DIRECT OEM REPLACEMENT — Exact replacement for John Deere OEM part number R212837, designed to fit Carraro front axles on John Deere tractors. This 12-tooth final drive sun pinion yoke with shaft meets or exceeds original specifications for performance and durability.WIDE COMPATIBILITY — Perfect fit for John Deere tractor models: 5105, 5205, 5220, 5225, 5303, 5320, 5325, 5403, 5420, 5425, 5520, 5525, 5620, 5625, 5720, 5725, 5076EF, 5083EF and more 5E/6E series tractors with Carraro front axles.PREMIUM CONSTRUCTION — Manufactured from high-strength alloy steel with precision machining and heat treatment (carburizing and quenching) for maximum wear resistance and impact strength. Net weight: 2 kg (4.4 lbs).CRITICAL POWER TRANSFER COMPONENT — Essential part of the front axle final drive system, connecting the differential to the sun gear and transferring power to the front wheels. Restores proper 4WD operation and eliminates power loss in the final drive train.EASY INSTALLATION & RELIABLE PERFORMANCE — Direct fit with no modifications required. Engineered for a perfect fit and long service life. Backed by a 6-month warranty against manufacturing defects. Ideal for farm repairs, maintenance, and tractor restoration projects.