Ram 1500 Serpentine Belt Replacement Guide for 2011-2018 Models
Keep your Ram running strong by learning to spot a failing serpentine belt and choosing the right replacement.
- Inspect your belt at every oil change for cracks and fraying to avoid being stranded.
- A squealing noise is the most common early warning sign of a worn or slipping belt.
- For a lasting repair, inspect the tensioner and idler pulleys and replace them if they feel rough or make noise.
- Driving with a broken serpentine belt is not recommended as it will cause the engine to overheat and lose power steering.
Is Your Ram's Serpentine Belt Failing?
A serpentine belt wears out over time and will give you warning signs before it breaks completely. Ignoring these signs can leave you stranded. Look and listen for these common symptoms.
Key Failure Symptoms
- Squealing or Chirping Noises: A high-pitched squeal from the engine, especially when you first start the truck or make sharp turns, is the most common sign. This noise means the belt is slipping.
- Visible Damage: Look at the belt. If you see cracks, frayed edges, missing chunks, or a smooth, shiny surface on the ribbed side, it's time for a replacement.
- Accessory Problems: If your headlights dim, your battery light comes on, the A/C blows warm air, or your power steering feels heavy, the belt may not be spinning those components properly.
- Engine Overheating: The serpentine belt drives the water pump. If the belt fails, the engine can overheat very quickly, which can cause serious damage.
Choosing the Right Aftermarket Belt
You don't have to buy the OEM Mopar belt, but quality matters. Aftermarket brands often meet or exceed OEM standards. Here’s a breakdown of available brands.
Premium Aftermarket Brands: Gates & Continental
Brands like Gates and Continental are top-tier choices trusted by many mechanics. They are often the original manufacturer for many car companies and are known for their durability and quiet operation. The well-regarded Goodyear Gatorback belt is now sold under the Continental brand. For most Ram owners, these brands offer the best combination of quality and value.
Quality Aftermarket Brands: Dayco & INA
Dayco is another well-known brand that provides reliable, quality belts. Many owners and shops use them without issue. INA is a major OEM supplier, especially for tensioners and bearings, and their belts are also made to high standards.
Standard Aftermarket Brands: Crown Automotive
Crown Automotive specializes in parts for Chrysler vehicles, including Ram. They can be a cost-effective option for standard repairs.
A Note on Mopar (OEM) Belts
The Mopar belt is a safe, reliable choice. Notably, a technical service bulletin (TSB) was mentioned for some 2011 5.7L Hemi engines that had minor pulley misalignment from the factory. In these specific cases, some owners found that only the Mopar belt would resolve a persistent squeaking noise. If you have a persistent squeak that new aftermarket belts and healthy pulleys don't fix, the OEM belt might be the solution.
Pro Tip: Replace the Tensioner and Pulleys
The belt tensioner and idler pulleys don't last forever. A worn-out tensioner can't keep the belt tight, causing slippage, while a seized pulley can shred a new belt instantly. It is highly recommended to inspect the tensioner and idler pulleys when you change the belt. If they feel rough when spun by hand or make a grinding noise, replace them. Many brands sell convenient kits that include the belt, tensioner, and pulleys.
Cost to Replace a Ram 1500 Serpentine Belt
Replacing a serpentine belt is an affordable repair. Prices vary based on your engine and the brand you choose.
| Part or Service | Estimated Cost |
|---|---|
| New Aftermarket Belt | $21 - $73 |
| New OEM (Mopar) Belt | $45 - $80 |
| Shop Labor | $71 - $105 |
| Total Professional Replacement | $110 - $185 |
Frequently Asked Questions
When should I replace my Ram 1500's serpentine belt?
Most manufacturers recommend inspecting the belt regularly and replacing it between 60,000 and 90,000 miles. However, you should replace it immediately if you see signs of wear like cracking or fraying, or hear persistent squealing.
Is this a difficult DIY job?
No, for most people with basic hand tools, this is an easy job that takes less than an hour. The main step is using a long-handled ratchet or breaker bar to release the spring-loaded tensioner, which allows you to slip the old belt off and the new one on. Always take a picture of the belt's routing before you start.
What's the difference between belts for the 3.6L, 4.7L, and 5.7L engines?
The different engines in the 2011-2018 Ram 1500 have different accessory layouts, so they require belts of different lengths. You must use the correct belt for your specific engine. The routing pattern of the belt around the pulleys is also unique to each engine.
My new belt is squeaking. What's wrong?
If a new belt is squeaking, the problem is likely not the belt itself. The most common causes are a weak tensioner that isn't providing enough pressure, a misaligned pulley, or fluid (like oil or coolant) that has leaked onto the pulleys. Always check the tensioner and pulleys when replacing a belt.
Helpful Videos
Technical Specifications
OEM Part Numbers: 4593852AB
Varies by engine (3.6L V6, 4.7L V8, 5.7L V8). Belts are specified by the number of ribs and the overall length (e.g., 6PK2020). Always verify the correct part number for your truck's specific engine and configuration.
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.
- Ram 1500:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Ram's Serpentine Belt Failing?
- Key Failure Symptoms
- Choosing the Right Aftermarket Belt
- Premium Aftermarket Brands: Gates & Continental
- Quality Aftermarket Brands: Dayco & INA
- Standard Aftermarket Brands: Crown Automotive
- A Note on Mopar (OEM) Belts
- Pro Tip: Replace the Tensioner and Pulleys
- Cost to Replace a Ram 1500 Serpentine Belt
- Frequently Asked Questions
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