What size is a 97 ford f150 starter bolts?

The size of the starter bolts on a 1997 Ford F-150 isn't a standardized size across all engines and variations. You'll need to consult your owner's manual or a repair manual specific to your truck's engine (e.g., 4.6L, 4.9L, 5.4L, 5.8L, 7.5L). The bolts could be various sizes like 1/2" or 9/16", and the thread pitch will also vary.

To find the correct size:

1. Consult your owner's manual: This is the best source. It might show a diagram or list the specifications.

2. Use a repair manual: A Haynes or Chilton manual for your specific year and engine will provide detailed information, including diagrams and bolt sizes.

3. Remove a bolt and measure it: This is the most direct method, but be sure to note the thread pitch as well (e.g., 1/2"-13 or 9/16"-12). Take it to a hardware store to match it.

Do not guess. Using the wrong size bolt can cause serious damage to your starter, engine block, or both.