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          Bosch 0250603021 - Diesel Glow Plug

          MPN: 0250603021
          The Bosch 0250603021 Diesel Glow Plug ensures reliable starts for Volkswagen diesel engines in cold conditions. Designed for easy installation and long-lasting performance.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $15.53
          In stock

          Product Overview

          The Bosch Diesel Glow Plug (part number 0250603021) is engineered to deliver optimal performance and reliability for your Volkswagen vehicle. As a trusted OEM supplier, Bosch utilizes premium-grade construction to ensure that this glow plug meets or exceeds industry standards. Designed for a range of Volkswagen models, this glow plug is the ideal choice for those looking to replace worn or faulty parts and maintain their vehicle's performance, especially in cold weather conditions. Choose Bosch 0250603021 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Bosch 0250603021 is equivalent to or replaces the following part numbers: N10591608

          Vehicle Compatibility

          • Volkswagen Touareg 5.0L V10 TDI (2004–2008)
          • Volkswagen Golf 1.9L 4 TDI (2006)
          • Volkswagen Jetta 1.9L 4 TDI (2005–2006)
          • Volkswagen Beetle 1.9L 4 TDI (2006)

          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 0250603021 Diesel Glow Plug do?

          The Bosch glow plug is a crucial component in diesel engines, responsible for heating the combustion chamber to facilitate the ignition of fuel in cold conditions. This ensures that your engine starts smoothly, even in low temperatures.

          How do I know if my Diesel Glow Plug needs replacement?

          Common signs that the glow plug may need replacement include difficulty starting the engine in cold weather, rough idle when the engine is cold, and the illumination of warning lights on the dashboard related to the engine or emissions.

          Can I install the Bosch 0250603021 myself?

          Yes, the installation of the Bosch 0250603021 is straightforward, making it possible for DIY enthusiasts to replace it. However, ensure to follow proper safety precautions while working on your vehicle.

          What are the symptoms of a faulty Diesel Glow Plug?

          Symptoms of a faulty glow plug include hard starting in cold weather, increased exhaust smoke, and engine misfires. If you see DTCs such as P0670, P0671, P0672, P0673, P0674, it may indicate a failing glow plug.

          Why should I choose Bosch for my Diesel Glow Plug needs?

          Choosing Bosch ensures you receive a high-quality, reliable component that is designed specifically for your vehicle. Order Bosch 0250603021 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
              240326
            • Weight
              0.0882 lbs
            • Dimensions (L x W x H)
              0.9843 x 0.8661 x 5.7874 in
            • Barcode
              04047025904285
            • Manufacturer Part #
              0250603021
          • Brand
            Bosch
          • Manufacturer
            Bosch
          • MPN
            0250603021
          • Part Type
            Diesel Glow Plug
          • OE Part Numbers
            N10591608
          • Features
            Coil Type : Sheathed Single Coil
            Connector Gender : Male
            Fast/Quick Start : Yes
            Heating Element Material : Porcelain
            Hex Size : 9
            Igniting Type : Quick
            Integrated Pressure Sensor : No
            Length : 96
            Material Type : Porcelain
            Overall Length : 3.779528
            Pre-Heating Time : 1.4
            Product Length : 3.779528 in
            Prop 65 Warning Label Required? : No
            Reach : 29
            Seat Type : Tapered
            System Voltage : 12
            Terminal Gender : Female
            Terminal Thread Size : 10 mm
            Terminal Type : Pin
            Thread Diameter : 10
            Voltage : 7
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2004VolkswagenTouaregTDI (4.9 V10 DIESEL)Notes: with NGK Unit
          2005VolkswagenJettaGL TDI (1.9 L4 DIESEL)Engine: BRM
          2005VolkswagenJettaGLS TDI (1.9 L4 DIESEL)Engine: BRM
          2005VolkswagenJettaTDI (1.9 L4 DIESEL)Engine: BRM
          2006VolkswagenGolfGLS TDI (1.9 L4 DIESEL)
          2006VolkswagenJettaTDI (1.9 L4 DIESEL)
          2006VolkswagenTouaregTDI (5.0 V10 DIESEL)
          2006VolkswagenBeetleTDI (1.9 L4 DIESEL)
          2007VolkswagenTouaregTDI (5.0 V10 DIESEL)
          2008VolkswagenTouaregTDI (5.0 V10 DIESEL)
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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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