Side Gear, long. Fits Case 480C, 480D, 580C, 580D tractor loader backhoe transmission transaxle ring & pinion. Replaces A51900A50989 SKU: A50989$291.00PriceQuantity*Out of StockNotify When AvailableVendor IDPAI200No Reviews YetShare your thoughts. Be the first to leave a review.Leave a Review