EVIL ENERGY 6AN Y Block Flare Fitting Adapter Union

EVIL ENERGY 6AN Y Block Flare Fitting Adapter is a black anodized 6061-T6 aluminum splitter that divides a single 6AN line into two 6AN outlets with a 60° split and 37° flare sealing.

Designed for automotive, motorsport, industrial, and custom fluid-routing projects, this Y-block flare fitting delivers a compact, pressure-rated way to branch a 6AN line. Its 9/16-18 UNF (6AN) threading and 37° flare sealing match standard AN hose ends; the anodized 6061-T6 body resists corrosion and keeps weight down. Rated to 4000 PSI and specified for extremes from -65°F to 252°F, the adapter works with many liquids and gases where a high-flow, durable splitter is needed.

How does this adapter ensure a leak-resistant connection?

The fitting uses a standard 37° flare sealing surface on each AN connection, which creates metal-to-metal contact with matching AN fittings for reliable sealing when torqued correctly. The threaded 9/16-18 UNF sockets accept 6AN hose ends and maintain alignment during assembly, reducing the chance of cross-threading or misalignment.

• 37° flare sealing for metal-to-metal pressure containment
• 9/16-18 UNF thread size compatible with 6AN fittings
• Machine-cut sealing faces to minimize leakage risk

What performance limits and temperatures can I expect?

This Y-block is engineered for demanding environments with a maximum working pressure of 4000 PSI and an operating temperature range from -65°F up to 252°F. Those specifications make it suitable for many hydraulic and fluid transfer applications, provided mating components share equivalent pressure and temperature ratings.

• Max working pressure: 4000 PSI
• Operating temperature range: -65°F to 252°F
• Compatible with many liquid and gas systems when paired with rated hoses

What construction and finish details affect installation and longevity?

Manufactured from 6061-T6 aluminum, the adapter balances strength and weight for vehicle and racing use. The black anodized finish improves corrosion resistance, reduces abrasion, and gives a low-gloss professional appearance that blends with engine-bay components.

• 6061-T6 aluminum body for high strength-to-weight ratio
• Black anodized surface for corrosion and wear protection
• Precision-machined threads and flares for consistent fitment

How will the 60° split affect routing and flow?

The Y-block directs flow into two paths separated by a 60° angle, which eases hose routing in confined spaces and reduces sharp bends that can restrict flow. While splitting flow divides volume between outlets, the straight-through AN ports and generous internal passages help preserve flow capacity compared with restrictive tees.

• 60° split angle improves hose routing and reduces kinks
• Symmetrical outlets for balanced distribution when both branches are used
• Designed for high-flow applications to minimize pressure drop

Who is this for: Builders, tuners, fabricators, and technicians who need a rugged, compact AN-style splitter for fuel, oil, coolant, or other compatible fluid systems will appreciate this EVIL ENERGY 6AN Y Block Flare Fitting. It’s aimed at anyone fitting 6AN lines where a durable metal-to-metal sealed branch is required—racecars, custom street cars, industrial rigs, or prototype plumbing setups—provided mating hoses and components meet the same pressure and temperature ratings.