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Hella 008188021 - Diesel Glow Plug Relay
Product Overview
The Hella Diesel Glow Plug Relay, part number 008188021, is expertly engineered for Mercedes-Benz vehicles, providing an essential component for diesel engines. This premium-grade relay is designed to meet or exceed OEM standards, ensuring reliable performance and longevity. With the Hella Glow Plug Relay, you can trust that your diesel engine will start smoothly and efficiently, enhancing fuel efficiency and reducing emissions. Choose Hella 008188021 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Hella 008188021 is equivalent to or replaces the following part numbers: 0015459832.
Vehicle Compatibility
- Mercedes-Benz 300CD 3.0L5 (1980–1985)
- Mercedes-Benz 300D 3.0L5 (1980–1985)
- Mercedes-Benz 300SD 3.0L5 (1981–1985)
- Mercedes-Benz 300TD 3.0L5 (1980–1985)
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 Hella 008188021 Diesel Glow Plug Relay do?
The Hella Glow Plug Relay provides crucial power to the glow plugs in diesel engines, ensuring they heat up quickly for efficient starting and optimal engine performance.
How do I know if my Diesel Glow Plug Relay needs replacement?
Key symptoms of a failing glow plug relay include difficulty starting the engine, an increase in white smoke during startup, and engine misfires while running. If you experience these issues, it may be time to replace the relay.
Can I install the Hella 008188021 myself?
Yes, installation of the Hella 008188021 is straightforward and can be performed by DIY enthusiasts. However, ensure you follow all safety precautions and installation instructions provided.
What are the symptoms of a faulty Diesel Glow Plug Relay?
Common symptoms include difficulty starting the engine, increased white smoke during startup, and rough engine performance. If you see these issues, it may indicate a failing Hella 008188021.
Why should I choose Hella for my Diesel Glow Plug Relay needs?
Hella is a trusted brand known for quality and reliability. Order Hella 008188021 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.
- BrandHella
- ManufacturerHella
- MPN008188021
- Part TypeDiesel Glow Plug Relay
- OE Part Numbers001 545 98 32, 0015459832
- Cross Reference Numbers4381 66277, 438166277, A0015450532, A0025450632, A0015459832, GR071, 0015459832, 0 333 402 515, 0333402515, 0 281 003 096, 0281003096, HDC117, 0201010071, 0025450932, 34524, 0 333 402 507, 0333402507, I0 899 180, I0899180, 0 333 402 508, 0333402508, 410-202-010-001Z, 410202010001Z, 0015450532, V30-71-0014, V30710014, 13 132 032, 13132032, 20092, 0025450632, 13 132 033, 13132033, 132032, 0 250 201 953, 0250201953, A0025450932
- FeaturesAssy/Disassy by Qualified Personnel Required! : .
Number of pins : 11
Pre-Glow Time [sec] : 9
Supplementary Article/Info 2 : without Post-Glow Time
Supplementary Article/Supplementary Info : without External Temperature Measurement
Voltage [V] : 12
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1985 | Mercedes-Benz | 300SD | Base (3.0 L5 DIESEL) | Aspiration: Turbocharged, Engine: 617.951, Notes: Control Unit, glow plug system - 11-pin connector - Pre-Glow Time: 9sec. - without external temperature measurement |
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.






