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          Bilstein 44-156251 - Air Suspension Strut (Front)

          MPN: 44-156251
          The Bilstein 44-156251 Air Suspension Strut improves handling and comfort for your Mercedes-Benz. Designed for easy installation and lasting performance.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $1099.00
          In stock

          Product Overview

          The Bilstein Air Suspension Strut part number 44-156251 is the ideal replacement for your Mercedes-Benz vehicle, offering unmatched reliability and performance. Designed with precision engineering, this strut ensures superior handling and enhanced stability, making it the perfect choice for those looking to upgrade their suspension system. This Bilstein air strut assembly is compatible with a range of Mercedes-Benz models, featuring a monotube design that delivers consistent performance even under challenging driving conditions. Engineered to meet or exceed OEM specifications, it guarantees a long-lasting solution for your vehicle's suspension needs. Choose Bilstein 44-156251 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Bilstein 44-156251 is equivalent to or replaces the following part numbers: 1643204313, 1643204613, 1643205813, 1643206013, BL5-F625, BL5F625, F4-BL5-F625-H0, F4BL5F625H0.

          Vehicle Compatibility

          • Mercedes-Benz ML350 Bluetec 4Matic 3.0 V6 DIESEL (2010–2011)
          • Mercedes-Benz ML350 Base 3.5 V6 GAS (2006–2011)
          • Mercedes-Benz ML350 4Matic 3.5 V6 GAS (2006–2011)
          • Mercedes-Benz ML550 Base 5.5 V8 GAS (2006–2011)
          • Mercedes-Benz ML320 Bluetec 4Matic 3.0 V6 DIESEL (2007–2009)
          • Mercedes-Benz ML320 CDI 3.0 V6 DIESEL (2006–2008)
          • Mercedes-Benz ML500 Base 5.0 V8 GAS (2006–2007)
          • Mercedes-Benz GL320 CDI 3.0 V6 DIESEL (2007)
          • Mercedes-Benz ML350 4Matic 3.5 V6 GAS (2008–2009)
          • Mercedes-Benz ML550 Base 5.5 V8 GAS (2008–2009)

          This may also fit other applications. Please use the vehicle selector tool to verify fitment.

          Why Shop at eEuroparts.com?

          • Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
          • Exclusive Kits That Fitâ„¢ - complete repair solutions with no guesswork
          • Fitment Confidence: Our accurate cataloging ensures you get the right part the first time.
          • Fast, Reliable Shipping: Orders ship quickly from our U.S.-based warehouses.
          • Transparent Pricing: Competitive prices with no hidden fees or surprise charges.
          • Established Trust: Serving the European auto community since 2000.

          Frequently Asked Questions

          What does the Bilstein 44-156251 Air Suspension Strut do?

          The Bilstein Air Suspension Strut is designed to absorb shocks and vibrations from the road, ensuring a smooth and stable ride. It plays a critical role in maintaining vehicle handling and safety, especially under changing road conditions.

          How do I know if my Air Suspension Strut needs replacement?

          Key symptoms that indicate the need for replacement include excessive bouncing, a rough ride, uneven tire wear, and a noticeable drop in vehicle handling and stability.

          Can I install the Bilstein 44-156251 myself?

          Yes, the installation of the Bilstein 44-156251 is straightforward and can be performed by DIY enthusiasts. However, proper tools and precautions should be taken to ensure safety and correct installation.

          What are the symptoms of a faulty Air Suspension Strut?

          Common symptoms of a failing air suspension strut include excessive bouncing, poor handling, and a rough ride. If you experience these issues, it may indicate a problem with the strut, and it is advisable to get a professional evaluation.

          Why should I choose Bilstein for my Air Suspension Strut needs?

          Bilstein is known for its high-quality performance parts that enhance vehicle stability and handling. Order Bilstein 44-156251 today for a factory-correct replacement that restores safety and performance.

          Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.

            • eEuroparts SKU
              10239
            • Weight
              15.63 lbs
            • Dimensions (L x W x H)
              35.5 x 6.5 x 6 in
            • Barcode
              00651860654959
            • Manufacturer Part #
              44-156251
          • Brand
            Bilstein
          • Manufacturer
            Bilstein
          • MPN
            44-156251
          • Part Type
            Air Suspension Strut
          • Position
            Front
          • OE Part Numbers
            164 320 58 13 80, 164320581380, 164 320 43 13, 1643204313, 164 320 46 13, 1643204613, 164 320 60 13 80, 164320601380, 164 320 58 13, 1643205813, 164 320 60 13, 1643206013
          • Cross Reference Numbers
            44156251, F4-BL5-F625-H0, F4BL5F625H0, BL5-F625, BL5F625
          • Features
            California Proposition 65 : WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov
            Finish : Black Paint
            Internal Design : Monotube
            Lower Mount Type : Clevis
            Reservoir : Yes
            Series : B4 OE Replacement (Air)
            Spring Seat Included : No
            Title : Bilstein Shock Absorbers
            Upper Mount Type : Special
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2006Mercedes-BenzML500Base (5.0 V8 GAS)Notes: With Air Suspension
          2006Mercedes-BenzML3504Matic (3.5 V6 GAS)Notes: With Air Suspension
          2007Mercedes-BenzML3504Matic (3.5 V6 GAS)Front Spring: Air
          2007Mercedes-BenzML500Base (5.0 V8 GAS)Front Spring: Air
          2007Mercedes-BenzML320CDI (3.0 V6 DIESEL)Front Spring: Air
          2007Mercedes-BenzGL320CDI (3.0 V6 DIESEL)Notes: With Electronic Suspension
          2008Mercedes-BenzML320CDI (3.0 V6 DIESEL)Front Spring: Air
          2008Mercedes-BenzML3504Matic (3.5 V6 GAS)Front Spring: Air
          2008Mercedes-BenzML550Base (5.5 V8 GAS)Front Spring: Air
          2009Mercedes-BenzML550Base (5.5 V8 GAS)Front Spring: Air
          2009Mercedes-BenzML320Bluetec 4Matic (3.0 V6 DIESEL)Front Spring: Air
          2009Mercedes-BenzML350Base (3.5 V6 GAS)Front Spring: Air
          2009Mercedes-BenzML3504Matic (3.5 V6 GAS)Front Spring: Air
          2010Mercedes-BenzML350Bluetec 4Matic (3.0 V6 DIESEL)Front Spring: Air
          2010Mercedes-BenzML350Base (3.5 V6 GAS)Front Spring: Air
          2010Mercedes-BenzML3504Matic (3.5 V6 GAS)Front Spring: Air
          2010Mercedes-BenzML550Base (5.5 V8 GAS)Front Spring: Air
          2011Mercedes-BenzML350Bluetec 4Matic (3.0 V6 DIESEL)Front Spring: Air
          2011Mercedes-BenzML350Base (3.5 V6 GAS)Front Spring: Air
          2011Mercedes-BenzML3504Matic (3.5 V6 GAS)Front Spring: Air
          2011Mercedes-BenzML550Base (5.5 V8 GAS)Front Spring: Air
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          Warranty Overview

          At eEuroparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.

          Standard Warranty – Most Parts

          • Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.

          • Protection: Defects in materials or workmanship under normal personal use.

          • Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.

          • Exclusions:

            • Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)

            • Commercial, fleet, rideshare, off-road, or racing use

            • Improper installation, misuse, accidents, or modifications

          • Not Covered: Labor, shipping, towing, or incidental costs.

          Bison Performance Warranty – Our House Brand

          • Coverage: Limited Lifetime Warranty for as long as you own your vehicle.

          • Applies To: All products sold under the Bison Performance label.

          • Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.

          • Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).

          • What’s Included: Replacement of the defective product (labor and shipping excluded).

          Warranty Claim Requirements

          To keep claims fast and fair, we require:

          • Proof of purchase (invoice or order confirmation).

          • Photos or videos showing the defective part, order number, date, VIN, and odometer reading.

          • Diagnostic reports or part returns for non-visible issues may be requested.

          • Claims must be truthful, properly documented, and reflect normal consumer use.

          Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.

          For full details and exclusions, please see our complete Warranty Terms & Conditions.

          This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.

          Return Policy Overview

          Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
          To start a return, contact customer support via Chat or Contact Us.

          • Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)

          • Refunds: Issued to your original payment method within 3–5 business days after inspection

          • Exchanges: Not automatic — please return and reorder

          • Replacements: May be approved for incorrect or defective items reported within 7 days

          Not returnable:

          • Used or installed parts

          • Electrical components

          • Opened filter kits, gaskets, or contaminated items

          • Final sale or custom orders

          Important Notes:

          • Return shipping is your responsibility unless we made a verified error

          • Fitment is the customer’s responsibility (we can assist, but do not guarantee)

          • Country of origin may vary and is not grounds for return

          For complete details, please see our full Return Policy.


          This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.

          Fast, Reliable Shipping — Straight to Your Door

          We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.

          • We use trusted carriers like UPS, FedEx, and USPS.

          • Tracking info is emailed to you as soon as your order ships.

          • Delivery estimates at checkout are based on carrier data, but not guaranteed.

          Need help with a shipment?

          If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.

          For complete details, please see our full Shipping Policy.


          This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions, risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.

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