Oxygen Sensor for GMC Sierra 3500 (2001–2002) Upstream & Downstream x2

Includes:
- Oxygen Sensor

Fits Models:
- GMC Sierra 3500

Model Years:
- 2001–2002

Submodels:
- Common trims include SL, SLE, SLT; body styles are Crew Cab, Extended Cab, Regular Cab; chassis code is GMT800.

Engine Options:
- Common engine sizes include 6.0L V8 (LQ4), 8.1L V8 (L18), and 5.3L V8 (LM7).

Description:
This oxygen sensor is designed for the GMC Sierra 3500 models from 2001 to 2002, providing reliable performance for both upstream and downstream applications. It ensures optimal engine efficiency by monitoring exhaust gases and adjusting the air-fuel mixture accordingly.

Features:
- Direct fit for GMC Sierra 3500 (2001–2002)
- Includes both upstream and downstream sensors
- Enhances fuel efficiency and reduces emissions
- Durable construction for long-lasting performance
- Easy installation with no modifications required