Kleinn Hex Adapter - 3/8In F NPT to 1/2In M NPT

Name: Kleinn Hex Adapter - 3/8In F NPT to 1/2In M NPT
Brand: Kleinn Air Horns
SKU: KLE51238R
Price: 4.99 USD
Availability: InStock

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Kleinn Air Horns

Kleinn Hex Adapter - 3/8In F NPT to 1/2In M NPT

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SKU: KLE51238R

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The Kleinn Model 51238R is a heavy-duty pneumatic hex adapter ...Read More

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$4.99 $5.58

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Car Wheel Size Chart

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

225 = Tire width in mm
45 = Aspect ratio (height as % of width)
R17 = Rim diameter in inches

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Product Details

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Sizing & Fit

The Kleinn Model 51238R is a heavy-duty pneumatic hex adapter 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 3/8" Female NPT threaded opening on one side and a 1/2" Male NPT threaded end on the other. This compact fitting allows you to easily adapt oversized tank ports or component lines, maximizing plumbing efficiency and ensuring a reliable air path for your air horns and heavy-duty onboard accessories.

Installation Instructions
Installation Instructions