Sonnax has introduced new valve kits for Aisin Seiki AS66RC and AS69RC transmissions. The drop-in K1 apply boost valve kit (part no. 122740-29K) and lockup boost valve kit (part no. 122740-30K) are available from Sonnax. The company says these kits can restore proper hydraulic control and renew line pressure performance in these Aisin Seiki transmissions.
Sleeves in both kits are manufactured from wear-resistant aluminum, and the kits come with Sonnax’s Drop-in Zip Valve parts, the company notes.