The Lowest Price Perfect Fit Guarantee
Our #1 value is customer service.
We believe in doing right by our customers, no matter what it takes.
In keeping with that, we offer a “perfect fit guarantee” that ensures your satisfaction on 3 levels: low price, free shipping, and perfect fitment.
- Alan Marek, Founder of PartCatalog.com
The Lowest Price Anywhere--Guaranteed
At PartCatalog, we’ll beat any competing vendor’s price. And we’re so confident in our rock-bottom prices that we’ll refund the difference if you find a lower price elsewhere.
Free Shipping Both Ways
Our “free shipping both ways” policy means that returns and orders ship free of charge. When you place an order, you pay only the list price and any applicable taxes. We cover the shipping to save you money and ensure timely delivery.
100% Guaranteed to Fit
In the highly unlikely event of a fitment problem, we’ll return your purchase at no cost to you. We pay return shipping on all orders, so it won’t cost you a penny to send back a defective part.
Enjoy better vehicle performance and handling with the use of the Bilstein B4 OE Replacement (Air).
- Quick shocks response
- Constant damping characteristics under any load
- Conventional hydraulic shock absorbers with air spring
- Ultimate comfort and control
Matches Your Vehicle’s Original Characteristics
A premium factory replacement, the Bilstein B4 OE Replacement (Air) will match your vehicle’s characteristics.
Efficient Gas Technology
The Bilstein B4 OE Replacement (Air) utilizes time-proven gas technology to pressurize oil in the observer, which then prevents foaming when the loads and temperature increase.
Quick Shocks Response
With the use of the Bilstein B4 OE Replacement (Air), your shocks will respond quickly to changing street and vehicle conditions.
Rest assured, the Bilstein B4 OE Replacement (Air) will last you for a long time. And it will be one of the best investments that you will make for your vehicle.
The following part numbers are available in this product line:
To purchase this product for your vehicle, please select the Year, Make and Model of your vehicle at the top of this page.
745i, 745Li, 750i, 750Li, 760i, 760Li, Alpina B7
Super V8, Vanden Plas, XJ, XJ8, XJR
Land Rover (2003-2016)
LR3, LR4, Range Rover, Range Rover Sport
CL550, CL600, CLS500, CLS55 AMG, CLS550, CLS63 AMG, E320, E500, E55 AMG, E550, E63 AMG, GL320, GL350, GL450, GL550, ML320, ML350, ML450, ML500, ML550, ML63 AMG, R320, R350, R500, R63 AMG, S350, S400, S430, S500, S550, S550e