• Labyrinth seal stops contamination of internal parts for maximum durability and service life
  
• Machined steel pulley reduces surface wear while shielding the internal bearing from outside contaminants
  
• Double row bearings minimize friction for reduced bearing wear and noise
  
• Round spring wire includes a chrome-silicone torsion spring for less flex-fatigue than flat-wire designs
  
• Damping mechanism provides maximum stability, reducing vibration and increasing the life of belt, tensioner, and other accessory drive components

Signs of wear for drive belt tensioner assembly include but are not limited to:

• Worn or cracked tensioner pulleys
  
• Drive belt squeal
  
• Tensioner misalignment

• Before purchasing and installing a drive belt tensioner assembly, make sure it is the correct size and fit for your vehicle.
  
• Be sure to have the replacement tensioner properly aligned to the other drive component pulleys.
  
• Have your vehicle inspected as soon as possible if the 'Service Engine Soon' light illuminates.
  
• Have your vehicle inspected immediately if the 'Service Engine Soon' light flashes rapidly, as this indicates an engine misfire condition which may damage your engine and/or engine emission components.
  
• Regularly inspect assembly for signs of damage or wear, and replace them if signs of damage are found.

Q: Can a drive belt be too tight?
A: Yes. If the drive belt is too tight, damage to other drive components may occur.

Q: Will there be consequences if I ignore a “Service Engine Soon” light?
A: Yes. Ignoring a ‘Service Engine Soon’ light can cause damage to your engine’s mechanical components and/or emission system. A ‘Service Engine Soon’ light should be checked as soon as possible by a qualified GM certified service technician.