#4 Stop Off Plug - Lisle

The Lisle 23440 #4 STOP OFF PLUG is an essential tool designed for professional automotive and industrial technicians to temporarily seal off lines during maintenance or repair. This specialized plug effectively prevents fluid loss, contamination, and air ingress, ensuring a cleaner workspace and more efficient system servicing. It is ideal for situations requiring quick and secure temporary line closure without damaging components.

Key Features

• Temporary Line Sealing: Engineered to provide a quick and reliable seal for various lines, preventing spills and maintaining system integrity.
• Durable Construction: Built to withstand the rigors of a professional shop environment, offering lasting performance and reliability.
• Prevents Fluid Loss: Effectively stops the flow of brake fluid, fuel, coolant, and other automotive or industrial liquids, minimizing mess and waste.
• Contamination Control: Helps to keep dirt, debris, and air out of open lines, safeguarding sensitive hydraulic and fluid systems.
• Versatile Application: Suitable for use on a range of line types and sizes where a #4 plug is applicable.

Applications

This stop off plug is invaluable for professional mechanics and technicians working on diverse systems. It is commonly used during brake line repairs, such as caliper or hose replacement, to prevent excessive fluid leakage and simplify bleeding procedures. Technicians can also employ it for fuel system maintenance, hydraulic line servicing (including power steering and clutch lines), or vacuum line repairs to isolate sections and prevent contamination or fluid drainage.