Automatic Transmission Clutch inner Lip Seal (8623121) (23015880) Allison AT540, AT542, AT543, AT545, AT1545 Fourth Clutch 1970 - 1975 Allison 640, MT643, MT644, MT647, MT650, MT653, MT654 Forward & Fourth Clutch 1972-1993
Part #: IPN6-3284L