Description
A reliable breather adapter is essential for any forced induction or crankcase ventilation system—it ensures proper pressure regulation while maintaining a sealed connection. The K9027 slip-on fitting provides a clean, secure transition from your 1-3/8″ breather tube to 12 AN male ports, eliminating the risk of vacuum leaks that can compromise engine performance. Whether you’re tuning a street machine or building a dedicated race engine, this aluminum adapter delivers the precision fitment and durability your system demands.
- 1-3/8″ breather tube inlet
- 12 AN male outlet
- Aluminum construction
- O-ring sealed
- Set screw retention
- Natural finish
- Bolt-on installation
- Individual unit






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