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          Mann-Filter HU 721/3 x - Engine Oil Filter

          MPN: HU 721/3 x
          The Mann-Filter HU 721/3 x Engine Oil Filter ensures your Mercedes-Benz runs smoothly by removing harmful contaminants from the engine oil. Designed for OEM precision and longevity.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $9.41
          In stock

          Product Overview

          The Mann-Filter HU 721/3 x Engine Oil Filter is a critical component for maintaining the performance and longevity of your Mercedes-Benz. This premium-grade oil filter is engineered to provide superior filtration, ensuring that your engine remains free from harmful contaminants. Designed to meet OEM standards, the Mann-Filter is trusted by professionals and DIY enthusiasts alike. Choose Mann-Filter HU 721/3 x for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Mann-Filter HU 721/3 x is equivalent to or replaces the following part numbers: HU 721/3 x, 2751800009, 2751840025.

          Vehicle Compatibility

          • Mercedes-Benz S65 AMG 6.0 V12 (2010–2020)
          • Mercedes-Benz SL65 AMG 6.0 V12 (2008–2020)
          • Mercedes-Benz S600 5.5 V12 (2010–2020)
          • Mercedes-Benz CL600 5.5 V12 (2004–2013)
          • Mercedes-Benz CL65 AMG 6.0 V12 (2004–2014)
          • Mercedes-Benz Maybach S650 6.0 V12 (2019–2020)
          • Mercedes-Benz G65 AMG 6.0 V12 (2016–2019)
          • Mercedes-Benz SL600 5.5 V12 (2004–2009)
          • Mercedes-Benz S600 5.5 V12 (2005–2015)
          • Mercedes-Benz Maybach S600 6.0 V12 (2016–2017)

          This may also fits 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 Mann-Filter HU 721/3 x Engine Oil Filter do?

          The Mann-Filter HU 721/3 x Engine Oil Filter is designed to remove contaminants from engine oil, ensuring that your engine stays clean and operates efficiently. It prevents dirt and debris from circulating through the engine, thereby protecting vital components and extending the life of your vehicle.

          How do I know if my Engine Oil Filter needs replacement?

          Signs that your oil filter may need replacement include engine oil leaks, decreased engine performance, oil pressure warning lights, and unusual engine noises. Regular maintenance and oil changes can help prevent these issues.

          Can I install the Mann-Filter HU 721/3 x myself?

          Yes, the Mann-Filter HU 721/3 x can be installed by DIY enthusiasts. However, ensure you follow proper procedures to avoid potential issues during installation.

          What are the symptoms of a faulty Engine Oil Filter?

          Common symptoms of a failing oil filter include engine oil leaks, poor engine performance, and increased engine noise. If you experience these issues, it is advisable to check the oil filter and replace it if necessary.

          Why should I choose Mann-Filter for my Engine Oil Filter needs?

          Mann-Filter is a trusted brand known for quality and reliability in the European automotive market. Order Mann-Filter HU 721/3 x 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
              101010
            • Weight
              0.2 lbs
            • Dimensions (L x W x H)
              2.64 x 2.64 x 5.43 in
            • Manufacturer Part #
              HU 721/3 x
          • Brand
            Mann-Filter
          • Manufacturer
            Mann-Filter
          • MPN
            HU 721/3 x
          • Part Type
            Engine Oil Filter
          • Cross Reference Numbers
            HU7213x, 275 184 00 25, 2751840025, LF614, L35544, HU 721/3 X, HU7213X, 7198, DO973, OE 677/2, OE6772, 57198, CF5544, 275 180 00 09, 2751800009, 84198, WP973, CF5534, HU 721/3 x, X5544, PG5544, PL5544
          • Features
            California Proposition 65 : “WARNING: This product contains a chemical known to the State of California to cause cancer.”
            Class : W
            Duty Type : LD
            Height : 5.314
            Inner Diameter Bottom : 1.22
            Media Material : Cellulose
            Outer Diameter Bottom : 2.499
            Outer Diameter Top : 2.499
            Style : Cartridge Lube Metal Free Filt
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2012Mercedes-BenzCL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2012Mercedes-BenzCL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2012Mercedes-BenzS600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2012Mercedes-BenzS65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2003Mercedes-BenzCL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2003Mercedes-BenzS600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance
          2013Mercedes-BenzSL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2013Mercedes-BenzCL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2013Mercedes-BenzCL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2013Mercedes-BenzS600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2013Mercedes-BenzS65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2007Mercedes-BenzSL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2007Mercedes-BenzSL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2007Mercedes-BenzS600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2007Mercedes-BenzS65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2007Mercedes-BenzCL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2024Mercedes-BenzMaybach S6804Matic (6.0 V12 GAS)
          2018Mercedes-BenzG65 AMGBase (6.0 V12 GAS)Notes: Recommended Part for Optimal Performance
          2018Mercedes-BenzS65 AMGBase (6.0 V12 GAS)Notes: Recommended Part for Optimal Performance
          2018Mercedes-BenzSL65 AMGBase (6.0 V12 GAS)Notes: Recommended Part for Optimal Performance
          2016Mercedes-BenzSL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance
          2016Mercedes-BenzS65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance
          2016Mercedes-BenzS600Base (6.0 V12 GAS)Notes: Recommended Part for Optimal Performance
          2016Mercedes-BenzMaybach S600Base (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance
          2016Mercedes-BenzG65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance
          2025Mercedes-BenzMaybach S6804Matic (6.0 V12 GAS)
          2008Mercedes-BenzCL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2008Mercedes-BenzS600Base (5.5 V12 GAS)Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2008Mercedes-BenzS65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2008Mercedes-BenzSL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2008Mercedes-BenzSL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2008Mercedes-BenzCL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2019Mercedes-BenzMaybach S650Base (6.0 V12 GAS)Notes: Recommended Part for Optimal Performance
          2019Mercedes-BenzS65 AMGBase (6.0 V12 GAS)
          2017Mercedes-BenzMaybach S600Base (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance
          2017Mercedes-BenzG65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged
          2017Mercedes-BenzSL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged
          2017Mercedes-BenzS600Base (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance
          2017Mercedes-BenzS65 AMGBase (6.0 V12 GAS)Notes: Recommended Part for Optimal Performance
          2009Mercedes-BenzSL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2009Mercedes-BenzSL65 AMGBase (6.0 V12 GAS)Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2009Mercedes-BenzSL65 AMGBlack Series (6.0 V12 GAS)Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2009Mercedes-BenzCL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2009Mercedes-BenzS600Base (5.5 V12 GAS)Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2009Mercedes-BenzS65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2009Mercedes-BenzCL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2020Mercedes-BenzS65 AMGBase (6.0 V12 GAS)
          2014Mercedes-BenzSL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance
          2014Mercedes-BenzCL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance
          2014Mercedes-BenzCL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2010Mercedes-BenzS600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2010Mercedes-BenzS65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2010Mercedes-BenzCL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2010Mercedes-BenzCL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2015Mercedes-BenzS600Base (6.0 V12 GAS)Notes: Recommended Part for Optimal Performance
          2015Mercedes-BenzSL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance
          2015Mercedes-BenzS65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance
          2022Mercedes-BenzMaybach S6804Matic (6.0 V12 GAS)
          2011Mercedes-BenzSL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2011Mercedes-BenzCL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2011Mercedes-BenzCL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2011Mercedes-BenzS600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2011Mercedes-BenzS65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2004Mercedes-BenzCL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2004Mercedes-BenzS600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance
          2004Mercedes-BenzSL600Base (5.5 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2005Mercedes-BenzCL600Base (5.5 V12 GAS)Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2005Mercedes-BenzCL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2005Mercedes-BenzS600Base (5.5 V12 GAS)Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2005Mercedes-BenzSL600Base (5.5 V12 GAS)Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2005Mercedes-BenzSL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2006Mercedes-BenzS65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2006Mercedes-BenzS600Base (5.5 V12 GAS)Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2006Mercedes-BenzCL600Base (5.5 V12 GAS)Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2006Mercedes-BenzCL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2006Mercedes-BenzSL600Base (5.5 V12 GAS)Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
          2006Mercedes-BenzSL65 AMGBase (6.0 V12 GAS)Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended
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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.

          Product questions

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