GM Timing Belts

Timing Belts Keep Things Moving On Time

Strange engine noise or stalling at startup can mean your timing belt is wearing out. This belt controls the rhythm of your engine’s internal parts, and when it fails, it can cause expensive damage. It’s one of those things that doesn’t give much warning before it goes. At Classic Arlington Parts, we help you stay ahead of problems with genuine Hummer replacements.

What A Timing Belt Actually Does

The timing belt keeps your camshaft and crankshaft rotating in sync. It helps valves open and close at the right moment, so air and fuel flow properly. In models like the H3 and SUV H2, the belt supports smooth engine operation while reducing vibration and misfiring.

Why You Need A Genuine Hummer Belt

Aftermarket belts may be cheaper, but they rarely match the durability or precision of a factory-made one. The materials and construction are made to fit your Hummer engine and perform under load. We stock OEM timing belts that work better and last longer than generic substitutes. When it’s time for service, inspect your water pump too, since both often wear out together.

When To Replace Yours

Most timing belts need replacing every 60,000 to 100,000 miles, depending on your driving habits and model. If you hear ticking sounds, see oil leaks near the belt cover, or notice engine issues, don’t wait. Swapping it out early is a lot cheaper than repairing engine damage later.

At Classic Arlington Parts, we carry genuine Hummer timing belts to keep your engine running the way it should.