The Case IH 277640A1 is a genuine OEM rubber boot designed specifically for brake cylinders in a wide range of Case IH and International Harvester agricultural and industrial tractors. This durable boot protects the brake cylinder from dirt, moisture, and debris, ensuring optimal brake system performance and longevity. Essential for maintenance and repair, it maintains the integrity of the hydraulic brake system. Confirmed fitment for models including 3220, 4230, C100, CX series, and MXC series tractors.