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Category: 3-Series 1999-2005 E46
Pre-catalyst / Before catalyst O2 sensor.Select sensor location from the menu.Made by Bosch OEM.BMW has now superseded this item to one single Bosch part for both locations. Part# 11 78 7 523 434 = Before catalyst in front exhaust manifold. Part# 11 78 7 523 435 = Before catalyst
Pre-catalyst / Before catalyst O2 sensor.Select sensor location from the menu.Made by Bosch OEM.BMW has now superseded this item to one single Bosch part for both locations.
Part# 11 78 7 523 434 = Before catalyst in front exhaust manifold.
Part# 11 78 7 523 435 = Before catalyst in rear exhaust manifold.
Buyers Note: Only for E46 models built from 03/2003-2006, Does not fit models with the M56 Super Low Emissions Engine
Cross Reference:
17215
Fitment: 325i \\u0026 325ci 03\\/2003-2006 \\/ Before Cat Front Manifold,325i \\u0026 325ci 03\\/2003-2006 \\/ Before Cat Rear Manifold,330i \\u0026 330ci 03\\/2003-2006 \\/ Before Cat Front Manifold,330i \\u0026 330ci 03\\/2003-2006 \\/ Before Cat Rear Manifold
You are requesting a quote for BMW E46 3-Series O2 Sensor 03/2003-2006 Pre Cat OEM 11787523434 or 11787523435. Please fill out the form below with your OE list, quantity needs or questions.
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