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Hella 933364027 - Micro Plug Relay
Product Overview
The Hella Micro Plug Relay 933364027 is an essential component for your Mercedes-Benz, specifically designed to meet OEM standards. This premium-grade relay ensures optimal compatibility with part number 002 542 81 19, providing reliable performance for your vehicle's electrical system. Known for its exceptional reliability, Hella products guarantee long-lasting durability and superior performance, making it a smart investment for maintaining your Mercedes-Benz. Its quick and easy installation is particularly beneficial for DIY enthusiasts and those looking to save on automotive service costs. Choose Hella 933364027 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Hella 933364027 is equivalent to or replaces the following part numbers: 002 542 81 19
Vehicle Compatibility
- Mercedes-Benz R350 3.0 V6 Diesel (2010–2012)
- Mercedes-Benz GL350 3.0 V6 Diesel (2010–2012)
- Mercedes-Benz ML350 3.0 V6 Diesel (2010–2011)
- Mercedes-Benz ML320 3.0 V6 Diesel (2008–2009)
- Mercedes-Benz GL320 3.0 V6 Diesel (2008–2009)
- Mercedes-Benz R320 3.0 V6 Diesel (2008–2009)
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 933364027 Micro Plug Relay do?
The Hella glow plug relay plays a crucial role in regulating the electrical current necessary for the operation of your vehicle's glow plugs, which are essential for starting diesel engines in cold conditions. A reliable relay ensures that the glow plugs heat effectively, facilitating easier starts and smoother engine performance.
How do I know if my Micro Plug Relay needs replacement?
Common signs that the glow plug relay may need replacement include difficulty starting the engine, dimming dashboard lights during startup, and a noticeable decrease in engine performance, especially in cold weather conditions.
Can I install the Hella 933364027 myself?
Yes, the installation of the Hella 933364027 Micro Plug Relay can be performed by DIY enthusiasts. However, it is important to follow proper procedures and safety precautions to ensure reliable operation.
What are the symptoms of a faulty Micro Plug Relay?
Symptoms of a faulty glow plug relay include hard starts, misfiring, and poor fuel efficiency. If you experience these issues, it may indicate a failing relay that requires prompt attention.
Why should I choose Hella for my Micro Plug Relay needs?
Hella is a trusted name in automotive components known for quality and reliability. Order Hella 933364027 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
- MPN933364027
- Part TypeMicro Plug Relay
- OE Part NumbersA 002 542 81 19, A0025428119, 002 542 81 19, 0025428119
- Cross Reference Numbers3054730, 2.7659.280.0, 276592800
- FeaturesAssy./disassy. by qualified personnel required! : .
Capacitive Load [A] : 20
Capacity at 12V : 30A
Combi Switch Function : Normally Open Contact
Inductive Load [A] : 20
Number of pins : 5
Ohmic Load [A] : 20
Plug Type ID : C3
Relay function : ABS
Relay function : ABS recovery pump
Relay function : Air Conditioning
Relay function : Central Locking
Relay function : Clamp 15
Relay function : Clamp 15R
Relay function : Clamp 87
Relay function : Comfort Equipment Variant (trim package)
Relay function : Convertible top hydraulics
Relay function : Daytime Running Light
Relay function : ESP
Relay function : Electric booster heater
Relay function : Exterior mirror adjustment
Relay function : Fan, engine cooling
Relay function : Fan, heater/air conditioning
Relay function : Front Fog Light
Relay function : Fuel Pump
Relay function : Heatable exterior mirror
Relay function : Heated rear window
Relay function : High Beam
Relay function : Horn
Relay function : Interior Blower
Relay function : Lambda Sensor
Relay function : Light switch
Relay function : Light, passenger compartment
Relay function : Low Beam
Relay function : Parking Distance Control
Relay function : Seat Heating
Relay function : Secondary Air System
Relay function : Starter
Relay function : Sunroof
Relay function : Window Regulator
Relay function : Windscreen wiper
Relay function : Windscreen wiper rest heating
Supplementary Article/Supplementary Info : without holder
Switch : Bistable
Temperature range from [°C] : -40
Temperature range to [°C] : 85
Voltage [V] : 12
Wiring Diagramme : L1
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2007 | Mercedes-Benz | ML320 | CDI (3.0 V6 DIESEL) | |
| 2007 | Mercedes-Benz | R320 | CDI (3.0 V6 DIESEL) | |
| 2007 | Mercedes-Benz | GL320 | CDI (3.0 V6 DIESEL) | |
| 2008 | Mercedes-Benz | ML320 | CDI (3.0 V6 DIESEL) | |
| 2008 | Mercedes-Benz | R320 | CDI (3.0 V6 DIESEL) | |
| 2008 | Mercedes-Benz | GL320 | CDI (3.0 V6 DIESEL) | |
| 2009 | Mercedes-Benz | ML320 | Bluetec 4Matic (3.0 V6 DIESEL) | |
| 2009 | Mercedes-Benz | R320 | Bluetec (3.0 V6 DIESEL) | |
| 2009 | Mercedes-Benz | GL320 | Bluetec 4Matic (3.0 V6 DIESEL) | |
| 2010 | Mercedes-Benz | GL350 | Bluetec 4Matic (3.0 V6 DIESEL) | |
| 2010 | Mercedes-Benz | ML350 | Bluetec 4Matic (3.0 V6 DIESEL) | |
| 2010 | Mercedes-Benz | R350 | Bluetec 4Matic (3.0 V6 DIESEL) | |
| 2011 | Mercedes-Benz | ML350 | Bluetec 4Matic (3.0 V6 DIESEL) | |
| 2011 | Mercedes-Benz | GL350 | Bluetec 4Matic (3.0 V6 DIESEL) | |
| 2011 | Mercedes-Benz | R350 | Bluetec 4Matic (3.0 V6 DIESEL) | |
| 2012 | Mercedes-Benz | R350 | Bluetec 4Matic (3.0 V6 DIESEL) | |
| 2012 | Mercedes-Benz | GL350 | Bluetec 4Matic (3.0 V6 DIESEL) |
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.







