles: Crew Cab, Extended Cab, Regular Cab

Engine Options:
- Common engine sizes include 4.3L V6, 4.8L V8, 5.3L V8, and 6.0L V8
- Engine codes: L33, LM7, L59, LQ4

Description:
This set of 4 upstream oxygen sensors is designed for 2003–2005 Chevrolet Silverado and GMC Sierra 1500 models. These sensors monitor the exhaust gases to optimize engine performance and fuel efficiency, ensuring your vehicle runs smoothly.

Features:
- Direct fit for easy installation
- Improves fuel efficiency and reduces emissions
- High-quality construction for durability
- Compatible with multiple engine options
- Essential for maintaining optimal engine performance