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Bilstein 44-191825 - Air Suspension Strut (Rear Left)
Product Overview
The Bilstein Air Suspension Strut part number 44-191825 is a premium-grade replacement component meticulously engineered to meet OEM standards for select BMW models. Designed specifically for the rear driver side and compatible with vehicles equipped with self-leveling suspension, this strut enhances ride comfort and vehicle handling, making it an essential upgrade for any BMW owner seeking improved performance. Choose Bilstein 44-191825 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Bilstein 44-191825 is equivalent to or replaces the following part numbers: 37106778799, 37126758573, 37126785537, BL5-H796, F4-BL5-H796-H0.
Vehicle Compatibility
- BMW 745i 4.4 V8 (2002–2005)
- BMW 745Li 4.4 V8 (2002–2005)
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 44-191825 Air Suspension Strut do?
The Bilstein Air Suspension Strut plays a crucial role in the vehicle's suspension system by providing support and stability, ensuring a comfortable ride while minimizing body roll during cornering and maintaining optimal tire contact with the road.
How do I know if my Air Suspension Strut needs replacement?
Common signs that the air strut may need replacement include a decrease in ride quality, excessive bouncing, noticeable noise from the suspension, and uneven tire wear. If you notice these symptoms, it may be time to replace your Bilstein 44-191825 air suspension strut.
Can I install the Bilstein 44-191825 myself?
Yes, installation of the Bilstein 44-191825 is straightforward, allowing both professional technicians and DIY enthusiasts to replace the strut with ease.
What are the symptoms of a faulty Air Suspension Strut?
Symptoms of a faulty air suspension strut include poor ride quality, excessive bouncing, and noise from the suspension system. If you experience these issues, it is advisable to investigate further and consider the Bilstein 44-191825 as a replacement.
Why should I choose Bilstein for my Air Suspension Strut needs?
Bilstein is known for its commitment to quality and performance in the automotive industry. Order Bilstein 44-191825 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.
- BrandBilstein
- ManufacturerBilstein
- MPN44-191825
- Part TypeAir Suspension Strut
- PositionRear Left
- OE Part Numbers37 12 6 758 573, 37126758573, 37 12 6 785 537, 37126785537, 37 10 6 778 799, 37106778799
- Cross Reference Numbers44191825, F4-BL5-H796-H0, F4BL5H796H0, BL5-H796, BL5H796
- FeaturesCalifornia Proposition 65 : WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov
Finish : Black Paint
Internal Design : Monotube
Lower Mount Type : Eye 15.5mm
Series : B4 OE Replacement (Air)
Title : Bilstein Shock Absorbers
Upper Mount Type : Multiple Studs
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2002 | BMW | 745i | Base (4.4 V8 GAS) | Rear Spring: Air, Notes: With Self-Leveling Rear Suspension without Electronic Suspension |
| 2002 | BMW | 745Li | Base (4.4 V8 GAS) | Rear Spring: Air, Notes: With Self-Leveling Rear Suspension without Electronic Suspension |
| 2003 | BMW | 745i | Base (4.4 V8 GAS) | Rear Spring: Air, Notes: With Self-Leveling Rear Suspension without Electronic Suspension |
| 2003 | BMW | 745Li | Base (4.4 V8 GAS) | Rear Spring: Air, Notes: With Self-Leveling Rear Suspension without Electronic Suspension |
| 2004 | BMW | 745Li | Base (4.4 V8 GAS) | Rear Spring: Air, Notes: With Self-Leveling Rear Suspension without Electronic Suspension |
| 2004 | BMW | 745i | Base (4.4 V8 GAS) | Rear Spring: Air, Notes: With Self-Leveling Rear Suspension without Electronic Suspension |
| 2005 | BMW | 745i | Base (4.4 V8 GAS) | Rear Spring: Air, Notes: With Self-Leveling Rear Suspension without Electronic Suspension |
| 2005 | BMW | 745Li | Base (4.4 V8 GAS) | Rear Spring: Air, Notes: With Self-Leveling Rear Suspension without Electronic Suspension |
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.





