Mercedes W204 Front Exhaust Pipe Hose Duct Connector OM642 Diesel A2044904019

Mercedes W204 Front Exhaust Pipe Hose Duct Connector OM642 Diesel is a factory-original exhaust system component designed for OM642 diesel engines. Thanks to its precise fit to the body geometry and drivetrain, it ensures a stable connection of the front exhaust section and proper exhaust gas flow in Mercedes vehicles. This solution is dedicated to users who expect a proven, original design rather than universal replacements.

Specifications and technical data

• SKU: A2044904019
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044904019
• Substitutable numbers: A2044904019, A 204 490 40 19
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Exhaust Pipes & Tips

Purpose and function in the exhaust system

The described front pipe operates in a critical area of the exhaust system, connecting components responsible for discharging exhaust gases from the OM642 diesel engine in the W204 body. Its task is to maintain connection tightness, the correct direction of exhaust flow, and to limit unwanted vibrations transmitted to other components. A properly selected exhaust pipe in this location is crucial for stable engine operation, correct interaction with subsequent exhaust sections, and maintaining the factory acoustic characteristics.

Construction and fitment for Mercedes W204

The pipe has been designed specifically for the construction of the front exhaust section in the Mercedes W204 with a diesel engine, which translates into precise routing relative to the chassis and adjacent components. The properly selected connection geometry facilitates installation and allows for the retention of factory mounting points, without the need for modifications or fitting universal elements. As a result, the entire assembly works with other exhaust components in a predictable manner consistent with the manufacturer's specifications.

Benefits of using an original exhaust pipe

Using an original exhaust connector in the front part of the vehicle reduces the risk of leaks, excessive stress, and accelerated wear of adjacent elements. For OM642 diesel units, it is particularly important to maintain appropriate exhaust flow parameters, which affects engine refinement and correct interaction with further sections of the system. By choosing this element, you opt for consistency with the factory Mercedes design and predictable system behavior over a long period of operation.

Characteristics of the used component

The offered exhaust pipe comes from disassembly, which allows for combining an attractive cost with the preservation of the manufacturer's original specifications. A used component is a good solution for drivers who want to keep their car in line with factory standards while optimizing repair budgets. Before installation, it is recommended to perform a standard inspection of the surface condition and mounting points to ensure long-lasting and stable exhaust system operation.

Expanding the Mercedes exhaust system

If you are planning a comprehensive repair or upgrade of the exhaust system area in your Mercedes and need other elements from the same group, such as intermediate sections, tips, or additional connectors, check the available parts in the Mercedes exhaust pipes and tips category.

More about the trend for original used premium parts

If you want to better understand why original used components for premium brands, such as Mercedes, are becoming an increasingly popular choice for repairs and upgrades, it is worth reading the market analysis in the article Crisis in the new parts market? Why used originals for premium cars are the hottest trend in 2026.