SKP SK89651 Accessory Drive Belt Tensioner Assembly

Accessory Drive Belt Tensioner for Mercedes-Benz and Jeep

SKP SK89651 is an accessory drive belt tensioner assembly that helps maintain proper belt tension for steady engine operation and reliable performance of belt-driven components. It is built from quality materials and tested for fit and function, with application coverage for select Mercedes-Benz Sprinter, GL, ML, R, E, S, and Jeep Grand Cherokee models.

Key Features

• Accessory drive belt tensioner assembly for the belt drive system
• Helps maintain consistent belt tension for smoother operation
• Built with high-quality materials for everyday engine bay demands
• Tested for fit and function to support direct replacement use
• Supports quieter operation when replacing a worn tensioner
• Part number SK89651 for catalog and cross-reference lookup

Detailed Description

SKP SK89651 is a replacement accessory drive belt tensioner assembly for select Mercedes-Benz and Jeep applications. It is used in the accessory drive belt system to keep belt tension within the proper range, which helps the belt drive operate smoothly across components such as the alternator, power steering, and other engine accessories. This part number SK89651 also cross-references Dayco 89651 for the same application.

Compatible vehicle coverage includes 2017 Mercedes-Benz GLS350d, 2010-2017 Mercedes-Benz Sprinter 2500 and Sprinter 3500 without rear A.C., 2010-2016 Mercedes-Benz GL350, 2016 Mercedes-Benz GLE350d, 2010-2015 Mercedes-Benz ML350, 2011-2013 Mercedes-Benz E350, 2010-2013 Mercedes-Benz R350, 2012-2013 Mercedes-Benz S350, and 2007-2010 Jeep Grand Cherokee. It also fits 2007-2009 Dodge Sprinter 2500 and Sprinter 3500 with automatic temperature control, plus 2007-2009 Mercedes-Benz E320, GL320, ML320, and R320.

What It Helps Address

• Belt squeal caused by a weak or worn tensioner
• Uneven belt tension that can affect accessory drive performance
• Premature belt wear from poor tension control
• Noise from a tensioner pulley or spring mechanism that is no longer operating correctly
• Accessory drive instability in Mercedes-Benz Sprinter, GL, ML, R, E, S, and Jeep Grand Cherokee applications

Installation Notes and Tips

Verify engine configuration and vehicle equipment before ordering, especially rear A.C. and automatic temperature control notes on Sprinter applications. Inspect the belt, pulleys, and related accessory drive components during replacement, since a worn belt or pulley can shorten the life of the new tensioner. Confirm fitment by year, make, model, and engine setup before installation.

Quality Assurance

SKP tensioner assemblies are manufactured with quality materials and undergo fit and function testing to support dependable replacement performance. SK89651 is built for direct-fit service on the listed applications and is intended to restore proper belt tension control in the accessory drive system.