To learn how to configure your system, CLICK HERE

AN WATER NECK ADAPTERS

Covert any existing water neck to -16AN or -20AN.

No Welding. No Clamps.

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AN THERMOSTAT HOUSINGS

Take your AN conversion to the next level.

Available for SB/BB Chevy, LS, & SB/BB Ford

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-16AN & -20AN Hose Ends & Fittings

Premium -16AN and -20AN hose ends and fittings built for maximum performance and durability. The perfect fittings designed for use in our AN Cooling System Conversions.

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-16AN & -20AN Hose

Premium -16AN and -20AN hose designed for strong, consistent fluid flow. Available by the foot in your choice of black nylon or stainless steel braid.

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ORB TO AN ADAPTERS

Precision ORB to AN adapters designed for secure sealing and easy integration with AN components.

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NPT TO AN ADAPTERS

Durable NPT to AN adapters with short reach threads make integrating AN components with NPT ports simple and dependable.

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HOSE BARB TO AN ADAPTERS

A universal solution for converting metal or plastic hose barbs to AN male flare. Designed for quick, reliable connections across fluid systems.

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HEATER HOSE TO AN CONVERSION

Upgrade your heater system with components designed to replace rubber hose and clamps with AN-style fittings and hose.

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-16AN & -20AN IN-LINE FILLER AND COUPLERS

A compact AN in-line filler system designed for a clean radiator setup. Fits AN applications in-line with the upper hose or straight off our 90° Thermostat housing with a coupler.

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Replacement Parts and Tools

Everything you need to install your AutoPlumb AN Conversion Kit

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