Description
Transmission Breather Cap
The 21396-P20-000 is the OEM transmission breather cap used across numerous Honda applications. It vents the gearbox to manage internal pressure and helps keep moisture and contaminants out of the case. Ideal for restoration or routine service when the original cap is missing or damaged, this piece ensures proper ventilation and long-term reliability of the transmission.
Factory Part Number: 21396-P20-000
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