3/8in Male Pipe Plug (2pk)

The XRP-XTREME RACING PROD. 3/8 inch Male Pipe Plug (2pk) is a precision aluminum fitting designed to seal 3/8 inch NPT ports on marine engines, fuel systems, and hydraulic lines. Built with an allen head for secure installation and finished in durable blue anodize, this two-pack provides reliable plug solutions for both routine maintenance and emergency repairs on the water.

These fittings are machined from aluminum alloy to resist corrosion in salt-water and freshwater environments. The NPT (National Pipe Thread) standard 3/8 inch connection ensures compatibility with stock marine fuel, coolant, and oil system ports found on most inboard and outboard engines. The blue anodized finish provides a protective oxide layer that extends service life and reduces oxidation common in high-humidity boating conditions. The allen head design allows controlled torque application during installation without stripping threads—critical when working with aluminum ports that cannot tolerate excessive force.

These plugs are essential for anglers and boat owners managing fuel system maintenance, winterization procedures, and custom fuel-line routing on performance and offshore vessels. Weekend fishermen use them to cap unused ports during engine modifications, while serious offshore operators keep spares in their tool kit for emergency port sealing if a fuel or coolant line ruptures underway. The two-pack quantity covers a typical engine block's orphaned ports or allows rotation between seasonal boats.

XRP-XTREME RACING PROD. specializes in aluminum fuel and cooling system components for high-performance marine applications where weight reduction and corrosion resistance are critical. This plug fits the brand's focus on reliable, precision-engineered fittings that withstand saltwater exposure and thermal cycling in demanding offshore environments.