What size Serpentine Belt without AC would you need for a 1992 Cadillac Deville?

There isn't a single definitive answer to what size serpentine belt a 1992 Cadillac DeVille needs without AC. The belt size depends on the engine. The 1992 DeVille came with several different engine options (4.5L V8, 4.9L V8). Each engine has a different belt routing and therefore requires a different size belt.

To find the correct belt size, you must :

1. Identify your engine size. This information is usually found on a sticker under the hood or in your owner's manual.

2. Consult a repair manual specific to your 1992 Cadillac DeVille and engine. These manuals will show the correct belt routing and list the appropriate belt size. You can find these manuals online (e.g., eBay, Amazon) or at auto parts stores.

3. Check the belt itself (if still intact). The size may be printed on the belt.

Going to an auto parts store and providing them with your Vehicle Identification Number (VIN) is the easiest way to get the correct belt. They can look up the specifications based on your VIN and engine. Avoid just giving them the year and model, as the multiple engines make this inaccurate.