Honda Pilot Serpentine Belt Replacement Guide (2017-2023)
Is that squealing noise from your Pilot's engine a cause for concern? Here's what you need to know.
- Squealing noises are the first sign of a problem; don't ignore them.
- Access for DIY replacement is tight; it's a more challenging job than on many other vehicles.
- If your Pilot has higher mileage, consider replacing the belt tensioner at the same time as the belt to prevent future noise.
- High-quality aftermarket brands like Gates and Dayco are reliable alternatives to the more expensive OEM part.
Symptoms of a Failing Serpentine Belt
A serpentine belt rarely fails without warning. For a Honda Pilot owner, the first sign is almost always an unusual noise coming from the engine bay, especially on cold starts or during acceleration.
- Squealing or Chirping: This is the most common symptom. It's a high-pitched noise that may get worse when you turn on the A/C or turn the steering wheel. This sound is caused by the belt slipping on the pulleys.
- Grinding or Rumbling: A deeper grinding noise often points to a failing bearing in the belt tensioner or one of the accessory pulleys, not the belt itself. Since the belt has to come off to replace these parts, it's wise to inspect them whenever you hear noise.
- Visible Wear: Look at the belt itself. If you see cracks, fraying, missing ribs, or a glazed, shiny appearance, it's time for a replacement.
- Accessory Problems: If your battery light comes on, your A/C isn't blowing cold, or the steering becomes heavy, the belt may have snapped or is slipping badly. This is a critical failure.
Choosing the Right Aftermarket Belt
The original belt on your Pilot is likely a Mitsuboshi or Bando brand, as Honda often uses them as original equipment. When shopping for a new aftermarket belt, you'll find that the quality is often just as good as the original, and sometimes at a better price. The two most common high-quality aftermarket brands you will encounter are Gates and Dayco.
Pro Tip: Check the Tensioner
The automatic belt tensioner on the Pilot's 3.5L V6 engine can also wear out. Its internal spring can weaken, or its pulley bearing can fail, causing belt noise or premature wear. If your Pilot has over 75,000 miles, it's smart to replace the tensioner (OEM Part: 31170-RLV-A02) at the same time as the belt.
🎬 See this guide for replacing the Honda V6 belt tensioner.- Gates: Gates is a highly respected brand that is an OEM supplier for many car manufacturers, including for Honda's timing belts. Many professional mechanics and experienced DIYers prefer Gates for their durability and quiet operation.
- Dayco: Dayco is another major OEM supplier with a long history. They produce quality belts that meet or exceed factory specifications. While some users have reported noise issues in the past, Dayco states that modern EPDM rubber belts are very durable and that noise is often caused by other system issues like a weak tensioner or pulley misalignment.
For the 2017-2023 Honda Pilot, both Gates and Dayco are solid choices. Given the small price difference, you can choose either brand with confidence. The most important factor is ensuring you get the correct part number for your vehicle.
Estimated Replacement Costs
The cost to replace a serpentine belt can vary depending on whether you do it yourself or take it to a shop. Labor is the biggest variable.
| Item | Estimated Cost |
|---|---|
| OEM Honda Serpentine Belt | $50 - $70 |
| Aftermarket Serpentine Belt (Gates, Dayco) | $35 - $40 |
| Shop Labor | $70 - $100 |
| Total (Shop Replacement) | $105 - $140 |
Frequently Asked Questions
When should I replace my Pilot's serpentine belt?
Honda does not specify a strict replacement interval for the serpentine belt. Instead, it should be inspected during regular maintenance and replaced based on its condition. Most belts last between 60,000 and 100,000 miles. If you hear any noises or see any wear, it's time to replace it, regardless of mileage.
Is this the same as the timing belt?
No. The serpentine belt is visible on the side of the engine and runs the external accessories. The 2017-2023 Honda Pilot's 3.5L V6 engine uses a timing belt, which is located behind plastic covers and synchronizes the engine's internal components. Timing belt replacement is a much more complex and expensive job, typically done around 100,000 miles.
Is replacing the serpentine belt a DIY job?
Yes, it is possible for someone with mechanical experience. However, access is very tight on the 3rd generation Pilot. The job requires jacking up the vehicle, removing the passenger-side front wheel and fender liner, and using a long tool to release the tensioner. Many DIYers report it is more frustrating than expected due to the limited space.
🎬 Watch: Step-by-step serpentine belt replacement for the 3.5L V6.Are there any recalls for the serpentine belt on this Pilot?
No. As of early 2026, there are no specific recalls or Technical Service Bulletins (TSBs) from Honda or the NHTSA for the serpentine belt or tensioner on the 2017-2023 Honda Pilot. There is an unrelated NHTSA investigation into some of these model years for potential engine rod bearing issues, but this does not involve the belt system.
Helpful Videos
Technical Specifications
OEM Part Numbers: 31110-RLV-A02
6-Rib EPDM Rubber Belt
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.
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