Kleinn Hex Adapter - 3/8In F NPT to 1/4In M NPT

The Kleinn Model 53814R is a heavy-duty pneumatic hex reducer engineered to provide a secure, leak-free transition between different thread sizes within your high-pressure onboard air system. Featuring a premium, corrosion-resistant brass construction built to withstand demanding automotive environments, this universal component is designed with a 1/4" Female NPT threaded opening on one side and a 3/8" Male NPT threaded end on the other. This compact fitting allows you to easily adapt smaller lines, pressure switches, or accessories into standard 3/8" tank ports or manifolds, maximizing plumbing efficiency and ensuring a reliable air path for your air horns and onboard accessories.

Additional Information

Kleinn Model 53814A - Hex Reducer 3/8" Female - 1/4" Male NPT

Part Type

Tube Fitting

• 1/4" Male NPT
• 3/8" Female NPT
• Brass construction

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Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Air Compressor Components, Hex adapter - 3/8" F NPT to 1/4" M NPT