The serpentine belt gets its name because it snakes around several components of your engine including the alternator, air conditioner, power steering and water pump and powers them as the crankshaft turns. When the serpentine belt fails, all the associated components such as the alternator, air conditioner, power steering and water pump stop working. That’s why it’s in your best interest to replace a serpentine belt before it breaks.
We recommend that you regularly check your serpentine belt for signs of wear, such as every time you have your oil changed. If you see any cracks or fraying, it’s best to replace the belt before it breaks. Listen for signs of wear too. A squealing belt may need to be replaced.
TJ's recommends that you plan to replace your vehicle’s serpentine belt as preventive maintenance every 50,000 to 60,000 miles. If you notice that the belt is cracked or frayed, replace it right away.
Refer to your vehicle’s owner manual for recommended service intervals about the manufacturer’s recommendations for your vehicle.
Recommended every 50,000 to 60,000 miles or once every 4 years
Old serpentine belt is removed
All belt pulleys are checked for excessive wear and/or damage
New serpentine belt is installed and safety checked