Secondary Air Pump Pressure Hose, Rein - E39 525i/528i/530i

Replace aging rubber hoses before they cause greater frustration or a serious failure. OEM replacement hose for BMW part #11721435456

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Price:
$27.99

This hose is part of the secondary air pump system on E39 525i/528i/530i models. The secondary air pump adds fresh air to the exhaust to help with cold start emissions and to heat the catalytic converters and O2 sensors. A broken hose likely won't cause any reliability or drivability issues but may cause a check engine light or lead to premature failure of cats or O2 sensors.

This is an air pump hose manufactured by Rein Automotive - an original supplier to BMW for many other hoses and lines. As an OEM it meets all of BMW's original design, fitment, and performance requirements and is TUV approved. OEM-type parts like Rein are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.

BMW Fitments:
5 Series
E39 (97-03) > 525i
E39 (97-03) > 528i 99-00
E39 (97-03) > 530i
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