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          NGK 5547 - Spark Plug

          MPN: 5547
          The NGK 5547 Spark Plug ensures reliable ignition for Audi and Volkswagen vehicles, enhancing fuel efficiency and overall engine performance.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $13.91
          In stock

          Product Overview

          The NGK Spark Plug 5547 is engineered to meet OEM standards, providing reliable ignition performance for your Audi and Volkswagen vehicles. With a pre-gap of 0.036 inches and premium laser platinum construction, this spark plug ensures optimal fuel efficiency and engine performance. Trusted by professionals, NGK spark plugs are designed to withstand high temperatures and pressures, ensuring longevity and consistent performance. Choose NGK 5547 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This NGK 5547 is equivalent to or replaces the following part numbers: PFR6W-TG, PFR6WTG, 5547.

          Vehicle Compatibility

          • Audi A8 Quattro 4.2 V8 (2007–2012)
          • Audi S5 4.2 V8 (2007–2012)
          • Audi A6 Quattro 4.2 V8 (2007–2012)
          • Audi S6 5.2 V10 (2007–2011)
          • Audi S8 5.2 V10 (2007–2012)
          • Audi Q7 4.2 V8 (2007–2012)
          • Volkswagen Touareg 4.2 V8 (2007–2009)

          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 NGK 5547 Spark Plug do?

          The NGK Spark Plug plays a crucial role in igniting the air-fuel mixture in your engine cylinders, facilitating combustion and enabling your vehicle to run efficiently. A well-functioning spark plug contributes to improved fuel efficiency, reduced emissions, and enhanced engine performance.

          How do I know if my Spark Plug needs replacement?

          Common signs that your spark plugs may need replacement include rough engine idling, difficulty starting the engine, poor fuel economy, and a decrease in engine power or acceleration. If you experience any of these symptoms, it may be time to check your spark plugs.

          Can I install the NGK 5547 myself?

          Yes, the installation of the NGK 5547 Spark Plug can be done as a DIY project, provided you have basic mechanical knowledge. Always ensure to follow the manufacturer’s guidelines and take necessary precautions to avoid damaging the engine.

          What are the symptoms of a faulty Spark Plug?

          Symptoms of a faulty spark plug may include engine misfires, decreased fuel efficiency, and difficulty in starting the vehicle. A malfunctioning spark plug can lead to drivability issues and may cause the check engine light to illuminate.

          Why should I choose NGK for my Spark Plug needs?

          NGK is a trusted brand known for its quality and reliability in the automotive industry. Order NGK 5547 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
              139069
            • Weight
              0.11 lbs
            • Manufacturer Part #
              5547
          • Brand
            NGK
          • Manufacturer
            NGK
          • MPN
            5547
          • Part Type
            Spark Plug
          • OE Part Numbers
            101 905 621 B, 101905621B, 101 905 621 A, 101905621A
          • Cross Reference Numbers
            4702, SK20BR11, 5547, K6RTJPP, 3471, 4504, IK20TT, PK20TT
          • Features
            Center Electrode Core Material : Copper
            Center Electrode Tip Material : Platinum
            Electrical Terminal Type : Non-Removable Nut
            Ground Configuration : Standard
            Ground Electrode Core Material : Copper
            Ground Electrode Quantity : 3
            Ground Electrode Tip Design : Standard
            Hex Size : 5/8
            Insulator Height : 50.50
            Manufacturer Heat Range : 6
            Part Number : PFR6W-TG
            Pre-Gap Size : .036
            Reach : .75
            Resistance : 1000.0
            Seat Type : Flat
            Stock Number : 5547
            Thread Diameter : 14.00
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2011AudiA6 QuattroBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2011AudiS5Base (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2011AudiS6Base (5.2 V10 GAS)Notes: Gap 0.032", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2011AudiA8 QuattroBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2011AudiA8 QuattroL (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2012AudiA8 QuattroBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2012AudiA8 QuattroL (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2012AudiS5Base (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2007AudiQ7Base (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2007AudiQ7Premium (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2007AudiS6Base (5.2 V10 GAS)Notes: Gap 0.032", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2007AudiS8Base (5.2 V10 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2007AudiA6 QuattroBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2007AudiA8 QuattroBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2007AudiA8 QuattroL (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2007VolkswagenTouaregBase (4.2 V8 GAS)Engine: BAR, Notes: Gap 0.036", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval
          2008VolkswagenTouaregBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval
          2008AudiA6 QuattroBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2008AudiS6Base (5.2 V10 GAS)Notes: Gap 0.032", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2008AudiS8Base (5.2 V10 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2008AudiA8 QuattroBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2008AudiA8 QuattroL (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2008AudiQ7Premium (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2008AudiS5Base (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2009AudiA6 QuattroBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2009AudiS6Base (5.2 V10 GAS)Notes: Gap 0.032", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2009AudiA8 QuattroBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2009AudiA8 QuattroL (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2009AudiS8Base (5.2 V10 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2009AudiQ7Premium (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2009AudiS5Base (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2009VolkswagenTouaregBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 40,000 mi OE Mfr Recommended Service Interval
          2010AudiA6 QuattroBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2010AudiA8 QuattroBase (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2010AudiA8 QuattroL (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2010AudiQ7Prestige (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2010AudiS5Base (4.2 V8 GAS)Notes: Gap 0.036", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
          2010AudiS6Base (5.2 V10 GAS)Notes: Gap 0.032", Actual OE Manufacturer, 55,000 mi OE Mfr Recommended Service Interval
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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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