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A540H 1988-1991
steel plates serve a dual role — not only as reaction surfaces
VENTURE APV 1997-2000 4 SP FWD V6 3
SLX 1996-1999 4 SP RWD V6 3
TAURUS 2013-2016 6 SP 4WD V6 3
boost valve kit sonnax medium ratio 4l30e ml4 Transmission_F4 A540H 1988-1991Boost 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$ 18.00
US$ 32.00
