Seal for pinion - 28 x 47 x 10 mm +Mark+Swiss ►see details
BMW part number: 33123038257
Hypoid oil resistant, custom-made (no standard part)
Brand: +Mark+Swiss+
This seal must prevent the oil from moving from the cardan shaft / swing arm to the final drive, therefore the open side must face forward.
Oil leakage to the final drive can have 2 other causes:
- via the screw thread of the threaded ring (PN33123038252)
- via the splines of the pinion and the coupling hub (PN33123038260)
Shown in this exploded view
Motorcycle Model
Motorcycle Model
Main Group
Main Group
33 Rear axle, suspension

