Bilstein Air Suspension & Helper Springs

Bilstein air suspension parts here are replacement parts for factory air suspension systems. The range is mostly B4 air struts, the replacement type named in the titles, with a B1 air suspension compressor. Front and rear, and left and right, are listed separately.

This page is not for trucks. The vehicle list is made up of Mercedes-Benz models, including the Mercedes-Benz E320, Mercedes-Benz E550, Mercedes-Benz GL450, Mercedes-Benz ML350, Mercedes-Benz R350 and Mercedes-Benz S550. If you drive a pickup and want an air helper spring, see the full category page below.

Fit comes down to the part number and the position. Titles carry a number such as 44-165062, and many read for select Mercedes-Benz vehicles. Match the number to your old strut where you can, and check front or rear and the side before you order. A failed air strut often means the compressor has been working too hard, so a compressor is listed too.

Each product page lists the years, makes and models it fits. To see air springs and helper springs for trucks, browse the full air suspension and helper springs range. Orders ship across Canada and are priced in Canadian dollars.