The BAL 25076-1 Slide-Out Drive Gearbox is an OEM BAL replacement gearbox assembly with mounting bracket that is used with several BAL slide-out motor assemblies.• Includes the dual 13-tooth sprocket• Dimensions: 6-1/2"L x 3-3/4"W x 3"H• Compatible with BAL Motor Assemblies: 225007, 225008, 21900000, 21900001, 21900002, 21900003Please note: Drip Tray is not included. Includes the dual 13-tooth sprocket Dimensions: 6-1/2""L x 3-3/4""W x 3""H | BAL 25076-1 Slide-Out Drive Gearbox with Mounting Bracket