The John Deere AZ51919 is a genuine OEM needle bearing engineered for critical applications in John Deere agricultural and construction machinery. This high-quality component ensures smooth, durable, and reliable performance across numerous models, including compact utility tractors, row-crop tractors, and combines. Precision-manufactured to exact specifications, it features an outer diameter of 25.4 mm, an inner diameter of 19.05 mm, and a length of 25.4 mm, guaranteeing optimal fit and function for extended service life.