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Pierburg 7.04389.00.0 Secondary Air Injection Pump
| Brand | Pierburg 7.04389.00.0 |
|---|---|
| Grade Type | Standard replacement |
| Operating Mode | Electric |
| Technical Information Number | Si 1150-11 |
| Voltage [VDC] | 12 |
| Product line | Genuine OE from HELLA |
| Fits | Mercedes-Benz · 135 vehicles |
Standard replacement. OE-level fit and function for straightforward installation.
Electric operation. 12V pump delivers fresh air on cold starts for cleaner exhaust.
Emission control. Helps reduce emissions while keeping engine operation smooth.
Cross-references Bosch 9605, URO 0001403785 and VEMO V30-63-0025 for the same application. See all 11.
Pierburg Secondary Air Injection Pump for Mercedes-Benz
Pierburg 7.04389.00.0 is a 12V electric secondary air injection pump built as a standard replacement for Mercedes-Benz emission control systems. It pushes fresh air into the exhaust during cold starts to help reduce emissions and support smooth engine operation.
Brand Line: Genuine OE from HELLA indicates an OE-focused product line for drivers who want factory-style fit and function in emission control repairs.
Key Features
- 12V electric secondary air injection pump
- Standard replacement grade for emission control service
- Helps deliver fresh air to the exhaust on cold starts
- OE-level fitment focus for Mercedes-Benz applications
- Technical Information Number: SI 1150-11
- Part number: 7.04389.00.0
Detailed Description
This Pierburg secondary air injection pump is engineered for Mercedes-Benz vehicles that rely on an electric air injection system to reduce cold-start emissions. It is a direct-fit style replacement for many V8 and V6 models, including Mercedes-Benz G500, ML500, R500, CL500, CLK500, CLS500, E500, S430, S500, SL500, C240, C320, CLK320, E320, ML350, G55 AMG, SLK320, CLK430, ML320, ML55 AMG, CL55 AMG, CLK55 AMG, E430, E55 AMG, S55 AMG, ML430, C280, and C43 AMG.
This part cross-references Bosch 9605 for the same application. The part number 7.04389.00.0 is also listed with OE-style interchange references for select Mercedes-Benz air injection pump applications.
What It Is Used For
- Reduced cold-start emissions from a failing secondary air system
- Air injection pump noise or electrical failure
- Check engine light related to secondary air flow faults
- Insufficient fresh-air delivery into the exhaust during startup
- Emission inspection issues tied to air injection performance
Installation Notes and Tips
Confirm 12V electric system requirements and match the OE number before ordering. Verify the vehicle’s secondary air injection plumbing, electrical connector, and mounting points during diagnosis, especially on Mercedes-Benz G500, ML500, and E500 applications where multiple emission-control components may be involved. Use the vehicle’s VIN and OE reference A0001403785 when checking fitment for the 7.04389.00.0 pump.
Quality Assurance
Pierburg is supplied as Genuine OE from HELLA, with a focus on OE-level performance and factory-style replacement fitment for emission control repairs.
| Year | Make | Model | Submodel | Drive Type | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 2008 | Mercedes-Benz | G500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2007 | Mercedes-Benz | G500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2007 | Mercedes-Benz | ML500 | — | AWD | Automatic | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2007 | Mercedes-Benz | R500 | — | AWD | Automatic | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2006 | Mercedes-Benz | CL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2006 | Mercedes-Benz | CLK500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2006 | Mercedes-Benz | CLK55 AMG | — | — | — | 5.5L | V8 | — | N/A | With OE No. A0001403785; Genuine OE from HELLA |
| 2006 | Mercedes-Benz | CLS500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2006 | Mercedes-Benz | E500 | 4Matic | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2006 | Mercedes-Benz | G500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2006 | Mercedes-Benz | ML500 | — | AWD | Automatic | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2006 | Mercedes-Benz | R500 | — | AWD | Automatic | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2006 | Mercedes-Benz | S350 | — | — | — | 3.7L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2006 | Mercedes-Benz | S430 | 4Matic | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2006 | Mercedes-Benz | S500 | 4Matic | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2006 | Mercedes-Benz | SL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | C240 | 4Matic | — | — | 2.6L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | C320 | 4Matic | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | CL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | CLK320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | CLK500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | CLK55 AMG | — | — | — | 5.5L | V8 | — | N/A | With OE No. A0001403785; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | CLS500 | — | — | — | 5.0L | V8 | GAS | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | E320 | 4Matic | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | E500 | 4Matic | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | G500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | ML350 | — | — | — | 3.7L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | ML500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | S430 | 4Matic | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | S500 | 4Matic | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2005 | Mercedes-Benz | SL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | C240 | 4Matic | — | — | 2.6L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | C320 | 4Matic | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | CL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | CLK320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | CLK500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | CLK55 AMG | — | — | — | 5.5L | V8 | — | N/A | With OE No. A0001403785; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | E320 | 4Matic | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | E500 | 4Matic | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | G500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | G55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | ML350 | — | — | — | 3.7L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | ML500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | S430 | 4Matic | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | S500 | 4Matic | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | SL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2004 | Mercedes-Benz | SLK320 | — | — | — | 3.2L | V6 | GAS | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | C240 | 4Matic | — | — | 2.6L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | C320 | 4Matic | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | CL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | CLK320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | CLK430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | CLK500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | CLK55 AMG | — | — | — | 5.5L | V8 | — | N/A | With OE No. A0001403785; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | E320 | 4Matic | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | E500 | — | — | — | 5.0L | V8 | GAS | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | G500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | G55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | ML320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | ML350 | — | — | — | 3.7L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | ML500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | ML55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | S430 | 4Matic | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | S500 | 4Matic | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | SL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2003 | Mercedes-Benz | SLK320 | — | — | — | 3.2L | V6 | GAS | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | C240 | — | — | — | 2.6L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | C320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | CL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | CL55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | CLK320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | CLK430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | CLK55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | E320 | 4Matic | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | E430 | 4Matic | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | E55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | G500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | ML320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | ML500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | ML55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | S430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | S500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | S55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | SL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2002 | Mercedes-Benz | SLK320 | — | — | — | 3.2L | V6 | GAS | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | C240 | — | — | — | 2.6L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | C320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | CL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | CL55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | CLK320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | CLK430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | CLK55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | E320 | 4Matic | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | E430 | 4Matic | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | E55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | ML320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | ML430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | ML55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | S430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | S500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | S55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | SL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2001 | Mercedes-Benz | SLK320 | — | — | — | 3.2L | V6 | GAS | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | C280 | — | — | — | 2.8L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | C43 AMG | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | CL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | CLK320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | CLK430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | E320 | 4Matic | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | E430 | 4Matic | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | E55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | ML320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | ML430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | ML55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | S430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | S500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 2000 | Mercedes-Benz | SL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1999 | Mercedes-Benz | C280 | — | — | — | 2.8L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1999 | Mercedes-Benz | C43 AMG | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1999 | Mercedes-Benz | CLK320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1999 | Mercedes-Benz | CLK430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1999 | Mercedes-Benz | E320 | 4Matic | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1999 | Mercedes-Benz | E430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1999 | Mercedes-Benz | E55 AMG | — | — | — | 5.5L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1999 | Mercedes-Benz | ML320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1999 | Mercedes-Benz | ML430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1999 | Mercedes-Benz | SL500 | — | — | — | 5.0L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1998 | Mercedes-Benz | C280 | — | — | — | 2.8L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1998 | Mercedes-Benz | C43 AMG | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1998 | Mercedes-Benz | CLK320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1998 | Mercedes-Benz | E320 | 4Matic | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1998 | Mercedes-Benz | E430 | — | — | — | 4.3L | V8 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1998 | Mercedes-Benz | E55 AMG | — | — | — | 5.5L | V8 | GAS | N/A | 12V - Electric; Genuine OE from HELLA |
| 1998 | Mercedes-Benz | ML320 | — | — | — | 3.2L | V6 | — | N/A | 12V - Electric; Genuine OE from HELLA |
| 1998 | Mercedes-Benz | ML430 | — | — | — | 4.3L | V8 | GAS | N/A | 12V - Electric; Genuine OE from HELLA |
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