Billet Alm Threaded Cap Assembly 6-Bolt Red

The JAZ 391-725-06 Billet Aluminum Threaded Cap Assembly with 6-bolt configuration is a precision fuel filler cap system engineered for motorsports, marine, and industrial applications requiring secure, corrosion-resistant fuel containment. The red anodized aluminum construction provides both aesthetic distinction and a hard-coat protection layer that resists oxidation and chemical degradation in high-vibration and corrosive environments. This screw-on design delivers positive mechanical security—the threaded engagement eliminates accidental fuel cap loss during vehicle operation or transport, a critical concern for racing teams, offshore vessels, and off-road recovery operations.

The 6-bolt pattern ensures compatibility with standard JAZ fuel cell installations and aftermarket tank systems across the motorsports industry. Billet aluminum construction—machined from solid stock rather than cast—eliminates internal voids and structural weak points, delivering superior tensile strength under pressure cycling. At 0.94 lbs and measuring 5.9 × 3.8 × 6.35 inches, the assembly integrates seamlessly into tight engine bays and custom fuel system layouts. The threaded cap mechanism provides reliable sealing without requiring constant replacement gaskets, reducing maintenance downtime on race vehicles and field-deployed systems. Red anodizing serves dual purpose: visual fuel system identification per motorsports standards and enhanced UV resistance for extended outdoor storage.

This assembly is purpose-built for racers, fabricators, and operators who demand precision engineering in fuel containment. Professional motorsports teams rely on JAZ fuel systems for repeatability and safety under extreme conditions—high-speed cornering, multi-hour endurance events, and aggressive terrain. Offshore and marine operators benefit from the corrosion-resistant anodize finish in salt-air environments. Fabricators appreciate the dimensional precision and 6-bolt compatibility when integrating auxiliary fuel cells into trucks, buggies, and emergency response vehicles. The JAZ 391-725-06 replaces generic plastic caps with purpose-engineered hardware designed to withstand real-world operational stress.