5459092 caterpillar:cylinder CYLINDER & LINES GP-STICK

Dorman M630881 Brake Master Cylinder
Dorman Manufactured to strict engineering quality standards, each Brake Master Cylinder meets S.A.E. specifications || Cylinder housing is constructed from high-quality cast iron or aluminum for long-lasting durability || All rubber components are made of high-quality EPDM compound for resistance to glycol-based brake fluid || Direct replacement for a proper fit || Original Equipment (OE) Number: 5459092, 5459187