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Suspension and Components› Shocks, Struts, Coil-Overs and Components

Bilstein

B4 OE Replacement Front Assembled Coilover

$667.62 $632.95 Save $34.67

SKU: l4530139-ASB

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Bilstein B4 OE Replacement Front Assembled Coilovers are designed for the BMW X1 2016-2021 models with sport suspension. These fully assembled coilovers come complete with new top mounts and all necessary hardware for installation. They utilize BILSTEIN's gas-pressure technology to provide constant damping power under any load.

These coilovers offer high power reserves for maximum safety and an optimum driving experience. They are manufactured in the USA with a monotube internal design and feature black dampers with black springs. The upper mounting style is stud, and the lower mounting style is eyelet.
Show original supplier description
The Bilstein B4 OE Replacement Front Assembled Coilovers are engineered to deliver the original driving experience of your BMW X1 (2016-2021) with sport suspension. BILSTEIN's renowned gas-pressure technology is at the core of these coilovers, providing constant damping power, high traction, and precise handling, even under demanding conditions. This product comes as a fully assembled unit, simplifying installation. It includes new top mounts and all the necessary hardware required for a straightforward fit. The dampers are finished in black with black springs, maintaining a clean aesthetic. Manufactured in the USA, these coilovers feature a robust monotube internal design. The upper mounting style is stud, and the lower mounting style is eyelet, ensuring compatibility with the specified BMW X1 models. Key benefits include high power reserves for enhanced safety and an optimum driving experience reminiscent of the vehicle's initial state. The OE Replacement Coil brand ensures a direct fit and feel, while the Bilstein B4 OE Replacement shock series guarantees reliability and performance. The front placement on the vehicle is standard for this assembled coilover unit.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandBilstein
Part Numberl4530139-ASB
CategorySuspension and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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