Oversized Pressure Regulator and Boost Valve kit.
#104520-07K. GM 6L45E, 6L50E, 6L80E, 6L90E units can suffer from high or low line pressure and or overheated transmission issues if the pressure regulator valve or other valve train components are worn, damaged, or stuck. Most frequent symptoms are slipping clutches or overly harsh shifting. The overheating is caused by low or no cooler/lube flow. Installing the Sonnax oversized pressure regulator valve kit 104520-07k will restore OE function to the pressure regulator circuit.
Features & Benefits
Valve is hard coat anodized to reduced wear
Oversize pressure regulator valve and matched spring restore OE function to the pressure regulator circuit