Sonnax transmission valves,4L30E boost valves

You are here: Home > TRANSMISSION PARTS AUTOMATIC TRANSMISSION KITS > GM Rear Wheel Drive > 4L30E > Sonnax Valves & Tools

Sonnax transmission valves

Sort By:

Page of 1

54200-12K 4L30E small ratio boost valve .564"

Restores line pressure boost, preventing burnt clutches and burnt band.
Direct replacement for OEM #066.
More Information

Competitors Price $32.90

Your Cost $32.90

5420001K 4L30E, AR25, AR35 VALVE ASSY, BOOST-MEDIUM RATIO

4L30E transmission medium ratio boost valve.
More Information

Competitors Price $56.18

Your Cost $56.18

5420006K 4L30E, AR25, AR35 VALVE ASSY, BOOST-LARGE RATIO

Restores line pressure, preventing burning of the clutches and the band. Direct replacement for OEM #264.
More Information

Competitors Price $50.98

Your Cost $50.98

5420014K 4L30E, AR25, AR35 VALVE ASSY, BOOST-SMALL RATIO

Restores line pressure, preventing burning of the clutches and the band.
Direct replacement for OEM #067.
More Information

Competitors Price $51.92

Your Cost $51.92

4 oversized pins, 8 E clips, 4 accumulator piston seals.
More Information

DISCONTINUED PRODUCT - ONLY 2 LEFT IN STOCK

Competitors Price $24.48

Your Cost $23.98

5475402 4L30-E (PWM ONLY) '00-UP SLEEVE, TCC REGULATOR VALVE

Competitors Price $52.72

Your Cost $52.72

Sonnax transmission valves