

Mercedes W123 OM616 Thermostat O-Ring | FEBI 10258
Mercedes W123 Chassis OM616 Thermostat O-Ring
FEBI 10258 | Original Equipment (OEM) | 100% German Quality
The Mercedes W123 chassis code was produced between 1976 and 1985 with the OM616 engine. Thermostat O-rings play an important role in the engine's cooling system. This part controls the engine temperature, preventing overheating and ensuring efficient engine operation. Using a quality thermostat O-ring extends the engine's lifespan and enhances its performance. The O-ring offered under the FEBI 10258 code is manufactured in accordance with original equipment standards and increases the reliability of the cooling system.
Product Features and Benefits
- OEM Compatibility: This thermostat O-ring is produced in full compliance with Mercedes' original equipment standards. It offers reliable performance in accordance with authorized service standards.
- Material Quality: Made from high-quality elastomer material. This ensures resistance to temperature changes and provides long-lasting use.
- Durability and Lifespan: It shows durability up to 100,000 km under normal usage conditions. It maintains performance even under extreme temperature and pressure conditions.
- Performance: By controlling the engine temperature, it prevents overheating. This helps the engine operate more efficiently and reduces fuel consumption.
- Testing and Certification: Manufactured in accordance with ISO 9001 and TS 16949 standards. Each part has been meticulously tested through quality control processes.
Technical Details
| Manufacturer Brand | FEBI |
| Product Code (OE/OEM) | 10258 |
| Part Type | Thermostat O-Ring |
| Production Standard | OE equivalent / OEM |
| Origin | Germany |
| System | Engine Cooling System |
Vehicle Compatibility
The FEBI 10258 thermostat O-ring is compatible with vehicles coded as Mercedes W123. This part is designed for use in models with the OM616 engine code. The W123 series was produced between 1976 and 1985 and is critical for the efficiency of the engine cooling system during this period.
- Chassis code: W123
- Engine code: OM616
- Production year range: 1976-1985
- Trim/Variant: All variants
It is recommended to confirm with our contact line using your 17-digit VIN (chassis) number for the correct part selection.
Quality and Warranty
FEBI has many years of experience in the automotive spare part industry. This Germany-based brand serves as an OE supplier to many automotive manufacturers. Its production facilities are managed according to high-quality standards and are certified with ISO 9001 and TS 16949. FEBI has proven its reliability by supplying parts to prestigious brands like Mercedes.
Installation and Usage Notes
The most important point to consider during the installation of the thermostat O-ring is the proper removal of the old O-ring. The new O-ring must be lubricated before installation. Additionally, attention should be paid to the torque value during installation, and appropriate tools should be used. It is recommended to check the thermostat O-ring during each maintenance to ensure sealing and efficient operation of the engine cooling system.
Frequently Asked Questions
In which W123 models is this thermostat O-ring used?
The FEBI 10258 thermostat O-ring can be used in all models coded as Mercedes W123. It is specifically designed for vehicles with the OM616 engine code.
Is it original or aftermarket?
FEBI is recognized as an original equipment manufacturer. Therefore, the FEBI 10258 thermostat O-ring offers the same quality and performance as original parts.
How many kilometers does this thermostat O-ring last / when should it be replaced?
The FEBI 10258 thermostat O-ring shows durability up to 100,000 km under normal usage conditions. However, it is recommended to replace it immediately if any signs of leakage are observed.
Can I install it myself, or do I need to take it to a mechanic?
The installation of the thermostat O-ring can be done with basic hand tools. However, care should be taken, and correct techniques should be used during installation. It is always recommended to seek assistance from a skilled technician.
How long will it take to arrive, do I have the right to return it?
Your order is shipped on the same day. You have a 14-day return right. If you encounter any issues with the product, you can get assistance from our support line.
Advantages of German Parts Warehouse: Same day shipping, 14-day return right, 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 contact line with your vehicle's chassis number, we will quickly provide you with the correct OE/equivalent part as a quote.
This product is equivalent to the following OEM/original part numbers. You can search by your vehicle's original part number.
- 0019973345 — Mercedes-Benz
- 00A121119 — TecDoc (VW)
- 0159972348 — Mercedes-Benz
- 0A121119 — TecDoc (VW)
- A0019973345 — Mercedes-Benz
- A0159972348 — Mercedes-Benz
- N90560801 — TecDoc (VW)
Compatible vehicle information not yet added.
