From the model year 1997 to 2003 the INFINITI QX4 has various engines with either a timing belt or a timing chain. However, all of its engines are interference.
Scroll down to see specific data for your model year below.
The timing belt (or chain) maintains the proper synchronization between the various engine components in a combustion engine.
If the belt or chain stretches or breaks, it can lead to catastrophic engine damage.
Timing belts have a recommended replacement interval, while timing chains are generally rated for the engines lifetime, although they need to be inspected occasionally.
| Year | Engine | Belt Or Chain | Interference | Service Interval |
|---|---|---|---|---|
| 2003 | 3.5L | Timing Chain | Interference | Lifetime |
| 2002 | 3.5L | Timing Chain | Interference | Lifetime |
| 2001 | 3.5L | Timing Chain | Interference | Lifetime |
| 2000 | 3.3L | Timing Belt | Interference | 60k miles |
| 1999 | 3.3L | Timing Belt | Interference | 60k miles |
| 1998 | 3.3L | Timing Belt | Interference | 60k miles |
| 1997 | 3.3L | Timing Belt | Interference | 60k miles |
TimingBeltInfo.com is a website designed to quickly find the timing belt (or chain) information for your vehicle.
Understanding the timing system in your vehicle or a possible purchase can save you money and headaches in the long run.
When in doubt, always consult with a professional mechanic.
Also, you can consult the vehicle's owner's manual.