/live/media/HL/HL_728124200_Fro.jpg)
Pierburg 7.28124.20.0 Secondary Air Injection Pump
| Brand | Pierburg 7.28124.20.0 |
|---|---|
| Operating Mode | Electric |
| Technical Information Number | SI 1150-11 |
| Voltage [V] | 12 |
| Fits | BMW · 12 vehicles |
Electric operation. Runs on 12 volts for consistent secondary air injection performance.
Secondary air injection pump. Supports the emission control system with precise air delivery.
Cross-references URO 11727571591, 7514953 and 7571591 for the same application. See all 7.
Pierburg Secondary Air Injection Pump 7.28124.20.0
The Pierburg 7.28124.20.0 is an electric secondary air injection pump for emission control systems. It supplies fresh air to the exhaust stream during cold start operation to support proper catalyst warm-up and emissions system performance. This unit is a direct-fit option for select BMW X3 and BMW Z4 applications.
Key Features
- Electric secondary air injection pump for 12-volt systems
- Supports the vehicle’s air injection emission control function
- Built to match OE-style fitment for select BMW applications
- Cross-references URO 11727571591 for the same application
- Part number 7.28124.20.0 for ordering and identification
Detailed Description
Pierburg 7.28124.20.0 is an electric secondary air injection pump used in emission control systems to deliver supplemental air during engine warm-up. This helps the exhaust aftertreatment system reach operating conditions more quickly, which is important for cold-start emissions management. It fits 2004-2006 BMW X3, N/A with OE No. 11727571591, and fits 2003-2005 BMW Z4, N/A. The part number 7.28124.20.0 is also useful when verifying the correct replacement for BMW X3 and BMW Z4 air injection service work.
What It Helps Address
- Secondary air injection pump failure codes
- Insufficient air delivery during cold start
- Emissions-related warning lights tied to the air injection system
- Rough cold-start emissions performance
- Replacement needs for a worn or inoperative electric pump
Installation Notes and Tips
Confirm the OE number and vehicle application before installation. This pump operates on a 12-volt electrical system, so inspect the related wiring, relay, fuse, and hoses during diagnosis to avoid repeat failures. Verify the mounting location and connector style against the removed unit on BMW X3 and BMW Z4 models before final installation.
Quality Assurance
Pierburg is an established OE supplier in engine management and emission control components. Technical Information Number SI 1150-11 is listed for reference during service and parts verification.
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2006 | BMW | X3 | Sport Utility | 3.0L | L6 | N/A | with OE No. 11727571591 |
| 2006 | BMW | X3 | Sport Utility | 2.5L | L6 | N/A | with OE No. 11727571591 |
| 2005 | BMW | X3 | Sport Utility | 3.0L | L6 | N/A | with OE No. 11727571591 |
| 2005 | BMW | X3 | Sport Utility | 2.5L | L6 | N/A | with OE No. 11727571591 |
| 2005 | BMW | Z4 | Convertible | 3.0L | L6 | N/A | — |
| 2005 | BMW | Z4 | Convertible | 2.5L | L6 | N/A | — |
| 2004 | BMW | X3 | Sport Utility | 3.0L | L6 | N/A | with OE No. 11727571591 |
| 2004 | BMW | X3 | Sport Utility | 2.5L | L6 | N/A | with OE No. 11727571591 |
| 2004 | BMW | Z4 | Convertible | 3.0L | L6 | N/A | — |
| 2004 | BMW | Z4 | Convertible | 2.5L | L6 | N/A | — |
| 2003 | BMW | Z4 | Convertible | 3.0L | L6 | N/A | — |
| 2003 | BMW | Z4 | Convertible | 2.5L | L6 | N/A | — |
| No rows match your filter. | |||||||