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Mann-Filter HU 721/3 x - Engine Oil Filter
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.
- BrandMann-Filter
- ManufacturerMann-Filter
- MPNHU 721/3 x
- Part TypeEngine Oil Filter
- Cross Reference NumbersHU7213x, 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
- FeaturesCalifornia 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 TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2012 | Mercedes-Benz | CL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2012 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2012 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2012 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2003 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2003 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance |
| 2013 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2013 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2013 | Mercedes-Benz | CL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2013 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2013 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2007 | Mercedes-Benz | SL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2007 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2007 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2007 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2007 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2024 | Mercedes-Benz | Maybach S680 | 4Matic (6.0 V12 GAS) | |
| 2018 | Mercedes-Benz | G65 AMG | Base (6.0 V12 GAS) | Notes: Recommended Part for Optimal Performance |
| 2018 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | Notes: Recommended Part for Optimal Performance |
| 2018 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | Notes: Recommended Part for Optimal Performance |
| 2016 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance |
| 2016 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance |
| 2016 | Mercedes-Benz | S600 | Base (6.0 V12 GAS) | Notes: Recommended Part for Optimal Performance |
| 2016 | Mercedes-Benz | Maybach S600 | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance |
| 2016 | Mercedes-Benz | G65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance |
| 2025 | Mercedes-Benz | Maybach S680 | 4Matic (6.0 V12 GAS) | |
| 2008 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2008 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2008 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2008 | Mercedes-Benz | SL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2008 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2008 | Mercedes-Benz | CL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2019 | Mercedes-Benz | Maybach S650 | Base (6.0 V12 GAS) | Notes: Recommended Part for Optimal Performance |
| 2019 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | |
| 2017 | Mercedes-Benz | Maybach S600 | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance |
| 2017 | Mercedes-Benz | G65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged |
| 2017 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged |
| 2017 | Mercedes-Benz | S600 | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance |
| 2017 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | Notes: Recommended Part for Optimal Performance |
| 2009 | Mercedes-Benz | SL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2009 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2009 | Mercedes-Benz | SL65 AMG | Black Series (6.0 V12 GAS) | Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2009 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2009 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2009 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2009 | Mercedes-Benz | CL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2020 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | |
| 2014 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance |
| 2014 | Mercedes-Benz | CL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance |
| 2014 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2010 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2010 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2010 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2010 | Mercedes-Benz | CL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2015 | Mercedes-Benz | S600 | Base (6.0 V12 GAS) | Notes: Recommended Part for Optimal Performance |
| 2015 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance |
| 2015 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance |
| 2022 | Mercedes-Benz | Maybach S680 | 4Matic (6.0 V12 GAS) | |
| 2011 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2011 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2011 | Mercedes-Benz | CL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2011 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2011 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2004 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2004 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance |
| 2004 | Mercedes-Benz | SL600 | Base (5.5 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2005 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2005 | Mercedes-Benz | CL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2005 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2005 | Mercedes-Benz | SL600 | Base (5.5 V12 GAS) | Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2005 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2006 | Mercedes-Benz | S65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2006 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2006 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2006 | Mercedes-Benz | CL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2006 | Mercedes-Benz | SL600 | Base (5.5 V12 GAS) | Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
| 2006 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | Aspiration: Turbocharged, Notes: Recommended Part for Optimal Performance, Synthetic Oil Application. Premium filter recommended |
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.











