The ONLY way to determine the correct tooth count needed for the E3 gear is to remove and count the teeth on your old gear. The outside of the gear will have 48 teeth. Remove and count the smaller underside of the gear.

BMW-US E23 Three Odometer Gear Set
( view instructions )
There are two tooth count options for this application in the US . E3 gear has 48 teeth on the outside and then either 17 or 19 teeth on the underside gear, original gear is amber in color. (Must count teeth on original gear before ordering)
$65.00 Select a style:

BMW-US E23 Individual Odometer Gears
( view instructions )
E1 gear is always a 12 tooth drive gear, E2 is always the second gear 48x12 with flat back (black in color), E3 gear has 48 teeth on the outside and then either 17 or 19 teeth on the underside gear, original gear is amber in color. (Must count teeth on original gear before ordering)
$25.00 Select a style:

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