A Dodge Durango Owner's Guide to the Serpentine Belt (2017-2025)
Everything you need to know before replacing the serpentine belt on your V6 or V8 Durango.
- A squealing noise often points to a weak belt tensioner, not just a bad belt; consider replacing them together.
- Premium aftermarket brands like Gates and Continental offer OEM-quality or better performance for a reasonable price.
- If the belt breaks, you will lose power steering and the engine will overheat quickly; pull over immediately.
- Visually inspect the belt for cracks and fraying at every oil change to catch problems before they leave you stranded.
Is Your Durango's Serpentine Belt Failing?
A serpentine belt is a wear-and-tear item. It's made of durable rubber, but over tens of thousands of miles of heat and friction, it will eventually wear out. Ignoring the warning signs can lead to a sudden breakdown, potentially causing you to lose power steering and leaving you stranded with an overheating engine. Look and listen for these common symptoms:
- Squealing or Chirping Noises: 🎬 Watch this video to help identify where that squeak is coming from. This is the most common sign. A high-pitched squeal, especially when you start the engine or turn on the A/C, often means the belt is slipping because it's worn or the tensioner is weak.
- Visible Wear: Pop the hood and look at the belt. If you see cracks, frayed edges, missing ribs, or a shiny, glazed surface, it's time for a replacement.
- System Failures: If your power steering becomes heavy, your A/C stops blowing cold air, or your battery light comes on, it could be due to the belt slipping and failing to properly power those accessories.
Pro Tip: Check the Tensioner and Pulleys
Often, a squealing noise isn't just the belt's fault. The automatic belt tensioner, a spring-loaded part that keeps the belt tight, can weaken over time. When replacing your belt, it's a smart move to also replace the tensioner and any idler pulleys, especially if your Durango has over 70,000 miles. This can prevent the new belt from wearing out prematurely.
🎬 See this walkthrough on how to replace the 3.6L belt tensioner.Choosing the Right Aftermarket Serpentine Belt
You don't have to buy an expensive OEM Mopar belt from the dealer. High-quality aftermarket brands often meet or exceed OEM specifications and are trusted by professional mechanics. Here’s a breakdown of common brand tiers:
- Premium Brands (Gates, Continental): These are top-tier choices, widely regarded for their durability and quiet operation. Gates and Continental are often original equipment suppliers for many car manufacturers and are a reliable choice for a long-lasting, worry-free replacement.
- Standard Replacement (Dayco): Dayco is a well-known brand that offers good quality belts that get the job done. They are a solid, budget-friendly alternative to premium brands and are widely available.
- Economy / Specialty (Crown Automotive): Crown Automotive is another available option. While they are known in the Jeep community, they are less commonly discussed for Durango serpentine belts in forums compared to the other brands.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Belt | $33.52 - $70.16 |
| New OEM (Mopar) Belt | $60 - $80 |
| Shop Labor | $100 - $180 |
| Total Professional Replacement (Aftermarket) | $135 - $250 |
Known Issues: No Specific Recalls
As of early 2026, there are no specific recalls or widespread Technical Service Bulletins (TSBs) from Dodge for serpentine belt failures on the 2017-2025 Durango. Most issues reported by owners, like squealing, are related to normal wear of the belt and tensioner.
Frequently Asked Questions
When should I replace my Durango's serpentine belt?
There is no exact replacement interval, but a general guideline is to inspect it at every oil change and plan for replacement between 60,000 and 90,000 miles. If you live in a very hot or cold climate, the rubber can degrade faster. Visual inspection is the best guide.
What happens if the belt breaks while driving?
Your engine will immediately stop powering the alternator, water pump, and power steering. You will lose power steering assist, making the wheel very hard to turn. The battery will no longer charge, and the engine will begin to overheat within minutes. You should pull over safely and shut off the engine as soon as possible to prevent catastrophic damage.
Can I replace the serpentine belt myself?
Yes, this is a DIY-feasible job for someone with basic mechanical skills and tools. The key is having a long-handled ratchet or breaker bar to release the belt tensioner and carefully routing the new belt correctly. Always take a picture of the belt's path before you remove the old one.
How do I know which belt size I need?
The serpentine belt length can vary depending on your Durango's engine (3.6L V6, 5.7L V8, etc.) 🎬 Watch a step-by-step guide for 5.7L Hemi serpentine belt replacement. and specific options. The safest way to ensure you get the correct part is to use your vehicle's VIN or select your exact year, make, model, and engine when ordering.
Helpful Videos
Technical Specifications
OEM Part Numbers: 68495977AA
The correct belt length and rib count are critical and vary by engine (3.6L V6, 5.7L V8, 6.4L V8, 6.2L Supercharged V8). Always verify fitment with your specific vehicle details.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Dodge Durango: