Earl's Performance Carburetor Fuel Inlet Fitting

Earl's Performance Carburetor Fuel Inlet Fittings: Racing-Grade Precision at the Carb

When it comes to plumbing a carbureted engine correctly, the carburetor fuel inlet fitting is one of the most critical connection points in the entire fuel system. A poorly fitted or low-quality inlet fitting invites fuel leaks, inconsistent fuel delivery, and potentially dangerous situations under the hood. That's exactly why builders and racers who care about getting it right turn to Earl's Performance — a brand with more than seven decades of plumbing heritage behind every part it produces.

Carburetor fuel inlet fittings serve as the precision interface between your AN fuel line and the carburetor's threaded inlet port. Earl's engineers these connectors to exact tolerances, ensuring a sealed, leak-free junction that can handle the demands of both street-driven classics and full-race applications. The fitting must match both the AN line size on one end and the carburetor's specific inlet thread on the other — and Earl's catalog covers a wide range of configurations to make that match possible.

Materials Built for Reliability

Earl's Performance carburetor fuel inlet fittings are constructed from two core materials: anodized aluminum and natural-finish stainless steel. The anodized aluminum options are lightweight and corrosion-resistant, available in classic blue or blacked-out anodized finishes that look as good as they perform. The stainless steel variants bring extra durability for high-heat or harsh-environment installations where long-term corrosion resistance is paramount.

A Wide Range of Sizes and Connection Styles

Earl's offers these inlet fittings in a broad spectrum of thread sizes and AN port configurations to suit virtually any carbureted setup. Common examples from the Earl's lineup include:

• -6 AN male to 7/8"-20 thread — the standard Holley/Quick Fuel inlet size, available in both standard and Ano-Tuff black anodized finish
• -8 AN male to 7/8"-20 thread — for higher-flow applications demanding larger line sizes
• -6 AN male to 9/16"-24 thread — common on smaller carburetors and European-style carbs
• -6 AN male to 12mm x 1.25 and 12mm x 1.50 metric threads — for Weber, Mikuni, Solex, and other metric-inlet carburetors
• Banjo bolt styles in both stainless steel and aluminum for applications where a traditional straight or angled fitting won't clear the surrounding components

This depth of selection reflects Earl's longstanding philosophy of solving the real-world challenges that builders face, rather than offering a one-size-fits-all approach.

The Earl's Legacy Behind Every Fitting

Earl's Performance Products was founded by Earl Fouts in 1955, with a mission rooted in supplying military aircraft-grade plumbing components to the racing community. As that surplus market faded, Earl pioneered the development of purpose-built AN hoses and fittings for motorsports — essentially creating the performance plumbing aftermarket as we know it today. The brand's innovations include the patented Swivel-Seal self-indexing hose end, the introduction of flexible PTFE-lined stainless braided hose to racing in the 1960s, and a comprehensive catalog of special-purpose adapters that competitors have spent decades trying to replicate.

That same commitment to precision manufacturing carries directly into the carburetor fuel inlet fitting lineup. Whether you're building a show-quality street rod, refreshing a weekend cruiser, or assembling a dedicated race car around a Holley or Weber carburetor, Earl's has the inlet fitting to complete the fuel plumbing correctly and confidently.