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422in Thick) U140E U140F U141E U150E U151E U151F U240E U241E U250E
and free of harshness or noise
steel plates serve a dual role — not only as reaction surfaces
A540H 1988-1991
OEM Number: 1L2Z7D189A
boost valve kit sonnax medium ratio 4l30e ml4 Transmission_F4 422in Thick) U140E U140F U141EBoost Valve Kit for 4L30 E Medium Ratio, OE Code 448 In GM 4L30 E units, the original equipment (OE) boost valves are constructed from steel, while the sleeves are crafted from aluminum. As time passes, the valve grinds against the sleeve, leading to boost pressure leakage. This wear and tear results in reduced line pressure during boost, often culminating in burnt clutches. The Sonnax boost valve 54200 01K is designed to re establish precise control
US$ 17.47
US$ 113.97
