Upgrade your Chevrolet C20 Suburban's braking system with the ACDelco Professional Durastop Brake Master Cylinder. Designed with a 1.25-inch bore diameter and constructed from durable cast iron, this master cylinder is built to provide reliable service. The rust preventative finish ensures longevity and resistance to corrosion. This master cylinder, part number 18M1884, comes with a cap included and is compatible with OEM part numbers 19176494, 18010748, and 18014705. It features 2 ports and is not a vintage or universal fitment part. Manufactured in China, this ACDelco master cylinder is an excellent choice for maintaining the safety and performance of your vehicle's braking system. Exact item is shown. New open box without original packaging. Brake Master Cylinder, Professional, 1.250 in. Bore, Cast Iron, Chevy, GMC, Each. Made in China. No returns if installed. This item is a new, opened customer return. It has been inspected and passed quality control to insure the condition described and contents are accurate. Please review actual photos as stock photos are not the actual item, our photos are. You will ONLY receive exactly what is shown in photos, regardless of what might have originally been included. Please review our business policies in our store for information regarding returns, shipping and warranties.