Accessory Drive Belt Tensioner

Part Number: 11955-1EA9D
Supersession(s): 11955-1EA0A; 11955-1EA0B; 11955-1EA0C; 11955-1EA9E; 11955-JK21A; 119551EA9D

  • Maintains the tension in the drive belt, which sends power to essential vehicle components like your alternator and power steering
  • If failing, it could cause the engine to overheat and loss of power steering system
  • Generally needs to be replaced about every 50,000 to 100,000 miles

The Accessory Drive Belt Tensioner helps balance and maintain the tension in the drive belt (serpentine belt). The drive belt is essential to your Nissan's handling and performance, as it connects the power steering, A/C, and alternator to the engine to ensure power flows from the engine to all of these accessories.

An Nissan old accessory drive belt tensioner might lead to a frayed-looking drive belt or a squealing noise when the engine starts up. If badly damaged, the Accessory Drive Belt Tensioner could snap the drive belt and then cause all of the accessories it powers to fail, too. Your Nissan engine can overheat. Or, you may experience a loss of charge from the alternator or a loss of power steering. These events can make it very difficult, if not impossible, to keep driving!

It's a smart move to install a replacement Accessory Drive Belt Tensioner before you note severe wear and tear. Many technicians recommend a replacement tensioner pulley around every 50,000-100,000 miles.

Replacing a car accessory belt tensioner at home requires experience and automotive knowledge, as the process involves some unique tools, disconnecting the battery, identifying the correct belt, and adjusting the Accessory Drive Belt Tensioner to have just the right amount of tension. If the belt is too loose, it could fall off and get pulled into other engine parts. If it is too tight, it will put stress on the system and cause other parts to stop working.

Visit the Nissan professionals at your nearest service center. Get the right replacement belt tensioner for your Nissan GT-R 2009-2011 from Nissan Parts & Accessories, and visit your closest Nissan service center for Accessory Drive Belt Tensioner installation See the "What This Fits" tab for additional fitment info.



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