Crankshaft Seal - BMW R Airhead; 11 11 1 338 342 / EnDuraLast
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Part #: CShaft-Seal342

Crankshaft Seal for BMW R Airhead (100m OD x 80mm ID x 10mm H)

Vehicle Manufacturer: BMW
Application: BMW R Airhead
Make/Model: BMW R45, R50, R60, R65, R75, R80, R90, R100
Model Years: 1969-1996
Manufacturer #: 11 11 1 338 342
NOTE: Replace flywheel O-Ring Part No:FW-ORing093 when replacing this main seal.

(See APPLICATION TABLE tab to verify vehicle fitment)

Brand: Made in Germany
BMW List Price $25.93
EME Price $19.50
You save $6.43!

Part #: CSHAFT-SEAL342

Application Table
The seal must be preformed to the flywheel (1970-1980) or to the flywheel guide ring (1981-1995).

The seal is not pre-shaped and in some cases can be pushed on. If the shaft is not rounded or chamfered you must pre-shape the seal prior to installation - usually attained by pushing the seal into the drift to install it.

Note that the new seal is only used on the R100GS (swing arm with no oil). If this seal is used on models with swing arm (R80 - R100RT), the oil will transfer from the swing arm into the gearbox. The vent passage in the gearbox cover must be blocked on all R100GS models.

The seal is pre-shaped when fitted on the installation arbor. Use caution and ensure that the spiral on the sealing lip is not damaged. The new seal will seat in rapidly if installed dry.

See installation tips here (Courtesy - Brook Reams)

Please see BMW Service Information Document

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