Sonnax 122740-24K Features:

The secondary pressure regulator valve on the Aisin Seiki AS66RC can often wear out. Deterioration at the balance spool end allows for fluid loss resulting in high line pressure, harsh shifts and overheating due to reduced cooler/converter flow. Wear in the boost sleeve can result in converter pressure bleeding into the EPC.

Restore proper hydraulic integrity of the circuit by reconditioning the bore and installing Sonnax oversized secondary pressure regulator valve kit 122740-24K.