11721744490 Secondary Air Injection Pump - Compatible with the BMW 1995-1999 E36 323i, 328i, and 1996-1999 M3 (S52 Engine) - Exhaust Emission Pump, Emission Control, Direct Replacement

Compatibility and ApplicationsThis secondary air injection pump (Part Number: 11721744490) is compatible with BMW E36 series vehicles. Compatible with the BMW 323i: 1995, 1996, 1997, 1998, 1999 (M52B25 engine)Compatible with the BMW 328i: 1995, 1996, 1997, 1998, 1999 (M52B28 engine)Compatible with the BMW M3: 1996, 1997, 1998, 1999 (with the S52B32 engine)Note: Not compatible with the M3 (S50 engine), four-cylinder models (such as the 318i), or non-E36 chassis.Key FeaturesPrecision Engineering: Dimensions ensure the same airflow rate and pressure as the original equipment manufacturer (OEM) pump, preserving exhaust system integrity.Rugged Construction: Reinforced polymer housing and stainless steel interior resist corrosion from exhaust heat up to 300°F (175°C) and road salt. Troubleshooting: Alleviates common faults that trigger diagnostic trouble codes (DTCs) P0410/P0411, such as motor burnout or valve clogs.

• 1. Perfect Fit - Precision Design: Part number 11721744490 ensures seamless installation on the 1995-1999 BMW E36 323i, 328i, and 1996-1999 M3 (S52 Engine) without modification.
• 2. Emission Control Solution: Reduces cold-start pollutants by injecting fresh air into the exhaust, preventing the illumination of the check engine light (e.g., P0410 code), and helping the vehicle pass exhaust emissions tests.
• 3. Superior Durability: A high-temperature-resistant housing and corrosion-resistant components extend service life, even under severe operating conditions.
• 4. Performance Restoration: Maintains an optimal air-fuel ratio during ignition, improving engine efficiency, reducing hydrocarbon emissions, and enabling smoother cold starts.
• 5. Compatibility may vary by model year. Please verify compatibility using the Vehicle Identification Number (VIN).