Mercedes W164 W204 W212 OM642 Engine Breather Hose Cap A6420100131

The Mercedes W164 W204 W212 OM642 Crankcase Vent Connector A6420100131 is an original crankcase ventilation system component designed for the OM642 engine in select Mercedes W164, W204, and W212 models. This used crankcase vent connector from the turbocharger and parts category allows for proper gas circulation within the engine, which promotes stable engine operation and reduces the risk of intake contamination.

Specifications and technical data

• SKU: A6420100131-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420100131
• Substitutable numbers: A6420100131, A 642 010 01 31
• Category: Turbos & Parts

Purpose and function of the OM642 pneumothorax connector

The vent pipe in the OM642 engine is responsible for the controlled discharge of crankcase gases into the intake system. A properly selected and tight component:

• stabilizes the pressure in the crankcase, which promotes the smooth operation of the diesel engine,
• Reduces oil leakage into the intake, helping to keep the intake system and turbocharger cleaner
• supports the correct operation of the exhaust gas recirculation system and turbocharging equipment.

In the case of OM642 units used in Mercedes W164, W204 and W212, a functioning breather pipe is important for the durability of the turbocharger and maintaining stable engine operating parameters.

Genuine Mercedes part from the turbocharger and parts category

This breather pipe is a genuine Mercedes component, sourced from the OE line. As a result, it retains the factory geometry, port diameters, and mounting method, making it easy to install on the OM642 engine without the need for modifications.

The product's placement in the turbocharger and parts category highlights its importance for the entire turbocharger system – leaks or damage to the pneumatic valve can affect turbine operation, exhaust smoke levels, and oil consumption. Choosing an original manifold reduces the risk of operational problems resulting from poorly fitted aftermarket parts.

Used condition – conscious choice for service and regeneration

The item is offered in used condition, which represents a reasonable compromise between repair costs and maintaining the original build quality. Used pneumothorax connector:

• works well as a service part when replacing worn or damaged components of the ventilation system,
• can be used in the process of regenerating OM642 engine accessories,
• allows the system to be consistent with Mercedes factory design solutions.

Before installation, it is recommended to check the tightness and condition of the mating surfaces as per service procedures for diesel engines.

Benefits of using a pneumatic valve in the OM642 engine

A properly selected pneumatic valve in the OM642 unit installed in Mercedes W164, W204 and W212 brings a number of practical operational benefits:

• more predictable engine operation thanks to stable crankcase ventilation,
• reducing the risk of excessive oiling of the intake ducts and components working with the turbocharger,
• better working conditions for the charging system and accessories, which contributes to their durability,
• maintaining solutions in line with Mercedes factory specifications.

For owners of cars with the OM642 engine who want to maintain the structural integrity of the drive unit, the use of the original breather pipe is a practical service solution.

Other exhaust manifolds and turbocharger components for Mercedes

If you're also looking for other exhaust manifolds and components from the Mercedes turbocharger and parts category, check out our offer using the link: Mercedes turbochargers and parts . This will allow you to easily select related components for your turbocharging and exhaust system.

Mercedes youngtimers and used pneumothorax components

Owners of Mercedes-Benz models similar to the W164, W204, and W212 increasingly treat their cars as youngtimers, where the conscious use of used parts allows them to preserve the vehicle's original character. To better understand how carefully selected components—including the breather system and engine accessories—can rejuvenate older models, check out the article: A Second Life for a Youngtimer: How Used Car Parts Rejuvenate Cars from 1998–2012 . There, you'll find practical tips on selecting and using used components in premium cars.