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          Denso 210-0843 - Alternator (Remanufactured)

          MPN: 210-0843
          The Denso 210-0843 Alternator ensures efficient electrical power generation for your Volvo S40. Engineered to meet OEM standards for dependable performance.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $190.95 +$68.00 Core Charge
            Core Charge

            A core is some portion of a part that can be recycled or reused by the manufacturer. This helps to reduce product cost and is good for our environment. For this reason a product with a core has an additional charge associated with it. If the old part is returned in reusable condition, the core charge will be refunded.

          In stock

          Product Overview

          The Denso 210-0843 Alternator is engineered to meet or exceed OEM standards, delivering reliable power to your vehicle's electrical system. As a key component in your vehicle's power generation, this alternator transforms mechanical energy into electrical energy, ensuring your battery stays charged and your electrical systems operate efficiently. With a robust design and premium-grade construction, the Denso alternator is trusted by professionals and DIY enthusiasts alike. Choose Denso 210-0843 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Denso 210-0843 is equivalent to or replaces the following part numbers: 104210-4050, 1042104050, 104210-4051, 1042104051, 3M5T-10300-UA, 3M5T10300UA, 3M5T-UA, 3M5TUA, 30667051A, 8602920, 11093, 186-1219, 1861219, AL9356X, 12734, 90-29-5646, 90295646.

          Vehicle Compatibility

          • Volvo S40 2.4L5 (2004)
          • Volvo S40 2.5L5 (2004)

          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 Denso 210-0843 Alternator do?

          The alternator is responsible for generating electrical power for your vehicle's systems while simultaneously charging the battery. It converts the mechanical energy from the engine into electrical energy, ensuring that your vehicle operates smoothly without electrical failures.

          How do I know if my Alternator needs replacement?

          Key signs that your alternator may need replacement include: illuminated battery warning light on the dashboard, dim or flickering headlights, electrical accessories malfunctioning or operating inconsistently, and difficulty starting the vehicle or frequent battery dead issues.

          Can I install the Denso 210-0843 myself?

          Yes, you can install the Denso 210-0843 alternator yourself if you have automotive knowledge and the right tools. Ensure to take necessary precautions such as disconnecting the battery and following installation guides.

          What are the symptoms of a faulty Alternator?

          Symptoms of a faulty alternator include dimming lights, flickering dashboard lights, and a battery warning light illuminating on your dashboard. If you see DTCs such as P0620, P0625, and P0630, it may indicate a failing alternator.

          Why should I choose Denso for my Alternator needs?

          Denso is a trusted brand known for its quality and reliability. Order Denso 210-0843 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
              193307
            • Weight
              11.5 lbs
            • Dimensions (L x W x H)
              9.5 x 7.31 x 6.38 in
            • Barcode
              00042511217607
            • Manufacturer Part #
              210-0843
          • Brand
            Denso
          • Manufacturer
            Denso
          • MPN
            210-0843
          • Part Type
            Alternator
          • OE Part Numbers
            8602920, 3M5T-10300-UA, 3M5T10300UA, 30667051A, 3M5T-UA, 3M5TUA
          • Cross Reference Numbers
            2100843, 186-1219, 1861219, AL9356X, 11093, 90-29-5646, 90295646, 15437, 104210-4050, 1042104050, 12734, 104210-4051, 1042104051
          • Features
            Amperage Rating : 150
            Family : DENSO OE
            Fan Type : Internal
            Rotation Direction : Clockwise
            Voltage : 12.0
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2004VolvoS40T5 (2.5 L5 GAS)Notes: 150 Amp, DENSO is the OE, OE
          2004VolvoS40i (2.4 L5 GAS)Notes: 150 Amp, DENSO is the OE, OE
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          Accepted payment methods

          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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