Threaded Screw Plug for Engine Block and Hydraulic System Sealing SKU: QT0636302031

A missing or damaged screw plug creates immediate problems—oil leaks that coat everything in dirt, contamination that enters through open ports, and pressure loss that reduces system performance. This threaded screw plug provides the reliable seal needed to close off unused ports and maintain system integrity.

Key Benefits

• Precision-cut threads ensure tight sealing without cross-threading or stripping
• Quality materials resist cracking and corrosion from exposure to hydraulic fluids and engine oils
• Engineered to handle pressure cycling and vibration without backing out
• Universal design fits common threaded applications across multiple equipment brands

Whether you're sealing an unused hydraulic port, closing off an engine block opening, or preventing contamination in hydraulic systems, this plug delivers the permanent seal your equipment needs. S&H Parts has been helping customers solve sealing problems since 1969—call us if you need help confirming thread pitch or application fitment.