Therefore, instead of looking for multiple "fan belts," you should be looking for the serpentine belt. It's a single, long belt that wraps around all the pulleys. You might also hear it called a "drive belt".
To be absolutely certain and find the correct replacement, you should:
* Check your owner's manual: This will specify the correct belt size for your specific engine.
* Look at the old belt: The belt itself usually has a part number imprinted on it.
* Go to an auto parts store: Provide them with your vehicle's year, make, model, and engine size. They can quickly look up the correct serpentine belt for your 1985 Buick Riviera.
Don't assume the belt routing; always consult a diagram or the owner's manual to ensure correct installation to avoid damaging components.