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          Bosch 16541 - Oxygen Sensor

          MPN: 16541
          The Bosch 16541 Oxygen Sensor accurately measures exhaust oxygen levels, enhancing engine performance and fuel efficiency. Designed for select Porsche and Volvo models.
          5.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $75.95
          In stock

          Product Overview

          The Bosch Oxygen Sensor part number 16541 is a premium-grade replacement part specifically engineered to meet the demands of Porsche and Volvo vehicles. This sensor ensures a perfect fit and seamless integration with your car's engine, providing reliable performance and durability. One of the key benefits of the Bosch Oxygen Sensor is its precise ability to measure the oxygen levels in your vehicle's exhaust system. This data is crucial for the engine control unit to accurately regulate the air-fuel ratio, optimizing both performance and fuel efficiency. Crafted from high-quality materials, the Bosch Oxygen Sensor is designed to withstand high temperatures and various driving conditions, ensuring longevity and dependability. Installation is straightforward and can be performed without special tools, making it a convenient and cost-effective solution for replacing worn-out sensors. The Bosch Oxygen Sensor is not just a replacement; it's a vital component that can enhance the overall performance of your Porsche or Volvo vehicle. Choose Bosch 16541 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Bosch 16541 is equivalent to or replaces the following part numbers: 30637837

          Vehicle Compatibility

          • Porsche 911 3.6 H6 (2002–2005)
          • Porsche 911 Carrera 3.6 H6 (2002–2005)
          • Porsche 911 Carrera 4 3.6 H6 (2002–2005)
          • Porsche 911 Carrera 4S 3.6 H6 (2002–2005)
          • Porsche 911 GT3 3.6 H6 (2002–2005)
          • Volvo S80 T6 2.9 L6 (2003–2005)
          • Volvo S80 T6 Premier 2.9 L6 (2005)
          • Volvo XC90 T6 2.9 L6 (2003–2005)

          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 16541 Oxygen Sensor do?

          The Bosch Oxygen Sensor measures the level of oxygen in the exhaust gases of your vehicle. This information is vital for the engine control unit, which uses it to adjust the air-fuel mixture for optimal engine performance and fuel efficiency.

          What vehicles is this part compatible with?

          This Oxygen Sensor is compatible with various Porsche and Volvo models, including the Porsche 911 and Volvo S80 and XC90. For precise fitment, please use the vehicle selector tool above.

          What are common signs this part may need replacement?

          Common signs that the Oxygen Sensor may need replacement include poor fuel economy, rough engine idle, increased emissions, and the illumination of the check engine light. If you notice any of these symptoms, it may be time to replace your sensor.

          Are there any DTC (Diagnostic Trouble Codes) associated with this part?

          Common diagnostic trouble codes associated with Oxygen Sensors include P0131, P0132, P0133, and P0134. If you encounter any check engine codes, consult professional repair documentation or experts for accurate diagnosis and confirmation.

          Why should I choose Bosch for my Oxygen Sensor needs?

          Choosing Bosch ensures you receive a factory-correct replacement that restores safety and performance. Order Bosch 16541 today for a reliable and efficient solution to your vehicle's oxygen measurement needs.

          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
              236455
            • Weight
              0.3373 lbs
            • Dimensions (L x W x H)
              2.2047 x 1.9685 x 5.8268 in
            • Barcode
              00028851165419
            • Manufacturer Part #
              16541
          • Brand
            Bosch
          • Manufacturer
            Bosch
          • MPN
            16541
          • Part Type
            Oxygen Sensor
          • OE Part Numbers
            99660617801
          • Cross Reference Numbers
            8670131, 30637520, 30637837
          • Features
            Automotive Color / Finish : Steel
            Automotive Item Weight (lbs) : 0.286601 lb
            Connector Gender : Male
            Connector Shape : Rectangle
            Grade Type : Regular
            Heated (Oxygen Sensor) : Yes
            Hex Size (Oxygen Sensor) : 22 mm
            Housing Material : Metal
            Length (Sealing Surface To End Of Connector) : 27.9527559055118 in
            Mounting Bracket Included : No
            Mounting Type : Threaded
            Overall Length : 29.1338582677165
            Oxygen Sensor Type : Narrow-band heated
            Prop 65 Warning Label Required? : No
            Sensor Type : Heated
            Terminal Gender : Male
            Terminal Quantity : 4
            Terminal Type : Blade
            Thread Diameter : 18
            Thread Size : 18
            Universal Or Specific Fit : Specific
            Wire Quantity : 4
            Wiring Harness Included : Yes
            Wiring Harness Length : 25.7874015748032
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2002Porsche911Carrera (3.6 H6 GAS)Position: Downstream
          2002Porsche911Carrera 4 (3.6 H6 GAS)Position: Downstream
          2002Porsche911Carrera 4S (3.6 H6 GAS)Position: Downstream
          2002Porsche911GT2 (3.6 H6 GAS)Position: Downstream
          2002Porsche911Targa (3.6 H6 GAS)Position: Downstream
          2002Porsche911Turbo (3.6 H6 GAS)Position: Downstream
          2002VolvoS802.9 (2.9 L6 GAS)Position: Downstream Right, Aspiration: Naturally Aspirated, Aspiration: Turbocharged, Notes: To 07/2002
          2002VolvoS80T6 (2.9 L6 GAS)Position: Downstream Right, Aspiration: Naturally Aspirated, Aspiration: Turbocharged, Notes: To 07/2002
          2003Porsche911Carrera (3.6 H6 GAS)Position: Downstream
          2003Porsche911Carrera 4 (3.6 H6 GAS)Position: Downstream
          2003Porsche911Carrera 4S (3.6 H6 GAS)Position: Downstream
          2003Porsche911GT2 (3.6 H6 GAS)Position: Downstream
          2003Porsche911Turbo (3.6 H6 GAS)Position: Downstream
          2003VolvoS802.9 (2.9 L6 GAS)Position: Downstream Left
          2003VolvoS80T6 (2.9 L6 GAS)Position: Downstream Left
          2003VolvoXC90T6 (2.9 L6 GAS)Position: Downstream
          2004Porsche91140th Anniversary Edition (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2004Porsche911Carrera (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2004Porsche911Carrera 4 (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2004Porsche911Carrera 4S (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2004Porsche911GT2 (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2004Porsche911GT3 (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2004Porsche911Turbo (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2004VolvoS802.9 (2.9 L6 GAS)Position: Downstream Left
          2004VolvoS80T6 (2.9 L6 GAS)Position: Downstream Left
          2004VolvoXC90T6 (2.9 L6 GAS)Position: Downstream
          2005Porsche911Carrera S (3.8 H6 GAS)Position: Downstream
          2005Porsche911Carrera (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2005Porsche911Carrera 4S (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2005Porsche911GT2 (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2005Porsche911GT3 (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2005Porsche911Turbo (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2005Porsche911Turbo S (3.6 H6 GAS)Position: Downstream, Aspiration: Naturally Aspirated
          2005VolvoS80T6 (2.9 L6 GAS)Position: Downstream Left
          2005VolvoS80T6 Premier (2.9 L6 GAS)Position: Downstream Left
          2005VolvoXC90T6 (2.9 L6 GAS)Position: Downstream
          Customer reviews
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          • Chi Quach
            Jan 27, 2026, 14:54
            5.0
            Great price, and fast shipping!!!
            eEuroparts
            Jan 28, 2026, 16:57
            Thank you for your review! We’re happy to hear that you were pleased with the pricing.

            We take pride in offering competitive prices alongside same-day shipping. We’re glad we could provide great value for your project!

          We accept the following payment methods:

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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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