Product Details

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1 Boost Sleeve and 1 Boost Valve. Ø .566"/.523". The steel OEM valve in A340, A340E/F transmissions reciprocates within the cast aluminum sleeve, wearing the sleeve. After this wear becomes severe, it does not operate properly, causing soft upshifts and delayed engagement. Sonnax offers two replacement boost valve and sleeve kits 97855-23K and 97855-30K to restore proper operation. Features & Benefits: Sleeves are made from high-quality aluminum for better wear resistance. Hard coat anodized aluminum valve prevents wear. Eliminates leaks from the manual valve and TV circuit.