Cylinder base gasket - paper, R68, R50/2 - R69S ►see details

Installed upto VIN numbers:
636 104 - R50/2
626 409 - R60/2
658 928 - R69S

The paper gasket is used on cylinders with a smooth cylinder flange.
When the cylinder flange has grooves, use the aluminum cylinder base gasket.

Cylinders with a grooved flange (0.1 mm deep at a distance of 2 mm) were used from following VIN numbers:

636 101 - R50/2
626 680 - R60/2
658 928 - R69S