This unbranded 4600NO aftermarket front counterweight is a direct replacement for John Deere OEM part numbers AL71258 and L38449. Weighing 50 kg (110.23 lbs), it is engineered to provide optimal balance for John Deere 6000 and 7000 series tractors. Compatible models include 6100, 6200, 6300, 6400, 6506, 6600, 6800, 6900, 6010, 6110, 6210, 6310, 6410, 6510, 6610, 6810, 6910, 6020, 6120, 6220, 6320, 6420, 6520, 6620, 6820, 6920, 7200, 7400, 7600, 7700, 7800, 7210, 7410, 7510, 7610, 7710, 7810, 7220, 7320, 7420, and 7520. With dimensions of 430 mm length, 430 mm width, and 100 mm height, this robust counterweight ensures proper fitment and enhances tractor stability during various agricultural tasks.