Mercedes SLK R171 M272 Petrol Engine Exhaust Manifold Left N/S A2721400509

The Mercedes SLK R171 M272 Left Exhaust Manifold is a factory exhaust system component designed for gasoline engines, specifically for models equipped with the M272 unit. Its design, tailored for the left side of the vehicle, ensures stable exhaust gas evacuation and maintains optimal engine operating parameters. This is the solution for users seeking original exhaust flow geometry and a perfect fit.

Specifications and technical data

• SKU: A2721400509
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2721400509
• Substitutable numbers: A2721400509, A 272 140 05 09
• Location on the vehicle: Left
• Fuel type: Petrol
• Category: Manifolds & Headers

Purpose and Technical Fitment

The presented exhaust manifold has been developed for M272 family gasoline engines, positioned on the left side of the engine bay. Appropriately shaped exhaust channels help maintain uniform cylinder emptying, contributing to stable engine operation and reduced unwanted vibrations. Dedicated fitment for the Mercedes SLK R171 minimizes the risk of installation issues and exhaust system leaks.

Construction Characteristics and Role in the Exhaust System

The exhaust manifold is the first component of the exhaust gas evacuation system, so its geometry influences exhaust pulsations, initial temperature, and the load on downstream components. For gasoline engines, maintaining proper flow is particularly important to support correct cylinder filling and preserve the smoothness of the powertrain. The original manifold design helps reduce the risk of cracks, deformations, and leaks, which often occur with imprecise aftermarket replacements.

Practical Application and Benefits of Installation

Installing this exhaust manifold is particularly important in situations where the existing component has suffered cracks, corrosion, or thermal deformation. Replacing it with a part featuring factory geometry allows for:

• restoring proper exhaust system sealing on the left side of the engine,
• limiting exhaust gas ingress into the engine bay and cabin,
• maintaining correct operating conditions for sensors and other exhaust components,
• preserving compliance with the gasoline unit's factory operating parameters.

For users who care about the technical aspects of their vehicle, it is important to note that the exhaust manifold offered here is from the original Mercedes parts group, which helps maintain factory flow characteristics and compatibility with other system components.

Condition, Origin, and Installation Aspects

The offered exhaust manifold is in used condition, allowing for an economical repair while maintaining the manufacturer's original specifications. This type of component is intended for installation in place of the factory left-side manifold, utilizing existing mounting points on the cylinder head and connections to the rest of the exhaust system. In practice, this means it can be installed using standard service procedures without requiring vehicle modifications.

Technical Support and Further Information on Exhaust Systems

If you want to better understand how manifold selection affects gasoline engine performance characteristics and the practical differences between various exhaust system solutions, it is worth consulting a guide. You can find an extended discussion of topics related to used manifolds and other exhaust components in the article Performance Exhaust Systems: Used Manifolds and Sport Catalytic Converters on the Road, which clearly explains the selection and operation of such components.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as additional manifold sections, connectors, or transition pieces, check the available parts in the Mercedes Exhaust Manifolds category.