SPEEDFX Multi Purpose Fitting
SPEEDFX Multi Purpose Fittings: Precision Plumbing for Performance Builds
When a performance build demands reliable fluid routing, the fittings you choose can make or break the entire system. SPEEDFX has carved out a well-earned reputation in the multi purpose fitting category by combining quality materials, versatile design, and broad compatibility — making their fittings a go-to choice for builders tackling fuel, oil, coolant, and brake line plumbing alike.
Built from Aircraft-Grade 6061 Aluminum
SPEEDFX adapter fittings are manufactured from lightweight 6061 aluminum — the same alloy grade used in aerospace and motorsport applications. This material choice keeps weight to a minimum without sacrificing structural integrity, which matters on any build where every ounce counts. An anodized finish creates a corrosion-resistant surface, and the fittings are fully reusable , making them a smart long-term investment for both dedicated race cars and weekend project vehicles.
The 37-Degree Sealing Surface: No-Compromise Leak Protection
One of the defining technical features of SPEEDFX multi purpose fittings is their sealing geometry. All adapter fittings are compatible with most hose and hose end manufacturers and feature a 37-degree sealing surface that creates a leak-proof seal. This standardized angle means SPEEDFX fittings slot seamlessly into existing plumbing setups — whether you're adding a gauge port, changing line routing, or adapting between different AN sizes — without requiring a complete system overhaul.
A Wide Range of Configurations and AN Sizes
SPEEDFX's lineup spans adapter fittings, flare reducers, fuel line fittings, gauge fittings, hose end fittings, and O-rings and sealing washers , giving builders access to a comprehensive plumbing toolkit under a single brand. Their multi purpose fittings are available across a broad range of AN sizes — from compact -3AN and -4AN configurations up through larger -16AN couplers — covering the needs of fuel systems, oil coolers, transmission coolers, and more. Whether you need a straight flare union, a swivel adapter, or a specialty gauge fitting, the SPEEDFX catalog has an option sized to match.
Universal Fitment by Design
SPEEDFX multi purpose fittings are universal in nature and have no specific vehicle fitment restriction, giving builders all the drivetrain, engine, transmission, and exhaust plumbing accessories needed for a project. This universal approach is what puts them squarely in the "multi purpose" category — a single fitting can serve a fuel line on a classic muscle car one day and an oil cooler line on a track-prepped import the next. SpeedFX covers everything from performance plumbing and adapter fittings to service parts and more , making it easy to source a complete plumbing solution without mixing brands.
Why Choose SPEEDFX for Multi Purpose Fittings?
- Material: Lightweight, aircraft-grade 6061 aluminum construction
- Finish: Anodized coating for long-lasting corrosion resistance
- Sealing: 37-degree sealing surface for a secure, leak-free connection
- Compatibility: Works with most major hose and hose end manufacturers
- Reusability: Fully reusable fittings reduce long-term maintenance costs
- Range: Available in multiple AN sizes and configurations, including straight and swivel styles
Whether you're plumbing a new fuel system, tapping into an oil line for a gauge, or adapting between line sizes mid-run, SPEEDFX multi purpose fittings offer the reliability and versatility that serious builders depend on.