Dayco 89514 Accessory Drive Belt Idler Pulley - Smooth Pulley

Accessory Drive Belt Idler Pulley for Serpentine Systems

Dayco 89514 is an accessory drive belt idler pulley built for serpentine belt routing in select Mercedes-Benz and Dodge Sprinter applications. It uses a steel construction with a single bearing and a flat pulley profile for smooth belt tracking.

Use this Dayco idler pulley when servicing a serpentine accessory drive system that calls for a smooth pulley design and a maximum belt width of 6 ribs. The Dayco 89514 is a direct-fit style replacement for vehicles such as the Mercedes-Benz C300, E350, GL550, and related applications listed below.

Key Features

• Steel pulley construction for accessory drive durability
• Serpentine belt application with flat, smooth pulley surface
• Single bearing design
• Bearing inner diameter: 8.09 mm
• Bearing width: 26 mm
• Maximum belt width: 6 rib
• Dayco part number 89514

Detailed Description

This accessory drive belt idler pulley is engineered for smooth serpentine belt routing in compatible Mercedes-Benz and Dodge Sprinter vehicles. The steel body and single-bearing layout support consistent belt alignment, while the flat pulley face is suited to smooth pulley positions in the accessory drive belt system. If you are replacing a worn idler pulley on a Mercedes-Benz C300, E350, or GL450, Dayco 89514 provides the correct style for the listed applications.

This part cross-references Gates 36372 for the same application.

What It Helps Address

• Squealing or chirping from a worn idler pulley
• Belt tracking issues caused by pulley wear
• Rough or noisy bearing operation in the accessory drive system
• Visible pulley surface wear on a serpentine belt route
• Service replacement for smooth pulley positions in the belt drive

Installation Notes and Tips

Verify pulley style, belt width, and bearing dimensions before installation. This part is listed for smooth pulley positions and 6-rib maximum belt width applications. Confirm vehicle fitment by year, make, model, and pulley position before ordering. For best results, inspect the serpentine belt and adjacent drive components during service.

Quality Assurance

Dayco manufactures accessory drive components for OE-style replacement applications, and this pulley is built to match the listed fitment and dimensional requirements for the vehicles shown.

Compatible Vehicles

• Fits 2013-2015 Mercedes-Benz G550, N/A
• Fits 2010-2013 Mercedes-Benz S400, N/A
• Fits 2008-2012 Mercedes-Benz C300, N/A
• Fits 2009-2012 Mercedes-Benz G550, N/A
• Fits 2011-2012 Mercedes-Benz GL450, N/A
• Fits 2008-2012 Mercedes-Benz GL550, N/A
• Fits 2010-2012 Mercedes-Benz GLK350, N/A
• Fits 2007-2012 Mercedes-Benz SL550, N/A
• Fits 2006-2011 Mercedes-Benz C350, N/A
• Fits 2007-2011 Mercedes-Benz CLS550, N/A
• Fits 2006-2011 Mercedes-Benz E350, N/A
• Fits 2007-2011 Mercedes-Benz E550, N/A
• Fits 2007-2011 Mercedes-Benz ML350, N/A
• Fits 2008-2011 Mercedes-Benz ML550, N/A
• Fits 2006-2011 Mercedes-Benz R350, N/A
• Fits 2007-2011 Mercedes-Benz S550, N/A
• Fits 2009-2011 Mercedes-Benz SLK300, N/A
• Fits 2007-2011 Mercedes-Benz SLK350, N/A
• Fits 2008-2010 Mercedes-Benz CL550, N/A
• Fits 2007-2010 Mercedes-Benz GL450, N/A
• Fits 2006-2009 Mercedes-Benz C230, N/A
• Fits 2006-2009 Mercedes-Benz CLK350, N/A
• Fits 2007-2009 Mercedes-Benz CLK550, N/A
• Fits 2007-2008 Dodge Sprinter 2500, Smooth Pulley
• Fits 2007-2008 Dodge Sprinter 3500, Smooth Pulley
• Fits 2006-2008 Mercedes-Benz SLK280, N/A
• Fits 2006-2007 Mercedes-Benz C280, N/A