Genuine 1121590180 Fuel Injection Air Flow Meter Boot

Fuel Injection Air Flow Meter Boot for Mercedes-Benz

This Genuine fuel injection air flow meter boot, part number 1121590180, connects the air mass sensor or air duct housing in select Mercedes-Benz applications. It is a rubber intake boot with 86mm I.D. and 96.5mm O.D. dimensions for direct replacement use on listed models.

Key Features

• Genuine OE replacement boot for the air intake and air metering path
• Rubber construction for the specified Mercedes-Benz applications
• 86mm inner diameter and 96.5mm outer diameter
• Used between the air mass sensor, air filter housing, air duct housing, or intake manifold depending on vehicle
• Part number 1121590180 for accurate catalog matching

Detailed Description

Use this fuel injection air flow meter boot when servicing the intake tract on Mercedes-Benz vehicles that require a direct-fit rubber boot between the air mass sensor, air filter housing, air duct housing, or intake manifold. Part number 1121590180 is listed for a wide range of Mercedes-Benz models, including SLK55 AMG, G500, ML500, C55 AMG, CL500, CL55 AMG, CLK500, CLK55 AMG, CLS500, E500, R500, S350, S430, S500, SL500, C240, C320, CLK320, E320, C32 AMG, G55 AMG, SLK320, CLK430, E430, E55 AMG, S55 AMG, and C43 AMG. This Genuine boot is specified with 86mm I.D. and 96.5mm O.D. dimensions to match the listed intake connections.

What It Helps Fix

• Cracked or split intake boot at the air mass sensor connection
• Unmetered air leaks in the intake tract
• Loose or deteriorated rubber between the air filter housing and air duct housing
• Airflow disruption caused by aged intake ducting
• Fitment issues when replacing the original Mercedes-Benz boot with the correct dimensions

Installation Notes and Tips

Verify the connection point on your vehicle before ordering, since listed applications use this boot in different locations. Confirm the 86mm I.D. and 96.5mm O.D. measurements and match the notes for your exact Mercedes-Benz model and year. For example, Fits 2005-2008 Mercedes-Benz SLK55 AMG, N/A; Fits 2002-2007 Mercedes-Benz G500, N/A; and Fits 2003-2006 Mercedes-Benz E500, N/A. Inspect adjoining clamps, housings, and sensors for wear before installation.

Quality Assurance

Genuine OE-style replacement part number 1121590180 for the listed Mercedes-Benz intake applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.