Subtotal:$0.00
Bosch P3740WS - Cabin Air Filter
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.
- BrandBosch
- ManufacturerBosch
- MPNP3740WS
- Part TypeCabin Air Filter
- OE Part Numbers8A0819439A, 8A0819439
- FeaturesActivated 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 TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1993 | Audi | 90 | CS (2.8 V6 GAS) | |
| 1993 | Audi | 90 | S (2.8 V6 GAS) | |
| 1993 | Audi | 90 Quattro | CS (2.8 V6 GAS) | |
| 1994 | Audi | 90 | CS (2.8 V6 GAS) | |
| 1994 | Audi | 90 | S (2.8 V6 GAS) | |
| 1994 | Audi | 90 Quattro | CS (2.8 V6 GAS) | |
| 1994 | Audi | Cabriolet | Base (2.8 V6 GAS) | |
| 1995 | Audi | 90 | Base (2.8 V6 GAS) | |
| 1995 | Audi | 90 | Sport (2.8 V6 GAS) | |
| 1995 | Audi | 90 Quattro | Base (2.8 V6 GAS) | |
| 1995 | Audi | 90 Quattro | Sport (2.8 V6 GAS) | |
| 1995 | Audi | Cabriolet | Base (2.8 V6 GAS) | |
| 1996 | Audi | Cabriolet | Base (2.8 V6 GAS) | |
| 1996 | Audi | A4 | Base (2.8 V6 GAS) | |
| 1996 | Audi | A4 Quattro | Base (2.8 V6 GAS) | |
| 1997 | Audi | Cabriolet | Base (2.8 V6 GAS) | |
| 1997 | Audi | A4 | Base (1.8 L4 GAS) | |
| 1997 | Audi | A4 | Base (2.8 V6 GAS) | |
| 1997 | Audi | A4 Quattro | Base (2.8 V6 GAS) | |
| 1997 | Audi | A4 Quattro | Base (1.8 L4 GAS) | |
| 1998 | Audi | Cabriolet | Base (2.8 V6 GAS) | |
| 1998 | Audi | A4 | Avant (2.8 V6 GAS) | |
| 1998 | Audi | A4 | Base (1.8 L4 GAS) | |
| 1998 | Audi | A4 | Base (2.8 V6 GAS) | |
| 1998 | Audi | A4 Quattro | Avant (2.8 V6 GAS) | |
| 1998 | Audi | A4 Quattro | Base (1.8 L4 GAS) | |
| 1998 | Audi | A4 Quattro | Base (2.8 V6 GAS) | |
| 1998 | Volkswagen | Passat | GLS (1.8 L4 GAS) | |
| 1998 | Volkswagen | Passat | GLS (2.8 V6 GAS) | |
| 1998 | Volkswagen | Passat | GLX (2.8 V6 GAS) | |
| 1999 | Audi | A4 | Base (2.8 V6 GAS) | |
| 1999 | Audi | A4 | Base (1.8 L4 GAS) | |
| 1999 | Audi | A4 Quattro | Avant (2.8 V6 GAS) | |
| 1999 | Audi | A4 Quattro | Avant (1.8 L4 GAS) | |
| 1999 | Audi | A4 Quattro | Base (2.8 V6 GAS) | |
| 1999 | Audi | A4 Quattro | Base (1.8 L4 GAS) | |
| 1999 | Volkswagen | Passat | GLS (1.8 L4 GAS) | |
| 1999 | Volkswagen | Passat | GLS (2.8 V6 GAS) | |
| 1999 | Volkswagen | Passat | GLX (2.8 V6 GAS) | |
| 2000 | Audi | A4 | Base (2.8 V6 GAS) | |
| 2000 | Audi | A4 | Base (1.8 L4 GAS) | |
| 2000 | Audi | A4 Quattro | Avant (1.8 L4 GAS) | |
| 2000 | Audi | A4 Quattro | Avant (2.8 V6 GAS) | |
| 2000 | Audi | A4 Quattro | Base (2.8 V6 GAS) | |
| 2000 | Audi | A4 Quattro | Base (1.8 L4 GAS) | |
| 2000 | Audi | S4 | Base (2.7 V6 GAS) | |
| 2000 | Volkswagen | Passat | 4 Motion (2.8 V6 GAS) | |
| 2000 | Volkswagen | Passat | GLS (2.8 V6 GAS) | |
| 2000 | Volkswagen | Passat | GLS (1.8 L4 GAS) | |
| 2000 | Volkswagen | Passat | GLX (2.8 V6 GAS) | |
| 2001 | Audi | A4 | Base (1.8 L4 GAS) | |
| 2001 | Audi | A4 | Base (2.8 V6 GAS) | |
| 2001 | Audi | A4 Quattro | Avant (1.8 L4 GAS) | |
| 2001 | Audi | A4 Quattro | Avant (2.8 V6 GAS) | |
| 2001 | Audi | A4 Quattro | Base (2.8 V6 GAS) | |
| 2001 | Audi | A4 Quattro | Base (1.8 L4 GAS) | |
| 2001 | Audi | S4 | Avant (2.7 V6 GAS) | |
| 2001 | Audi | S4 | Base (2.7 V6 GAS) | |
| 2001 | Volkswagen | Passat | GLS (2.8 V6 GAS) | Notes: To Chassis # 3B-1-049 999 |
| 2001 | Volkswagen | Passat | GLS (1.8 L4 GAS) | Notes: To Chassis # 3B-1-049 999 |
| 2001 | Volkswagen | Passat | GLS 4 Motion (2.8 V6 GAS) | Notes: To Chassis # 3B-1-049 999 |
| 2001 | Volkswagen | Passat | GLX (2.8 V6 GAS) | Notes: To Chassis # 3B-1-049 999 |
| 2001 | Volkswagen | Passat | GLX 4 Motion (2.8 V6 GAS) | Notes: To Chassis # 3B-1-049 999 |
| 2002 | Audi | S4 | Avant (2.7 V6 GAS) | |
| 2002 | Audi | S4 | Base (2.7 V6 GAS) |
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.








