394812R91-R Re-Mfg. Torque Amplifier Assembly Drive gear has 20 Teeth (Tooth Length = 1.050", Bearing Bore = 2.130"), (The back gear must be positively indentified by the measurement of the bearing bore & tooth length to prevent ordering errors). Mega-Cross: Replaces: 394812 IH 394812R91 IH Associated Items: Item Number Description Qty A-395915 Gasket Set, Torque Amplifier 1 Sections and Models: Transmission & Rear Axle > Torque Amplifier Parts Case-IH INDUSTRIAL/CONSTRUCTION: 2504 Case-IH TRACTOR: 340 Case-IH TRACTOR: 340 (W/O BELT PULLEY) Case-IH TRACTOR: 350 (IH) Case-IH TRACTOR: 460 (IH) Case-IH TRACTOR: 504 Please check availability prior to order! Thanks for viewing our listings. Please click "Ask A Question", or call us if you have a parts need that you do not see listed here. We will do our best to locate the parts you need, and make every effort to save you money. For parts information in English please call Chris at (813)365-0042. Gracias por ver nuestros anuncios. Por favor, envia un mensaje, o simplemente llamenos si necesita alguna's pieza que no ves listado. Mencionado Haremos nuestro mejor esfuerzo para localizar las piezas que necesita, y hacer todo lo posible para ahorrar dinero. Para espanol llame a Darcy a el (813) 365-0042.