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Hella 007794021 - Micro Plug Relay
Product Overview
The Hella Micro Plug Relay 007794021 is a premium-grade automotive component designed to meet or exceed OEM standards. This reliable relay is engineered to ensure optimal performance in various Mercedes-Benz models. Whether you are a DIYer, a seasoned technician, or a value-focused buyer, you can trust this relay to deliver the quality and durability your vehicle demands. Choose Hella 007794021 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Hella 007794021 is equivalent to or replaces the following part numbers: 002 542 74 19, 0025427419, 002 542 14 19, 0025421419.
Vehicle Compatibility
- Mercedes-Benz GLA45 AMG 2.0L4 (2017–2018)
- Mercedes-Benz GLA250 2.0L4 (2016–2018)
- Mercedes-Benz CLA45 AMG 2.0L4 (2016–2018)
- Mercedes-Benz CLA250 2.0L4 (2016–2018)
- Mercedes-Benz AMG GT S 4.0V8 (2016–2017)
- Mercedes-Benz GLE350 3.5V6 (2016–2017)
- Mercedes-Benz GLE400 3.0V6 (2016–2017)
- Mercedes-Benz G63 AMG 5.5V8 (2016–2017)
- Mercedes-Benz G65 AMG 6.0V12 (2016–2017)
- Mercedes-Benz Sprinter 2500 2.1L4 and 3.0V6 (2016–2017)
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 007794021 Micro Plug Relay do?
The Micro Plug Relay plays a crucial role in controlling electrical circuits within your vehicle. It helps manage the power supply to various components, ensuring they operate efficiently and reliably.
How do I know if my Micro Plug Relay needs replacement?
Common symptoms that may indicate the need for relay replacement include electrical malfunctions, intermittent operation of electrical components, or failure of systems that rely on the relay for power.
Can I install the Hella 007794021 myself?
Yes, the installation of the Hella 007794021 Micro Plug Relay can be performed by DIY enthusiasts. However, ensure that you follow proper procedures and safety measures during installation.
What are the symptoms of a faulty Micro Plug Relay?
Symptoms of a faulty relay may include malfunctioning electrical systems, failure of components such as lights or windows, and inconsistent performance of electrical features. If you see DTCs such as P0500, P0600, or P0700, it may indicate a failing relay.
Why should I choose Hella for my Micro Plug Relay needs?
Hella is known for its high-quality automotive components. Choosing Hella 007794021 ensures you receive a factory-correct replacement that restores safety and performance. Order Hella 007794021 today for reliable performance you can trust.
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
- MPN007794021
- Part TypeMicro Plug Relay
- OE Part NumbersA 002 542 74 19, A0025427419, RM13977251, 002 542 89 19, 0025428919, 002 542 14 19, 0025421419, 2E0 937 099, 2E0937099, 000 545 55 05, 0005455505, 004 545 04 05, 0045450405, 000 982 83 23, 0009828323, 002 545 14 19, 0025451419, A 000 982 81 23, A0009828123, A 005 455 55 05, A0054555505, A 002 545 14 19, A0025451419, A 004 545 04 05, A0045450405, A 000 545 55 05, A0005455505, A 000 982 83 23, A0009828323, A 003 545 27 05, A0035452705, A 003 545 86 05, A0035458605, 000 982 81 23, 0009828123, 001 542 92 19, 0015429219, 003 545 27 05, 0035452705, 002 542 74 19, 0025427419, 000 821 01 63, 0008210163, 27DAC 7687, 27DAC7687, A 000 545 83 05, A0005458305, A 002 542 14 19, A0025421419, 003 545 86 05, 0035458605, A 002 542 89 19, A0025428919, 000 545 83 05, 0005458305, 003 542 10 19, 0035421019, A 003 542 10 19, A0035421019, A 000 821 01 63, A0008210163, A 001 542 92 19, A0015429219, 005 455 55 05, 0054555505
- Cross Reference NumbersA 002 542 89 19, A0025428919, 13500119, 6238564, 643501, A 002 542 74 19, A0025427419, 0 332 209 151, 0332209151, 002 542 14 19, 0025421419, 90543014, 1000193647, 003 545 27 05, 0035452705, 90491314, A 003 545 27 05, A0035452705, A 000 821 01 63, A0008210163, 6238515, 000 982 83 23, 0009828323, 005 455 55 05, 0054555505, 890008530, 0 332 204 103, 0332204103, 001 542 92 19, 0015429219, A 000 545 55 05, A0005455505, RM13977251, 0 986 332 041, 0986332041, A 001 542 92 19, A0015429219, 003 545 86 05, 0035458605, A 000 982 81 23, A0009828123, 000 545 55 05, 0005455505, 87329426, 75 613 156, 75613156, A 000 545 83 05, A0005458305, A 002 545 14 19, A0025451419, A 003 545 86 05, A0035458605, 000 821 01 63, 0008210163, 166009, 0 332 209 137, 0332209137, 1082-000018-00, 108200001800, 23 1244, 231244, 0 986 AH0 625, 0986AH0625, 1238307, 611 008, 611008, 643512, 0 332 204 201, 0332204201, 225190, 000 545 83 05, 0005458305, 004 545 04 05, 0045450405, 4272432M1, 003 542 10 19, 0035421019, 0 332 204 101, 0332204101, 002 545 14 19, 0025451419, 4 14001 6, 4140016, A 005 455 55 05, A0054555505, A 002 542 14 19, A0025421419, 20 201 000, 20201000, 4 272 432 M1, 9 000 032 44, 900003244, 000 982 81 23, 0009828123, 002 542 89 19, 0025428919, A 000 982 83 23, A0009828323, A 004 545 04 05, A0045450405, 0 332 209 150, 0332209150, 002 542 74 19, 0025427419, A 003 542 10 19, A0035421019
- FeaturesAssy./disassy. by qualified personnel required! : .
Capacitive Load [A] : 20
Capacitive Load [A] : 30
Capacity at 12V : 20/30A
Colour : Black
Combi Switch Function : Changeover Contact
Combi Switch Function : Normally Closed Contact
Combi Switch Function : Normally Open Contact
Has the same colour as the orginal part : Brown
Inductive Load [A] : 5
Number of pins : 5
Ohmic Load [A] : 20
Ohmic Load [A] : 30
Plug Type ID : B1
Protection Type (IP Code) : 54
Relay function : Air Conditioning
Relay function : Alternator
Relay function : Central Locking
Relay function : Comfort Equipment Variant (trim package)
Relay function : Convertible top hydraulics
Relay function : Daytime Running Light
Relay function : ESP
Relay function : Fan, heater/air conditioning
Relay function : Heated rear window
Relay function : Heated windscreen
Relay function : Horn
Relay function : Light switch
Relay function : Low Beam
Relay function : Starter
Relay function : Window Regulator
Relay function : Windscreen wiper stage 1
Relay function : Windscreen wiper stage 2
SVHC : 7439-92-1; Lead
Supplementary Article/Info 2 : with resistor
Supplementary Article/Supplementary Info : without holder
Temperature range [°C] : 80
Voltage [V] : 12
Wiring Diagramme : W2
for OE number : 90491314
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2004 | Mercedes-Benz | SLK230 | Kompressor (2.3 L4 GAS) | |
| 2004 | Mercedes-Benz | SLK32 AMG | Base (3.2 V6 GAS) | |
| 2004 | Mercedes-Benz | SLK320 | Base (3.2 V6 GAS) | |
| 2004 | Mercedes-Benz | CLK500 | Base (5.0 V8 GAS) | |
| 2004 | Mercedes-Benz | S55 AMG | Base (5.5 V8 GAS) | |
| 2004 | Mercedes-Benz | G500 | Base (5.0 V8 GAS) | |
| 2004 | Mercedes-Benz | G55 AMG | Base (5.5 V8 GAS) | |
| 2004 | Mercedes-Benz | ML350 | Base (3.7 V6 GAS) | |
| 2004 | Mercedes-Benz | ML500 | Base (5.0 V8 GAS) | |
| 2004 | Mercedes-Benz | SL600 | Base (5.5 V12 GAS) | |
| 2004 | Mercedes-Benz | S500 | 4Matic (5.0 V8 GAS) | |
| 2004 | Mercedes-Benz | S500 | Base (5.0 V8 GAS) | |
| 2004 | Mercedes-Benz | S430 | 4Matic (4.3 V8 GAS) | |
| 2004 | Mercedes-Benz | S430 | Base (4.3 V8 GAS) | |
| 2004 | Mercedes-Benz | SL55 AMG | Base (5.5 V8 GAS) | |
| 2004 | Mercedes-Benz | SL500 | Base (5.0 V8 GAS) | |
| 2004 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | |
| 2004 | Mercedes-Benz | CLK55 AMG | Base (5.5 V8 GAS) | |
| 2004 | Mercedes-Benz | CLK320 | Base (3.2 V6 GAS) | |
| 2004 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | |
| 2004 | Mercedes-Benz | CL55 AMG | Base (5.5 V8 GAS) | |
| 2004 | Mercedes-Benz | CL500 | Base (5.0 V8 GAS) | |
| 2005 | Mercedes-Benz | CL500 | Base (5.0 V8 GAS) | |
| 2005 | Mercedes-Benz | CL55 AMG | Base (5.5 V8 GAS) | |
| 2005 | Mercedes-Benz | CL600 | Base (5.5 V12 GAS) | |
| 2005 | Mercedes-Benz | CL65 AMG | Base (6.0 V12 GAS) | |
| 2005 | Mercedes-Benz | CLK320 | Base (3.2 V6 GAS) | |
| 2005 | Mercedes-Benz | CLK500 | Base (5.0 V8 GAS) | |
| 2005 | Mercedes-Benz | CLK55 AMG | Base (5.5 V8 GAS) | |
| 2005 | Mercedes-Benz | G500 | Base (5.0 V8 GAS) | |
| 2005 | Mercedes-Benz | G55 AMG | Base (5.5 V8 GAS) | |
| 2005 | Mercedes-Benz | ML350 | Base (3.7 V6 GAS) | |
| 2005 | Mercedes-Benz | ML500 | Base (5.0 V8 GAS) | |
| 2005 | Mercedes-Benz | S430 | 4Matic (4.3 V8 GAS) | |
| 2005 | Mercedes-Benz | S430 | Base (4.3 V8 GAS) | |
| 2005 | Mercedes-Benz | S500 | 4Matic (5.0 V8 GAS) | |
| 2005 | Mercedes-Benz | S500 | Base (5.0 V8 GAS) | |
| 2005 | Mercedes-Benz | S55 AMG | Base (5.5 V8 GAS) | |
| 2005 | Mercedes-Benz | S600 | Base (5.5 V12 GAS) | |
| 2005 | Mercedes-Benz | SL500 | Base (5.0 V8 GAS) | |
| 2005 | Mercedes-Benz | SL55 AMG | Base (5.5 V8 GAS) | |
| 2005 | Mercedes-Benz | SL600 | Base (5.5 V12 GAS) | |
| 2005 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | |
| 2006 | Mercedes-Benz | ML500 | Base (5.0 V8 GAS) | |
| 2006 | Mercedes-Benz | S350 | Base (3.7 V6 GAS) | |
| 2006 | Mercedes-Benz | S430 | 4Matic (4.3 V8 GAS) | |
| 2006 | Mercedes-Benz | S430 | Base (4.3 V8 GAS) | |
| 2006 | Mercedes-Benz | G500 | Base (5.0 V8 GAS) | |
| 2006 | Mercedes-Benz | G55 AMG | Base (5.5 V8 GAS) | |
| 2006 | Mercedes-Benz | SL55 AMG | Base (5.5 V8 GAS) | |
| 2006 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | |
| 2009 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | |
| 2009 | Mercedes-Benz | SL65 AMG | Black Series (6.0 V12 GAS) | |
| 2009 | Mercedes-Benz | SL600 | Base (5.5 V12 GAS) | |
| 2009 | Mercedes-Benz | SL550 | Base (5.5 V8 GAS) | |
| 2009 | Mercedes-Benz | G550 | Base (5.5 V8 GAS) | |
| 2008 | Mercedes-Benz | G55 AMG | Base (5.5 V8 GAS) | |
| 2008 | Mercedes-Benz | G500 | Base (5.0 V8 GAS) | |
| 2008 | Mercedes-Benz | R320 | CDI (3.0 V6 DIESEL) | |
| 2008 | Mercedes-Benz | R350 | 4Matic (3.5 V6 GAS) | |
| 2008 | Mercedes-Benz | R350 | Base (3.5 V6 GAS) | |
| 2008 | Mercedes-Benz | ML63 AMG | Base (6.3 V8 GAS) | |
| 2008 | Mercedes-Benz | ML350 | 4Matic (3.5 V6 GAS) | |
| 2008 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | |
| 2008 | Mercedes-Benz | SL55 AMG | Base (5.5 V8 GAS) | |
| 2008 | Mercedes-Benz | SL600 | Base (5.5 V12 GAS) | |
| 2008 | Mercedes-Benz | SL550 | Base (5.5 V8 GAS) | |
| 2008 | Mercedes-Benz | CLK63 AMG | Base (6.3 V8 GAS) | |
| 2008 | Mercedes-Benz | CLK63 AMG | Black Series (6.3 V8 GAS) | |
| 2008 | Mercedes-Benz | CLK550 | Base (5.5 V8 GAS) | |
| 2008 | Mercedes-Benz | CLK350 | Base (3.5 V6 GAS) | |
| 2007 | Mercedes-Benz | G55 AMG | Base (5.5 V8 GAS) | |
| 2007 | Mercedes-Benz | G500 | Base (5.0 V8 GAS) | |
| 2007 | Mercedes-Benz | R320 | CDI (3.0 V6 DIESEL) | |
| 2007 | Mercedes-Benz | R500 | Base (5.0 V8 GAS) | |
| 2007 | Mercedes-Benz | R350 | 4Matic (3.5 V6 GAS) | |
| 2007 | Mercedes-Benz | ML500 | Base (5.0 V8 GAS) | |
| 2007 | Mercedes-Benz | ML350 | 4Matic (3.5 V6 GAS) | |
| 2007 | Mercedes-Benz | SL55 AMG | Base (5.5 V8 GAS) | |
| 2007 | Mercedes-Benz | CLK550 | Base (5.5 V8 GAS) | |
| 2007 | Mercedes-Benz | CLK350 | Base (3.5 V6 GAS) | |
| 2007 | Mercedes-Benz | ML63 AMG | Base (6.3 V8 GAS) | |
| 2007 | Mercedes-Benz | CLK63 AMG | Base (6.3 V8 GAS) | |
| 2007 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | |
| 2007 | Mercedes-Benz | SL600 | Base (5.5 V12 GAS) | |
| 2007 | Mercedes-Benz | SL550 | Base (5.5 V8 GAS) | |
| 2003 | Mercedes-Benz | ML320 | Base (3.2 V6 GAS) | |
| 2011 | Mercedes-Benz | SL65 AMG | Base (6.0 V12 GAS) | |
| 2011 | Mercedes-Benz | SL63 AMG | Base (6.3 V8 GAS) | |
| 2011 | Mercedes-Benz | SL550 | Base (5.5 V8 GAS) | |
| 2010 | Mercedes-Benz | Sprinter 3500 | Base (3.0 V6 DIESEL) | |
| 2010 | Mercedes-Benz | Sprinter 2500 | Base (3.0 V6 DIESEL) | |
| 2010 | Mercedes-Benz | G55 AMG | Base (5.5 V8 GAS) | |
| 2010 | Mercedes-Benz | G550 | Base (5.5 V8 GAS) | |
| 2010 | Mercedes-Benz | R350 | 4Matic (3.5 V6 GAS) | |
| 2010 | Mercedes-Benz | R350 | Bluetec 4Matic (3.0 V6 DIESEL) | |
| 2010 | Mercedes-Benz | ML63 AMG | Base (6.3 V8 GAS) | |
| 2010 | Mercedes-Benz | ML350 | 4Matic (3.5 V6 GAS) | |
| 2010 | Mercedes-Benz | ML350 | Base (3.5 V6 GAS) | |
| 2010 | Mercedes-Benz | ML350 | 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.







