Notes: 129150-25931 GEAR is original JOHN-DEERE product. 129150-25931 GEAR5 is commonly used in transmissions/axles/engines 3TNE78A-EMG, 3TNE82A-ECB, 3TNE82A-EPM, 4TNE84-EAD1, 4TNE84-EKRV, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849