Genuine 5QN 131 128 G Secondary Air Injection Pump Hose Inlet

The Genuine OEM 5QN 131 128 G is a Secondary Air Injection Pump Hose (inlet hose) designed as a factory-direct replacement for the secondary air injection system. As a genuine OEM part, it is manufactured to the exact factory specifications, ensuring a precise, leak-free fit and reliable long-term performance within the emission control system.

The secondary air injection system reduces harmful exhaust emissions during cold starts by pumping fresh air into the exhaust stream. This inlet hose connects the secondary air injection pump to the valve, playing a critical role in maintaining proper airflow and system integrity. A cracked, hardened, or leaking hose can trigger emissions-related fault codes and cause the system to underperform.

Key Features:

• Genuine OEM part — manufactured to factory specifications for guaranteed fit and function
• Functions as the inlet hose in the secondary air injection pump assembly
• Connects the secondary air injection pump to the valve
• Supports proper emissions system operation and helps maintain compliance
• Direct factory replacement — no modifications required for installation
• Backed by the manufacturer's standard warranty

Part Number Cross-Reference: 5QN 131 128 G | 5QN-131-128-G | 5QN131128C (superseded)

This genuine OEM secondary air injection pump hose is sold as a single unit and is the correct factory replacement to restore proper emission system function.