for 2 valve boxer models with 5-speed gearbox with "X" **
Standard Gearing ratio. We also offer a Taller 5th gear.
** Starting 4 / 1982, gearwheels marked "X" with 17,5 Degree gear teeth were used in the gearboxes. Previously, the teeth were at a 15 degree angle. It's important to check what version the transmission gears and shafts are. Since there are differences, the dimensions of these are to be rechecked prior to installation. 15 degree and 17,5 degree gearwheels are not compatible.
This Part is not available from BMW. Finely-grounded. Honed version for quiet operation. Installation only by skilled personnel using special tools.
Made in Germany - top quality.