<p>Includes: - Secondary Air Injection Pump Relay</p> <p>Fits Models: - Chevrolet Express 3500</p> <p>Model Years: - 2003–2021</p> <p>Submodels: - Common trims include LS, LT, and 3500 series; chassis code G3500; body style van</p> <p>Engine Options: - Compatible with standard engine options, including 4.8L V8, 5.3L V8, and 6.0L V8</p> <p>Description: This Secondary Air Injection Pump Relay is designed specifically for the Chevrolet Express 3500 from 2003 to 2021. It plays a crucial role in the vehicle's emissions control system by managing the operation of the secondary air injection pump, which helps reduce harmful emissions during cold starts.</p> <p>Features: - Direct replacement for a proper fit - Enhances vehicle emissions performance - Durable construction for long-lasting use - Easy installation with no modifications required</p> <p>Part Numbers: - 72838QFJR</p>