Earl's Performance Ano-Tuff Shut-Off Valve

Earl's Performance Ano-Tuff™ Shut-Off Valves deliver race-proven fluid control for motorsport, high-performance street, and competition applications. Built on a legacy that began in 1955 when founder Earl Fouts pioneered the use of aviation-grade plumbing components in the racing industry, these shut-off valves carry that same commitment to precision engineering and long-term reliability.

The defining technology of this product line is Earl's proprietary Ano-Tuff™ hard-coat anodizing process. Unlike standard surface anodizing, this exclusive treatment penetrates deep into the aluminum substrate to create a hardened, corrosion-resistant barrier engineered to outlast the demanding conditions of racing and high-performance use.

Key Features:

• Quarter-turn lever design for fast, positive on/off flow control
• Available in aluminum and brass construction to accommodate a wide range of plumbing setups and fluid types
• Ano-Tuff™ exclusive hard-coat anodized finish penetrates aluminum for superior wear and corrosion resistance
• Precision-machined internals engineered for leak-free, long-service performance
• Compact, lightweight form factor ideal for tight installation environments
• Multiple port configurations available across the product line, including AN and NPT options
• Rated for high-pressure operation up to 350 PSI

Common Applications:

• Emergency fuel shut-off for racing safety systems and sanctioning body compliance
• Anti-theft device to prevent unauthorized fuel system activation
• Drain valve for routine fluid system maintenance and service
• Coolant system isolation and flow control
• Oil system management and drainage
• Transmission, differential, and auxiliary fluid control

Trusted by professional racing teams and enthusiasts worldwide, Earl's Performance Ano-Tuff™ Shut-Off Valves are a reliable, race-grade solution for virtually any AN plumbing system requiring dependable fluid control. Select from the available variants below to find the port configuration and material that best suits your build.