

Mercedes C Series W203 OM612 Connecting Rod Bolt | ELRING 434.490
Mercedes C-Class W203 OM612 Connecting Rod Bolt
ELRING 434.490 | Original Equipment (OEM) | 100% German Quality
The Mercedes C-Class W203 is equipped with the OM612 engine, and this connecting rod bolt plays a critical role in the internal structure of the engine. The connecting rod bolt secures the connection of the pistons to the connecting rod and supports the smooth operation of the engine. This part is extremely important for enhancing the engine's performance and reliability. The connecting rod bolt, recognized by the code ELRING 434.490, is designed to increase the durability of the engine and is a fundamental component of the engine system.
Product Features and Benefits
- OEM Compatibility: The ELRING connecting rod bolt is manufactured in accordance with original equipment standards. This ensures that the part fits perfectly into the engine's internal structure and provides reliable performance.
- Material Quality: Made from high-quality steel, this connecting rod bolt stands out for its durability and long-lasting use. It is reinforced with special manufacturing technologies.
- Durability and Lifespan: The estimated lifespan can reach up to 200,000 km with regular maintenance. It is resistant to temperature and engine conditions.
- Performance: This part improves the overall performance of the engine, enhancing fuel efficiency and reducing emission values.
- Testing and Certification: ELRING adheres to international quality standards such as ISO 9001 and TS 16949. The manufacturing processes undergo strict testing and certification phases.
Technical Details
| Manufacturer Brand | ELRING |
| Product Code (OE/OEM) | 434.490 |
| Part Type | Connecting Rod Bolt |
| Manufacturing Standard | OE equivalent / OEM |
| Origin | Germany |
| System | Engine |
Vehicle Compatibility
This connecting rod bolt is compatible with the OM612 engine of the Mercedes C-Class W203 models. This engine is found in the versions produced between 2000-2007. This part plays a critical role in the internal structure of the engine and enhances the engine's performance with proper installation.
- Chassis code: W203
- Engine code: OM612
- Production year range: 2000-2007
- Trim/Variant: C200, C220, C270
It is recommended to confirm with our contact line using your 17-digit VIN (chassis) number for the correct part selection.
Quality and Warranty
ELRING has a long-standing history in the spare part market and is an original equipment supplier for many automotive manufacturers. The brand, based in Germany, has manufacturing facilities with high-quality standards. It guarantees quality with ISO 9001 and TS 16949 certifications. ELRING produces OE parts for prestigious brands like Mercedes.
Installation and Usage Notes
The installation of this connecting rod bolt should be performed by professionals. During installation, it is important to tighten the bolt to the correct torque value. Generally, it is recommended to check other engine parts during the replacement of the connecting rod bolt. Additionally, including it in the overall maintenance program of the engine will extend the engine's lifespan.
Frequently Asked Questions
In which W203 models is this connecting rod bolt used?
This connecting rod bolt is compatible with the OM612 engine of the Mercedes C-Class W203 models. It is used in the C200, C220, and C270 variants.
Is it original or aftermarket?
ELRING is an original equipment manufacturer for Mercedes. This connecting rod bolt is produced in accordance with OE standards, and there is no difference in quality.
How many km does this connecting rod bolt last / when should it be replaced?
This connecting rod bolt can last up to 200,000 km with regular maintenance. Signs of wear include increased engine noise and loss of performance.
Can I install it myself, or do I need to take it to a professional?
The installation of the connecting rod bolt is a specialized task. It is recommended to have it installed at an authorized service with the necessary tools.
How long does it take to arrive, do I have the right to return it?
Your orders are shipped the same day. You have the right to return within 14 days. It will be delivered with an e-archive invoice.
Advantages of German Parts Warehouse: Same day shipping, 14-day return policy, sales with e-archive invoice, WhatsApp expert support line (wa.me/905382927219). Our stock information is updated in real-time; your order is only confirmed from 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.
- 1120380071 — MERCEDES-BENZ
- A1120380071 — MERCEDES-BENZ
