This transmission fill plug fits Mack TRL-107 5-speed, TRXL-107 and TRDXL-107 6-speed, and TRDL/TRDLG-107 and 1070 10-speed transmissions, sealing the fill opening to keep lubricant in the housing while still allowing level checks and refills. It is sold as a single unit.Interchanges:49AX133ZMack 49AX133GFP-3446FeaturesFits Mack TRL-107 5-speed transmissionFits Mack TRXL-107 and TRDXL-107 6-speed transmissionsFits Mack TRDL/TRDLG-107 and 1070 10-7 speed transmissionsSold pack of 1 eachTech SpecsSell pack: 1 EACHAdditional InformationFits: Mack TRL-107 (5-speed), TRXL-107 (6-speed), TRDXL-107 (6-speed), TRDL/TRDLG-107 and 1070 (10-7 speed) transmissions.Used in these Mack modelsTRDL / TRDLG 107 / 1070 TransmissionTRDXL-107 TransmissionTRL-107 TransmissionTRL-1076 / TRL-1078 TransmissionTRTXL-107 / 1070 TransmissionTRXL-107 Transmission