An Isuzu timing belt replacement isn't going to result in your car or SUV going any faster, getting any better gas mileage, or reducing exhaust emissions. What a new Isuzu timing belt will get you is the peace of mind that your engine isn't going to explode as you tool on down to the local Piggly Wiggly. If that sounds extreme, consider that the Isuzu timing belt operates your valvetrain. That valvetrain is in awfully close proximity to the pistons in your engine. If the Isuzu timing belt breaks, the twain shall meet, and you need a new engine. What about the Isuzu timing chain? Some of you may have engines that operate using an Isuzu timing chain rather than an Isuzu timing belt. Before you get too smug, consider that when your Isuzu timing chain wears, your vehicle will become slower, get worse gas mileage, and expel more pollution into the atmosphere. That's because your sloppy, worn out Isuzu timing chain is allowing the valves to open before they're supposed to (or after they're supposed to), reducing your engine's efficiency. No, you won't grenade your motor, but a bad Isuzu timing chain is going to cost you in gas and performance. The bottom line? You folks with an Isuzu timing belt, make sure you change the Isuzu timing belt at the mileage suggested by the manufacturer. You folks with an Isuzu timing chain, replace your Isuzu timing chain if your vehicle begins to show signs of improper timing that can't be corrected in the usual fashion. And both of you need to buy your new Isuzu timing belt or Isuzu timing chain from us to save a ton of money and get premium parts. You won't find a higher quality Isuzu timing belt or Isuzu timing chain for a lower price than you will right here.