The Mercedes GL Series W166 is equipped with the OM642 engine and was produced between 2012 and 2019. The tensioner plug plays a critical role in ensuring the proper functioning of the engine; it regulates the belt tension, enhancing the engine's performance. This spare part prevents engine wear and offers long-lasting use. The tensioner plug with the code ELRING 125.820 is an important component of the engine system and is a factor that affects the overall performance of the vehicle.
Product Features and Benefits
- OEM Compatibility: The ELRING brand is manufactured in accordance with original equipment standards. This tensioner plug is designed to meet Mercedes authorized service standards, ensuring perfect installation compatibility.
- Material Quality: Produced using high-quality materials. Its durable structure is resistant to wear and provides long-term performance.
- Durability and Lifespan: This tensioner plug can withstand up to 100,000 kilometers. It demonstrates reliable performance even in harsh temperature conditions.
- Performance: By regulating the engine's tension, it provides fuel savings and enhances the overall performance of the engine.
- Testing and Certification: ELRING manufactures in compliance with ISO 9001 and TS 16949 standards. This tensioner plug has undergone high-quality control processes.
Technical Details
| Manufacturer Brand | ELRING |
| Product Code (OE/OEM) | 125.820 |
| Part Type | Tensioner Plug |
| Production Standard | OE equivalent / OEM |
| Origin | Germany |
| System | Engine |
Vehicle Compatibility
This tensioner plug is compatible with vehicles of the Mercedes GL Series W166 chassis code. These vehicles, equipped with the OM642 engine code, were produced between 2012 and 2019. This model is positioned in the luxury SUV segment, notable for its spacious interior and comfort.
- Chassis code: W166
- Engine code: OM642
- Production year range: 2012-2019
- Trim/Variant: -
It is recommended to confirm with our support line using your 17-digit VIN (chassis) number for the correct part selection.
Quality and Warranty
ELRING is a well-known brand in the spare part market and serves as an OE supplier to many automotive manufacturers. It holds ISO 9001, TS 16949, and IATF 16949 certifications. Its production facilities are located in Germany, offering products with high-quality standards. ELRING specializes particularly in engine parts.
Installation and Usage Notes
The most important point to consider during the installation of the tensioner plug is to ensure the correct tension adjustment. This part is critical for the proper functioning of the engine belt. After installation, it is important to check the tension of the belt and adjust it if necessary. Additionally, the tensioner plug should be checked during engine maintenance. If the belt is replaced, it is recommended to also replace the tensioner plug.
Advantages of German Parts Warehouse: Same-day shipping, 14-day return policy, e-archive invoicing, WhatsApp expert support line (wa.me/905382927219). Our stock information is updated in real-time; your order is confirmed only for items physically available. If you write to our support line with your vehicle's chassis number, we will promptly provide you with a quote for the correct OE/equivalent part.
