Pressure Regulator Valve Repair Kit 6L8-VL-PR3 for All 6L45 6L50 6L80 6L90 2006-Up Replacement Part Number:T104741PK, A45507CPK, 6L8-VL-PR3, 6L8VLPR3 Applications:Fit For All 6L45, 6L50, 6L80, 6L90 2006-on2006 and newer General Motors vehicles equipped with 6L45, 6L50, 6L80 and 6L90 automatic transmissions often wear out the line pressure regulator (PR) valve and bore.