#10 Steel Cap

The #10 Steel Cap by AEROQUIP is a critical fitting component engineered for high-pressure hydraulic and fuel system applications in automotive performance builds and heavy-duty engine modifications. Whether you're assembling a custom fuel injection setup, upgrading your vehicle's brake hydraulic lines, or integrating aftermarket power steering components, this steel cap serves as a protective termination point that prevents contamination, fluid loss, and system degradation. Mechanics and fabricators rely on AEROQUIP fittings to maintain system integrity during complex modifications where reliability cannot be compromised.

Manufactured from durable steel construction, the #10 cap is designed to seal #10 SAE hose ports and fittings with consistent thread engagement and minimal leakage risk. The compact dimensions (2.25 x 1.15 x 3.75 inches) allow for tight installation in confined engine bays and modified frame rails, while the 0.19 lb weight keeps your build's center of gravity optimized. AEROQUIP's precision engineering ensures that threads remain true under vibration and thermal cycling—critical factors in performance vehicles where pressure spikes and temperature swings are routine.

This #10 steel cap is ideal for custom fuel systems, turbo feed and return lines, transmission cooler installations, and any SAE #10 port closure where professional-grade sealing is required. Installation is straightforward: hand-thread the cap onto the fitting until hand-tight, then torque to manufacturer specifications using a wrench on the hex body. Technicians building LS swaps, big-block conversions, and turbocharged platforms standardize on AEROQUIP caps because they eliminate guesswork and reduce the risk of catastrophic fluid loss during test runs and road validation.