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Arnott Industries AS-2978 - Air Suspension Strut (Rear Right)
Product Overview
Upgrade your BMW's suspension with the premium-quality Arnott Industries Air Suspension Strut Assembly AS-2978, designed specifically for the rear passenger side of select models with Electronic Damping Control (EDC). This brand new air strut serves as a direct replacement for the factory air struts, ensuring a perfect fit and optimal performance. Engineered to OEM standards, this assembly features a heavy-duty ContiTech air bladder and a larger piston to provide exceptional ride quality and stability. Assembled in the USA, it reflects Arnott's commitment to superior craftsmanship and reliability. Choose Arnott Industries AS-2978 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Arnott Industries AS-2978 is equivalent to or replaces the following part numbers: 37106778798, 37126758580, 37126758582, 37126767128, 37126785536.
Vehicle Compatibility
- BMW 750i 4.8 V8 (2002–2008)
- BMW 750Li 4.8 V8 (2002–2008)
- BMW 760i 6.0 V12 (2006–2008)
- BMW 760Li 6.0 V12 (2002–2008)
- BMW 745i 4.4 V8 (2002–2005)
- BMW 745Li 4.4 V8 (2002–2005)
- BMW 760Li 6.0 V12 (2004–2005)
- BMW 760i 6.0 V12 (2004–2005)
- BMW 745Li 4.4 V8 (2004–2005)
- BMW 745i 4.4 V8 (2004–2005)
This may also fit other applications. Please use the vehicle selector tool to verify fitment.
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- 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.
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- Established Trust: Serving the European auto community since 2000.
Frequently Asked Questions
What does the Arnott Industries AS-2978 Air Suspension Strut do?
The BMW Air Strut Assembly AS-2978 is a critical component of the vehicle's suspension system, designed to provide a smooth and comfortable ride by adjusting to various driving conditions. It supports the weight of the vehicle and absorbs shocks from the road.
How do I know if my Air Suspension Strut needs replacement?
Common signs that the air strut may need replacement include uneven tire wear, a rough ride, unusual noises when driving over bumps, and warning lights on the dashboard related to suspension issues.
Can I install the Arnott Industries AS-2978 myself?
Yes, the Arnott Industries AS-2978 can be installed as a DIY project; however, ensure you have the proper tools and follow safety precautions as air suspension systems can be complex.
What are the symptoms of a faulty Air Suspension Strut?
Symptoms of a faulty air strut may include a bumpy ride, excessive body roll, and uneven ride height. If you experience these issues, it is advisable to inspect the air suspension system for potential failures.
Why should I choose Arnott Industries for my Air Suspension Strut needs?
Arnott Industries is known for its commitment to quality and reliability. Order Arnott Industries AS-2978 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.
- BrandArnott Industries
- ManufacturerArnott Industries
- MPNAS-2978
- Part TypeAir Suspension Strut
- PositionRear Right
- OE Part Numbers37126758580, 37126758582, 44-219222, 44219222, 37126785536, 37126767128, 37106778798
- Cross Reference NumbersAS2978
- FeaturesAdjustable : No
Adjustable Damping : No
Air Adjustable : Yes
Air Bladder : Yes
Air Bladder Material : Rubber
Air Ride Suspension : Yes
Bearing Plate Included : No
Body End Measuring Point : Center Eye
Boot Color : Black
Boot/dust Shield Included : Yes
California Proposition 65 : N/A
Coil Over Springs Included : N/A
Compressed Length : 366
Contents : Air Shock Assembly
Dust Shield Material : N/A
Extended Length : 543
Gas Charged : Yes
Grade Type : Standard
Heavy Duty Crimping Rings : Yes
Internal Construction Type : Monotube
Internal Damper Type : Hydraulic
Lower Mount Type : Loop/Eyelet
Lower Mounting Isolator Included : No
Mounting Hardware Included : No
Progressive Spring Rate : Progressive
Protective Aluminum Can : Yes
Shock Absorber Rod End Measuring Point : Shoulder of Stud
Shock Spring Assisted : Yes
Shock/strut Design : Monotube
Spring Isolators Included : Yes
Spring Rate Type : Progressive
Spring Seat Included : No
Springs Included : Yes
Travel Length : 177.01259999999999
Upper Mount Type : Stud
Upper Mounting Isolator Included : Yes
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2003 | BMW | 745Li | Base (4.4 V8 GAS) | Notes: w/Electronic Damper Control (EDC) |
| 2003 | BMW | 745i | Base (4.4 V8 GAS) | Notes: w/Electronic Damper Control (EDC) |
| 2003 | BMW | 760Li | Base (6.0 V12 GAS) | |
| 2004 | BMW | 745i | Base (4.4 V8 GAS) | Notes: w/Electronic Damper Control (EDC) |
| 2004 | BMW | 745Li | Base (4.4 V8 GAS) | Notes: w/Electronic Damper Control (EDC) |
| 2004 | BMW | 760i | Base (6.0 V12 GAS) | |
| 2004 | BMW | 760Li | Base (6.0 V12 GAS) | |
| 2006 | BMW | 750i | Base (4.8 V8 GAS) | |
| 2006 | BMW | 760Li | Base (6.0 V12 GAS) | |
| 2006 | BMW | 750Li | Base (4.8 V8 GAS) | |
| 2006 | BMW | 760i | Base (6.0 V12 GAS) | |
| 2008 | BMW | 760Li | Base (6.0 V12 GAS) | |
| 2008 | BMW | 750Li | Base (4.8 V8 GAS) | |
| 2008 | BMW | Alpina B7 | Base (4.4 V8 GAS) | |
| 2008 | BMW | 750i | Base (4.8 V8 GAS) | |
| 2005 | BMW | 745i | Base (4.4 V8 GAS) | Notes: w/Electronic Damper Control (EDC) |
| 2005 | BMW | 760Li | Base (6.0 V12 GAS) | |
| 2005 | BMW | 745Li | Base (4.4 V8 GAS) | Notes: w/Electronic Damper Control (EDC) |
| 2005 | BMW | 760i | Base (6.0 V12 GAS) | |
| 2007 | BMW | 750Li | Base (4.8 V8 GAS) | |
| 2007 | BMW | 750i | Base (4.8 V8 GAS) | |
| 2007 | BMW | Alpina B7 | Base (4.4 V8 GAS) | |
| 2007 | BMW | 760Li | Base (6.0 V12 GAS) | |
| 2002 | BMW | 745i | Base (4.4 V8 GAS) | Notes: w/Electronic Damper Control (EDC) |
| 2002 | BMW | 745Li | Base (4.4 V8 GAS) | Notes: w/Electronic Damper Control (EDC) |
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.














