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Sachs 5447999 - Suspension Strut and Coil Spring Kit (Front)
Product Overview
The Sachs 5447999-Kit is designed to support suspension repairs and maintenance for various vehicle applications. This kit provides an OE-level, all-in-one set of matched components that contribute to the overall suspension performance. With precision fitment and reliability, the kit addresses common symptoms such as poor handling, excessive noise, and uneven tire wear. The Sachs 5447999-Kit includes components necessary for front suspension repairs, making it a practical choice for addressing suspension-related issues.
Kit Contents
- 1 x Sachs - (314 878) Front Driver Left Suspension Strut
- 1 x Sachs - (314 879) Front Passenger Right Suspension Strut
- 2 x Lesjofors - (4008519) Front Coil Springs
Cross Reference Numbers
This Sachs 5447999-Kit is equivalent to or replaces the following part numbers: 314 878, 314 879, 4008519.
Vehicle Compatibility
- BMW X3 3.0 (2011–2017)
This kit also fits other applications. Please use the vehicle selector tool to verify compatibility before purchase.
Why Shop at eEuroparts.com?
- Expertise You Can Trust: Over 25 years specializing exclusively in European vehicles.
- Kits That Fit™ – complete, curated repair solutions with zero guesswork.
- Fitment Confidence: Industry-leading catalog accuracy ensures you get the right part the first time.
- Fast, Reliable Delivery: Most orders ship same or next business day from our U.S. warehouses.
- Transparent, Honest Pricing: Competitive prices with no hidden fees ever.
- Trusted Since 2000: Proudly serving the European car community for over two decades.
Frequently Asked Questions
What symptoms indicate a need for suspension strut replacement?
Common symptoms include excessive bouncing, a rough ride, or uneven tire wear, which can indicate worn struts.
How do I know if my coil springs need replacement?
Signs of coil spring wear include sagging on one side of the vehicle or a noticeable drop in ride height.
Are these struts compatible with my 2012 BMW X3?
The Sachs 5447999-Kit is specifically designed for the BMW X3 3.0 from 2011 to 2017. Please verify compatibility using the vehicle selector tool.
What tools are required to install this suspension kit?
Installation typically requires basic hand tools, including a socket set and wrenches. Ensure you have the proper tools for strut replacement.
What is the expected lifespan of suspension struts?
Suspension struts generally last around 50,000 to 100,000 miles, but this can vary based on driving conditions and vehicle maintenance.
Order Sachs 5447999-Kit today to support a complete, well-matched repair for your vehicle.
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.
- BrandSachs
- ManufacturerSachs
- MPN5447999-Kit
- Part TypeSuspension Strut and Coil Spring Kit
- PositionFront
- Kit Content1 x Sachs - (314 878) Front Driver Left Suspension Strut
1 x Sachs - (314 879) Front Passenger Right Suspension Strut
2 x Lesjofors - (4008519) Front Coil Springs - OE Part Numbers31336787136
- Cross Reference Numbers5447999Kit
- FeaturesCalifornia Proposition 65 Required : (Front Driver Left Suspension Strut) Y
California Proposition 65 Required : (Front Passenger Right Suspension Strut) Y
California Proposition 65 Text : (Front Driver Left Suspension Strut) WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
California Proposition 65 Text : (Front Passenger Right Suspension Strut) WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Seat Included : (Front Coil Springs) No
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2015 | BMW | X3 | xDrive35i (3.0 L6 GAS) | Aspiration: Turbocharged, Chassis: F25, Notes: Design Version Twin-tube Design - Excluding Electronic Controlled Suspension - Excluding Sport Package (Suspension Strut Notes) |
| 2012 | BMW | X3 | xDrive35i (3.0 L6 GAS) | Aspiration: Turbocharged, Chassis: F25, Notes: Design Version Twin-tube Design - Excluding Electronic Controlled Suspension - Excluding Sport Package (Suspension Strut Notes) |
| 2014 | BMW | X3 | xDrive35i (3.0 L6 GAS) | Aspiration: Turbocharged, Chassis: F25, Notes: Design Version Twin-tube Design - Excluding Electronic Controlled Suspension - Excluding Sport Package (Suspension Strut Notes) |
| 2017 | BMW | X3 | xDrive35i (3.0 L6 GAS) | Aspiration: Turbocharged, Chassis: F25, Notes: Design Version Twin-tube Design - Excluding Electronic Controlled Suspension - Excluding Sport Package (Suspension Strut Notes) |
| 2011 | BMW | X3 | xDrive35i (3.0 L6 GAS) | Aspiration: Turbocharged, Chassis: F25, Notes: Design Version Twin-tube Design - Excluding Electronic Controlled Suspension - Excluding Sport Package (Suspension Strut Notes) |
| 2016 | BMW | X3 | xDrive35i (3.0 L6 GAS) | Aspiration: Turbocharged, Chassis: F25, Notes: Design Version Twin-tube Design - Excluding Electronic Controlled Suspension - Excluding Sport Package (Suspension Strut Notes) |
| 2013 | BMW | X3 | xDrive35i (3.0 L6 GAS) | Aspiration: Turbocharged, Chassis: F25, Notes: Design Version Twin-tube Design - Excluding Electronic Controlled Suspension - Excluding Sport Package (Suspension Strut Notes) |
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.




