4RV008188-02 HELLA Glow Plug Relay W123 W126 300SD Mercedes

Review HELLA Mercedes Glow Plug Relay Late Style for MERCEDES W123 W126 300SD

The Hella 4RV008188-02 Mercedes W123 W126 Om617 300SD Glow Plug Relay is an essential component in ensuring optimal performance and quick engine start-up in Mercedes-Benz vehicles equipped with the Om617 diesel engine, specifically for models such as W123 and W126, and 300SD.

This relay is designed to control the glow plug heating element, which is crucial during cold starts. The glow plugs are responsible for heating up the engine coolant and fuel before the engine is started, allowing the engine to run smoothly and efficiently in freezing temperatures.

The Hella 4RV008188-02 is a high-quality, OEM (original equipment manufacturer) replacement part. It is engineered to meet the exact specifications of the original Mercedes-Benz component, ensuring a perfect fit and reliable operation. The relay is designed to handle the high electrical loads of the glow plug system, guaranteeing a longer lifespan than aftermarket alternatives.

The housing of the relay is made of a robust and durable material, resistant to high temperatures and vibrations. The contacts are made of high-quality materials that can withstand the repeated switching cycles required in automotive applications. The relay also features a diagnostic function, which allows for easy identification of any faults in the glow plug system.

The installation process of the Hella 4RV008188-02 is straightforward, making it a convenient and cost-effective solution for Mercedes-Benz owners. No need for extensive modifications or additional components, just a simple plug-and-play replacement of the faulty relay.

In summary, the Hella 4RV008188-02 Mercedes W123 W126 Om617 300SD Glow Plug Relay is an essential and high-quality replacement part for Mercedes-Benz vehicles equipped with the Om617 diesel engine. It ensures reliable operation of the glow plug system, allowing for optimal engine performance in cold temperatures, and offers a convenient and cost-effective solution for Mercedes-Benz owners.

The HELLA 4RV008188-02 Mercedes W123 W126 Om617 300SD Glow Plug Relay is a crucial component for the heating system of Mercedes-Benz W123 and W126 models with the Om617 engine and 300SD designation. This part ensures the proper functioning of the glow plugs, which are necessary for the engine to warm up quickly and efficiently in cold weather conditions. Let's discuss the pros and cons of buying this specific glow plug relay.

1. OEM Part: This HELLA part is an original equipment manufacturer (OEM) part, meaning it is designed, manufactured, and tested by the original equipment manufacturer (Mercedes-Benz) or its approved supplier (HELLA). OEM parts are known for their high quality and reliability.

2. Proper Fitment: This relay is specifically designed for the Mercedes W123 and W126 models with the Om617 engine, ensuring a perfect fit and function.

3. Improved Cold Weather Performance: By ensuring the proper functioning of the glow plugs, this relay can help improve cold weather performance, allowing the engine to start more quickly and run more smoothly in cold conditions.

4. Reduced Risk of Engine Damage: Properly functioning glow plugs help prevent engine damage caused by excessive wear and tear due to prolonged cranking in cold conditions.

5. Potential Cost Savings: While the price of an OEM part like the HELLA 4RV008188-02 might be higher than aftermarket alternatives, it can save you money in the long run by reducing the need for additional repairs or replacements due to lower quality parts.

1. Cost: The price of this OEM part can be higher than aftermarket alternatives, which might be a deterrent for some buyers.

2. Availability: Depending on the specific model and year of the Mercedes-Benz vehicle, the availability of this part might be limited, making it more difficult and time-consuming to find and purchase.

3. Complex Installation: The installation process of the glow plug relay might be more complex than some other parts due to the specific wiring and connections required.

The HELLA 4RV008188-02 Mercedes W123 W126 Om617 300SD Glow Plug Relay is a high-quality, OEM part designed specifically for Mercedes-Benz vehicles with the Om617 engine and 300SD designation. While the cost might be higher than aftermarket alternatives, the benefits, such as improved cold weather performance, reduced risk of engine damage, and proper fitment, make it a worthwhile investment for Mercedes-Benz owners.

If you own a Mercedes-Benz W123 or W126 with the Om617 engine and 300SD designation and are experiencing issues with the glow plugs or cold weather performance, it's recommended to invest in the HELLA 4RV008188-02 Mercedes W123 W126 Om617 300SD Glow Plug Relay. This OEM part will ensure the proper functioning of your glow plugs, improve cold weather performance, and potentially save you money in the long run by reducing the need for additional repairs or replacements.

Details:

specifications ignitioncomp:

• for models: W123, W126, 300sd
• for makes: Mercedes
• brand: Hella
• mpn: 4rv008188-02
• part type: Plug
• oe/oem part number: 001-545-98-32

general ignitioncomp:

• category: Auto Parts > Car Truck Accessories > Ignition Systems Components

offer ignitioncomp:

• availability: in stock
• sold #: 12
• prices: $69.99–$79.99
• item condition: Used
• started: may 19, 2026
• in stock #: 2
• best offers: true
• options: ship-to-home

shipping ignitioncomp:

• type: fixed
• class: standard
• transit: 3-9 days
• carrier: usps
• service: usps ground advantage

returns ignitioncomp:

• paid by: seller
• time: 14 days
• policy: returns accepted

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• other
• wallet: apple-pay
• credit card: visa

seller ignitioncomp:

• city: champaign, illinois
• rating: 99.6%
• # reviews: 2937