Porsche 911-964 Odometer Gear Option 2 (US-Version mph)

The only way to determine which option you have is to remove the old gears and count the teeth.

25 tooth odometer gear. (E25) The diameter of this gear is 10.70mm or .421"

This gear rides on a large pod gear

There are 2 gears that operate the odometer.

1. 25 tooth odometer gear
2. 15 tooth large pod gear

We always recommend to replace both gears at the same time.