Please consult the following documents for more information about the CBS-KT-4 Master Cylinder Seal Kit:
Kit contains the following approved components:
- MS28775-012 O-Ring
Product Details:
- Fits many Cessna 120, 140, 170, 170A model aircraft
- One kit required per brake assembly or master cylinder
- Replaces P/N TCBMD
- Manufactured by McFarlane Aviation, Inc.

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