Designed for clutch and small hydraulic master cylinder applications, this lightweight and compact master cylinder offers exceptional reliability for both industrial equipment and automotive systems. The aluminum construction ensures durability while maintaining a low weight, making it suitable for demanding heavy-duty fleet use. Its 5/8-inch bore size provides optimal fluid control and consistent performance. The improved plastic screw-on filler cap enhances fluid protection and simplifies maintenance, while the 1.4-ounce reservoir capacity ensures sufficient fluid volume for extended operation. This master cylinder is engineered to withstand rigorous environments, providing dependable service in both industrial machinery and automotive settings. Its versatile design makes it an ideal choice for custom builds, fleet maintenance, and heavy-duty applications where reliability and ease of service are paramount.