The MGM Brakes 1621901 Air Brake Chamber is a high-quality automotive tool designed for use in vehicles with a 2.25" welded yoke. Manufactured by MGM Brakes, this air brake chamber features a durable construction and precise engineering to ensure optimal performance. With the manufacturer part number 1621901 and eBay interchange part number SC20LCW, this product is a reliable choice for vehicle maintenance and repair.