Shop for Aftermarket Mack CH/CHN/CHU Brake Chambers & Accessories. Enhance the stopping power of your Mack CH/CHN/CHU truck with top-notch brake chambers and accessories. These parts are built to be durable, these parts improve stopping distance, cut down on maintenance, and boost your truck's safety and performance. From tough brake chambers and adjusters to high-quality hoses and fittings, we ve got everything you need to keep your Mack running strong. Upgrade today and feel the difference in control and responsiveness.