- 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 imperative to your INFINITI's performance and handling, as it links the alternator, power steering, and A/C to the engine to make sure power continues to flow from the engine to these vehicle accessories.
A worn-out or broken INFINITI accessory drive belt tensioner might lead to a squealing noise when the engine is first started, or the drive belt will look frayed. If extremely worn out, the Accessory Drive Belt Tensioner can cause the drive belt to snap and all of the accessories it powers to fail along with it. Your INFINITI engine can overheat. Or, your vehicle could lose power steering or alternator charge. These events can make it close to impossible to continue driving down the road.
It's best to replace the Accessory Drive Belt Tensioner before you note severe wear and tear. Many auto technicians suggest installing a new tensioner pulley at 50,000 to 100,000 mile intervals.
Replacing a car accessory belt tensioner at home requires more advanced automotive skills, since the process involves a handful of special tools, uncoupling the car battery, picking the correct belt to replace, and adjusting the Accessory Drive Belt Tensioner to have the perfect 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.
Turn to the professionals at INFINITI. Order a replacement belt tensioner for your INFINITI Pathfinder 2008-2012 from INFINITI Parts, and visit your closest INFINITI service center for Accessory Drive Belt Tensioner installation Click on the "What This Fits" tab for additional fitment info.
TENSIONER ASSY-AUTO
Fits QX56