O2 Oxygen Sensor Upstream for GMC Chevrolet (12573721/234-4119)

Includes:
- O2 Oxygen Sensor Upstream

Fits Models:
- GMC: Sierra, Canyon, Savana
- Chevrolet: Silverado, Colorado, Express

Model Years:
- 2002–2013

Submodels:
- Common trims include WT, SLE, SLT, LT, and LTZ
- Chassis codes: GMT900, GMT355, GMT610
- Body styles: Crew Cab, Extended Cab, Regular Cab, Van

Engine Options:
- 4.3L V6, 4.8L V8, 5.3L V8, 6.0L V8, 6.2L V8
- Engine codes: L33, LY2, LY5, L76, L94

Description:
This upstream O2 oxygen sensor is designed to monitor the exhaust gases in your GMC or Chevrolet vehicle, ensuring optimal engine performance and emissions control. It replaces OEM part numbers 12573721 and 234-4119, providing a direct fit for various models.

Features:
- Direct replacement for easy installation
- High-quality materials for durability
- Improves fuel efficiency and reduces emissions
- Compatible with multiple engine sizes
- Designed for long-lasting performance