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          Bosch P3740WS - Cabin Air Filter

          MPN: P3740WS
          The Bosch P3740WS Cabin Air Filter ensures clean air in your vehicle by filtering dust and pollutants. Designed to meet OEM standards for optimal performance.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $10.66
          In stock

          Product Overview

          The Bosch Cabin Air Filter P3740WS is engineered to meet OEM standards, providing premium-grade filtration for your Audi and Volkswagen vehicles. This high-quality filter is designed to protect you and your passengers by filtering out harmful airborne particles, ensuring that the air you breathe inside your car is clean and fresh. With the added benefit of activated charcoal, the filter effectively traps odors and pollutants, enhancing the comfort and quality of your driving experience. Choose Bosch P3740WS for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Bosch P3740WS is equivalent to or replaces the following part numbers: 8A0819439, 8A0819439A.

          Vehicle Compatibility

          • Audi S4 2.7 V6 (2001–2002)
          • Audi A4 1.8 L4 (1999–2001)
          • Audi A4 2.8 V6 (1998–2001)
          • Audi A4 Quattro 1.8 L4 (1999–2001)
          • Audi A4 Quattro 2.8 V6 (1998–2001)
          • Volkswagen Passat 1.8 L4 (1999–2001)
          • Volkswagen Passat 2.8 V6 (1998–2001)
          • Audi Cabriolet 2.8 V6 (1998–2000)
          • Audi 90 2.8 V6 (1995–1997)
          • Audi 90 Quattro 2.8 V6 (1995–1997)

          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 Bosch P3740WS Cabin Air Filter do?

          The cabin air filter plays a crucial role in maintaining the quality of air inside your vehicle. It filters out dust, pollen, and other airborne contaminants, ensuring that the air circulated through the HVAC system is clean and safe for you and your passengers.

          How do I know if my Cabin Air Filter needs replacement?

          Common symptoms indicating that your cabin air filter may need replacement include unpleasant odors coming from the HVAC system, reduced airflow from the air vents, increased dust or debris in the cabin, and allergies worsening while driving.

          Can I install the Bosch P3740WS myself?

          Yes, the Bosch P3740WS can be installed as a DIY project. However, ensure you follow the vehicle's service manual for instructions and take necessary precautions to avoid any damage to the HVAC system.

          What are the symptoms of a faulty Cabin Air Filter?

          Symptoms of a faulty cabin air filter may include unpleasant odors emanating from the HVAC system, decreased airflow from the vents, excessive dust accumulation inside the vehicle, and an increase in allergy symptoms while driving.

          Why should I choose Bosch for my Cabin Air Filter needs?

          Choose Bosch for your cabin air filter needs due to its reputation for quality and reliability. Order Bosch P3740WS 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
              246335
            • Weight
              1.3977 lbs
            • Dimensions (L x W x H)
              6.1024 x 2.0866 x 16.8504 in
            • Barcode
              00028851712040
            • Manufacturer Part #
              P3740WS
          • Brand
            Bosch
          • Manufacturer
            Bosch
          • MPN
            P3740WS
          • Part Type
            Cabin Air Filter
          • OE Part Numbers
            8A0819439A, 8A0819439
          • Features
            Activated Carbon Pre-Filter For Odor Removal : No
            Automotive Item Type : OEM Standard Part
            Automotive Material : Foam
            Cabin Filter Type : Particulate
            Cases Per Pallet (ORLY) : 84
            Filter Media Material : Spunbound Polyester Along With Synthetic Meltblow Fibers
            Filter Quantity : 1
            HEPA Filter : No
            Height : .944882
            Previously cataloged as # : P3740
            Prop 65 Warning Label Required? : No
            Recommended Replacement Interval : 12000 mi
            Unit(s) per Car Qty (ORLY) : 1
            Width : 5.826772
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          1993Audi90CS (2.8 V6 GAS)
          1993Audi90S (2.8 V6 GAS)
          1993Audi90 QuattroCS (2.8 V6 GAS)
          1994Audi90CS (2.8 V6 GAS)
          1994Audi90S (2.8 V6 GAS)
          1994Audi90 QuattroCS (2.8 V6 GAS)
          1994AudiCabrioletBase (2.8 V6 GAS)
          1995Audi90Base (2.8 V6 GAS)
          1995Audi90Sport (2.8 V6 GAS)
          1995Audi90 QuattroBase (2.8 V6 GAS)
          1995Audi90 QuattroSport (2.8 V6 GAS)
          1995AudiCabrioletBase (2.8 V6 GAS)
          1996AudiCabrioletBase (2.8 V6 GAS)
          1996AudiA4Base (2.8 V6 GAS)
          1996AudiA4 QuattroBase (2.8 V6 GAS)
          1997AudiCabrioletBase (2.8 V6 GAS)
          1997AudiA4Base (1.8 L4 GAS)
          1997AudiA4Base (2.8 V6 GAS)
          1997AudiA4 QuattroBase (2.8 V6 GAS)
          1997AudiA4 QuattroBase (1.8 L4 GAS)
          1998AudiCabrioletBase (2.8 V6 GAS)
          1998AudiA4Avant (2.8 V6 GAS)
          1998AudiA4Base (1.8 L4 GAS)
          1998AudiA4Base (2.8 V6 GAS)
          1998AudiA4 QuattroAvant (2.8 V6 GAS)
          1998AudiA4 QuattroBase (1.8 L4 GAS)
          1998AudiA4 QuattroBase (2.8 V6 GAS)
          1998VolkswagenPassatGLS (1.8 L4 GAS)
          1998VolkswagenPassatGLS (2.8 V6 GAS)
          1998VolkswagenPassatGLX (2.8 V6 GAS)
          1999AudiA4Base (2.8 V6 GAS)
          1999AudiA4Base (1.8 L4 GAS)
          1999AudiA4 QuattroAvant (2.8 V6 GAS)
          1999AudiA4 QuattroAvant (1.8 L4 GAS)
          1999AudiA4 QuattroBase (2.8 V6 GAS)
          1999AudiA4 QuattroBase (1.8 L4 GAS)
          1999VolkswagenPassatGLS (1.8 L4 GAS)
          1999VolkswagenPassatGLS (2.8 V6 GAS)
          1999VolkswagenPassatGLX (2.8 V6 GAS)
          2000AudiA4Base (2.8 V6 GAS)
          2000AudiA4Base (1.8 L4 GAS)
          2000AudiA4 QuattroAvant (1.8 L4 GAS)
          2000AudiA4 QuattroAvant (2.8 V6 GAS)
          2000AudiA4 QuattroBase (2.8 V6 GAS)
          2000AudiA4 QuattroBase (1.8 L4 GAS)
          2000AudiS4Base (2.7 V6 GAS)
          2000VolkswagenPassat4 Motion (2.8 V6 GAS)
          2000VolkswagenPassatGLS (2.8 V6 GAS)
          2000VolkswagenPassatGLS (1.8 L4 GAS)
          2000VolkswagenPassatGLX (2.8 V6 GAS)
          2001AudiA4Base (1.8 L4 GAS)
          2001AudiA4Base (2.8 V6 GAS)
          2001AudiA4 QuattroAvant (1.8 L4 GAS)
          2001AudiA4 QuattroAvant (2.8 V6 GAS)
          2001AudiA4 QuattroBase (2.8 V6 GAS)
          2001AudiA4 QuattroBase (1.8 L4 GAS)
          2001AudiS4Avant (2.7 V6 GAS)
          2001AudiS4Base (2.7 V6 GAS)
          2001VolkswagenPassatGLS (2.8 V6 GAS)Notes: To Chassis # 3B-1-049 999
          2001VolkswagenPassatGLS (1.8 L4 GAS)Notes: To Chassis # 3B-1-049 999
          2001VolkswagenPassatGLS 4 Motion (2.8 V6 GAS)Notes: To Chassis # 3B-1-049 999
          2001VolkswagenPassatGLX (2.8 V6 GAS)Notes: To Chassis # 3B-1-049 999
          2001VolkswagenPassatGLX 4 Motion (2.8 V6 GAS)Notes: To Chassis # 3B-1-049 999
          2002AudiS4Avant (2.7 V6 GAS)
          2002AudiS4Base (2.7 V6 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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