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          Genuine BMW 51748056069 - Radiator Support Air Duct (Front Lower Center)

          MPN: 51748056069
          The Genuine BMW 51748056069 Radiator Support Air Duct enhances airflow to your engine, ensuring efficient cooling. Designed for precise fit and reliable performance.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $112.64
          In stock

          Product Overview

          The Genuine BMW Radiator Support Air Duct 51748056069 is a vital component designed to optimize airflow to your vehicle's engine, ensuring efficient cooling and optimal performance. Crafted to meet OEM specifications, this air duct is engineered for durability and reliability, making it an essential part for maintaining the health of your BMW. Trust in the premium quality of Genuine BMW parts, designed with precision for your vehicle. Choose Genuine BMW 51748056069 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Genuine BMW 51748056069 is equivalent to or replaces the following part numbers: 51 74 8 056 069, 51748056069.

          Vehicle Compatibility

          • BMW 640i Gran Coupe 3.0 L6 (2013–2018)
          • BMW 640i xDrive Gran Coupe 3.0 L6 (2013–2018)
          • BMW 650i Gran Coupe 4.4 V8 (2013–2018)
          • BMW 650i xDrive Gran Coupe 4.4 V8 (2013–2018)
          • BMW 640i 3.0 L6 (2014–2017)
          • BMW 650i 4.4 V8 (2014–2017)
          • BMW 640i xDrive 3.0 L6 (2014–2017)
          • BMW 650i xDrive 4.4 V8 (2014–2017)
          • BMW M6 Gran Coupe 4.4 V8 (2016–2017)
          • BMW 640i 3.0 L6 (2012–2015)

          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 Fit™ - 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 Genuine BMW 51748056069 Radiator Support Air Duct do?

          The Radiator Support Air Duct directs airflow to the radiator, enhancing cooling efficiency for the engine. A well-functioning air duct helps maintain optimal engine temperatures, preventing overheating and ensuring peak performance.

          How do I know if my Radiator Support Air Duct needs replacement?

          Key symptoms indicating that the radiator support air duct may need replacement include overheating engine temperatures, reduced engine performance, or visible cracks or damage to the duct itself. Regular inspections can help prevent issues before they escalate.

          Can I install the Genuine BMW 51748056069 myself?

          Yes, you can install the Genuine BMW 51748056069 yourself if you have basic automotive knowledge. However, ensure to take necessary precautions and consult your vehicle's repair manual for specific installation instructions.

          What are the symptoms of a faulty Radiator Support Air Duct?

          Common symptoms of a faulty radiator support air duct include engine overheating, decreased engine performance, or unusual noises from the engine bay. While this part typically does not have specific DTC codes associated with it, issues related to engine overheating may lead to codes indicating a problem with the cooling system.

          Why should I choose Genuine BMW for my Radiator Support Air Duct needs?

          Genuine BMW parts are known for their quality and precision fit. Order Genuine BMW 51748056069 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
              946171
            • Weight
              0.9 lbs
            • Dimensions (L x W x H)
              20.488 x 3.2733 x 11.674 in
            • Manufacturer Part #
              51748056069
          • Brand
            Genuine BMW
          • Manufacturer
            Genuine BMW
          • MPN
            51748056069
          • Part Type
            Radiator Support Air Duct
          • Position
            Front Lower Center
          • OE Part Numbers
            51 74 8 056 069, 51748056069
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2012BMW650iBase (4.4 V8 GAS)Notes: w/o M6
          2012BMW640iBase (3.0 L6 GAS)Notes: w/o M6
          2012BMW650i xDriveBase (4.4 V8 GAS)Notes: w/o M6
          2013BMW640i Gran CoupeBase (3.0 L6 GAS)Notes: w/o M6
          2013BMW650iBase (4.4 V8 GAS)Notes: w/o M6
          2013BMW650i Gran CoupeBase (4.4 V8 GAS)Notes: w/o M6
          2013BMW650i xDriveBase (4.4 V8 GAS)Notes: w/o M6
          2013BMW640iBase (3.0 L6 GAS)Notes: w/o M6
          2013BMW650i xDrive Gran CoupeBase (4.4 V8 GAS)Notes: w/o M6
          2014BMW640i Gran CoupeBase (3.0 L6 GAS)Notes: w/o M6
          2014BMW640iBase (3.0 L6 GAS)Notes: w/o M6
          2014BMW650iBase (4.4 V8 GAS)Notes: w/o M6
          2014BMW650i Gran CoupeBase (4.4 V8 GAS)Notes: w/o M6
          2014BMW650i xDriveBase (4.4 V8 GAS)Notes: w/o M6
          2014BMW650i xDrive Gran CoupeBase (4.4 V8 GAS)Notes: w/o M6
          2014BMW640i xDriveBase (3.0 L6 GAS)Notes: w/o M6
          2014BMW640i xDrive Gran CoupeBase (3.0 L6 GAS)Notes: w/o M6
          2015BMW640i Gran CoupeBase (3.0 L6 GAS)Notes: w/o M6
          2015BMW640i xDrive Gran CoupeBase (3.0 L6 GAS)Notes: w/o M6
          2015BMW650iBase (4.4 V8 GAS)Notes: w/o M6
          2015BMW650i Gran CoupeBase (4.4 V8 GAS)Notes: w/o M6
          2015BMW650i xDriveBase (4.4 V8 GAS)Notes: w/o M6
          2015BMW650i xDrive Gran CoupeBase (4.4 V8 GAS)Notes: w/o M6
          2015BMW640iBase (3.0 L6 GAS)Notes: w/o M6
          2015BMW640i xDriveBase (3.0 L6 GAS)Notes: w/o M6
          2016BMW640iBase (3.0 L6 GAS)Notes: W/O M6, M package only
          2016BMW640i Gran CoupeBase (3.0 L6 GAS)
          2016BMW640i xDriveBase (3.0 L6 GAS)Notes: W/O M6, M package only
          2016BMW640i xDrive Gran CoupeBase (3.0 L6 GAS)
          2016BMW650iBase (4.4 V8 GAS)Notes: W/O M6, M package only
          2016BMW650i Gran CoupeBase (4.4 V8 GAS)
          2016BMW650i xDriveBase (4.4 V8 GAS)Notes: W/O M6, M package only
          2016BMW650i xDrive Gran CoupeBase (4.4 V8 GAS)
          2016BMWM6 Gran CoupeBase (4.4 V8 GAS)
          2017BMW640iBase (3.0 L6 GAS)Notes: W/O M6, M package only
          2017BMW640i Gran CoupeBase (3.0 L6 GAS)
          2017BMW640i xDriveBase (3.0 L6 GAS)Notes: W/O M6, M package only
          2017BMW640i xDrive Gran CoupeBase (3.0 L6 GAS)
          2017BMW650iBase (4.4 V8 GAS)Notes: W/O M6, M package only
          2017BMW650i Gran CoupeBase (4.4 V8 GAS)
          2017BMW650i xDriveBase (4.4 V8 GAS)Notes: W/O M6, M package only
          2017BMW650i xDrive Gran CoupeBase (4.4 V8 GAS)
          2017BMWM6 Gran CoupeBase (4.4 V8 GAS)
          2018BMW650i Gran CoupeBase (4.4 V8 GAS)
          2018BMW650i xDrive Gran CoupeBase (4.4 V8 GAS)
          2018BMW640i Gran CoupeBase (3.0 L6 GAS)
          2018BMW640i xDrive Gran CoupeBase (3.0 L6 GAS)
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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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