When should the timing belt be replaced on a Honda 3.5 V6?

Typically, replace every 105,000 miles (169,000 km) or every 7 years, whichever comes first.

The Honda 3.5 L V6 family (the J-series) powers models such as the Accord, Odyssey, Pilot, MDX, and Ridgeline. The timing belt drives the camshafts and, in many configurations, the water pump as well; a belt failure can cause catastrophic engine damage in an interference engine. Always check your specific model/year in the owner's manual or with a dealer to confirm the correct interval, as some later variants may use a timing chain or have different service schedules.

Timing belt replacement schedule for the 3.5 L V6

Below is a general guideline used by many Honda models with the 3.5 L V6. Individual schedules can vary by year and variant, so use these as a baseline and verify against your manual.

• Recommended replacement interval: 105,000 miles (169,000 km) or 7 years, whichever comes first.


• Always consider checking if the water pump, tensioners, and idler pulleys are included in a timing belt kit offered by the service provider.


• Some older or regional variants may show slightly different intervals; always confirm with your vehicle’s documentation or a Honda service bulletin.

Because the timing belt drives critical components and sits behind protective covers, following the manufacturer’s schedule helps prevent sudden failures and costly repairs. If you’re unsure about your exact model, schedule a professional inspection and ask for a belt kit that includes the water pump and tensioners.

What should be replaced during a timing belt service

When you replace the timing belt, it’s common practice to service related components at the same time to reduce future labor costs and prevent related failures.

• Timing belt itself


• Water pump (often driven by the timing belt)


• Tensioner and idler pulleys


• Camshaft and crankshaft seals, as applicable


• Coolant flush and refill (coolant should be renewed when the belt/pumps are serviced)


• Thermostat (if accessible or recommended by the shop)

Replacing these components together minimizes the risk of subsequent belt-related failures and may save on labor if the access is already open for the belt replacement.

Model-specific notes and exceptions

Engine configurations evolve over model years. While many Honda 3.5 L V6 engines used a timing belt with a 105,000-mile/7-year interval, some later configurations may employ a timing chain rather than a belt. Chains generally do not require a fixed mileage replacement but should be inspected for wear per the maintenance schedule.

Are you driving a newer model or a chain-driven variant?

To be certain, verify with your vehicle’s VIN and the official owner’s manual or consult a Honda dealer service department. If your model year uses a belt, follow the 105,000-mile/7-year interval; if it uses a chain, follow the chain inspection and replacement guidance provided by Honda for that specific configuration.

Warning signs that the timing belt may be nearing failure

Even within the recommended interval, wear can occur earlier due to heat, oil leaks, or poor maintenance. Look for these indicators that warrant immediate inspection or service.

• Squealing, chirping, or grinding noises coming from the engine bay, especially near the timing belt area


• Engine misfires, rough running, or reduced performance


• Oil or coolant leaks around the belt covers or water pump area


• Engine misstart or failure to crank due to a belt jumping or breaking


• Overheating or coolant loss potentially linked to a failing water pump

If you notice any of these signs, stop driving the car and have it inspected by a qualified technician as soon as possible to avoid severe engine damage.

Summary

The practical rule for most Honda 3.5 L V6 engines is a timing belt replacement at 105,000 miles or 7 years, whichever comes first, with a belt kit often including the water pump and tensioners. Always confirm the exact interval for your model year and configuration, as some variants may use a timing chain. When performing the replacement, consider replacing the water pump, tensioners, and seals, and flush the cooling system as part of a comprehensive service. Stay alert for warning signs that the belt may be failing and consult a dealer or qualified shop if in doubt.

How long do Honda V6 timing belts last?

60,000 to 100,000 miles
Generally, a Honda's timing belt will last 60,000 to 100,000 miles.

Can a Honda timing belt last 150,000 miles?

Replace it on time to avoid engine damage. Rubber ages even if you don't drive much. For many Honda models with timing belts, a practical rule is about 105,000 miles or 7 years, whichever comes first. Some severe-use or hot/cold climates call for shorter intervals; older Honda manuals list time-based limits as well.

How much does it cost to change a timing belt on a Honda Accord V6?

Timing Belt Replacement Cost
A new timing belt for a Honda Accord costs around $200 but with labor, the average replacement cost is closer to $600 or $700.

Does the Honda 3.5 have a timing belt or chain?

Most Honda 3.5L V6 engines use a timing belt, though some later models and different engine configurations (like four-cylinder engines) may use a timing chain. The 3.5L V6 is typically equipped with a timing belt, which is an interference engine that requires regular replacement to avoid catastrophic damage. 
You can watch this video to learn about the timing belt replacement process for a 3.5L V6 engine: 56sRepair GeekYouTube · Sep 3, 2020
Honda 3.5L V6 engine (J35) 

• Timing Belt: The J35 is the engine used in most 3.5L V6 Honda models, including the Odyssey, Pilot, and Accord, and it uses a timing belt. 
• Replacement Interval: The timing belt should be replaced at recommended intervals, typically between 60,000 and 100,000 miles, and often at the same time as the water pump and tensioners, as they wear out together. 
• Interference Engine: This engine is an interference engine, meaning if the timing belt fails, the pistons can collide with the valves, causing severe engine damage. 
• Common Models: This applies to models like the Accord, Odyssey, and Pilot from roughly 2003-2017, but you should always verify the specific engine in your vehicle. 

This video shows the steps involved in replacing the timing belt and water pump on a Honda 3.5L V6 engine: 57sOldSoulMillennialYouTube · May 22, 2024
What to do

• Check your specific model: While most 3.5L V6s have a timing belt, it's always best to confirm for your specific make, model, and year by checking your owner's manual or looking up your VIN. 
• Replace on schedule: Be proactive about replacing the timing belt as recommended to prevent expensive engine damage. 
• Replace related components: When replacing the timing belt, it's highly recommended to replace the water pump, idlers, and tensioners at the same time, as they are often located behind the same cover and wear out around the same mileage. 

You can also watch this video to learn how to replace the timing belt and water pump on a Honda Odyssey 3.5L V6 engine: 57sRust Belt AutoYouTube · Jul 16, 2025