Kleinn 2121 Sealed Tank Mount Pressure Switch — 90 PSI On / 120 PSI Off, 1/4in M NPT

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SKU: KLE2121
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

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

Product Details

Product Description
Part Numbers
Sizing & Fit

About Kleinn Air Horns

Kleinn Air Horns engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Kleinn Air Horns lineup with fast shipping and expert fitment support — order with confidence.

Reliable Air Compressor Control with Kleinn 2121 Pressure Switch

Ensure precise and automatic operation of your air compressor system with the Kleinn 2121 Sealed Tank Mount Pressure Switch. This crucial component is designed to maintain optimal air pressure within your tank, activating your compressor when pressure drops to 90 PSI and shutting it off once it reaches 120 PSI. This consistent regulation protects your compressor and ensures a ready supply of air for your horns or suspension.

Durable & Efficient Performance

Featuring a robust 1/4-inch Male NPT connection, this sealed pressure switch offers easy and secure tank mounting. While providing reliable performance with a standard 5% tolerance, the use of a relay is highly recommended to protect the switch from high current loads, as it supports a maximum of 20 amps. Invest in Kleinn quality for a dependable air system that operates efficiently and automatically.

  • Activation pressure: 90 PSI (On)
  • Deactivation pressure: 120 PSI (Off)
  • Connection type: 1/4" Male NPT
  • Max load: 20 amps (relay recommended)
  • Standard 5% pressure tolerance

For all your air compressor needs, trust GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Kleinn Air Horns

Kleinn Air Horns engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Kleinn Air Horns lineup with fast shipping and expert fitment support — order with confidence.

Reliable Air Compressor Control with Kleinn 2121 Pressure Switch

Ensure precise and automatic operation of your air compressor system with the Kleinn 2121 Sealed Tank Mount Pressure Switch. This crucial component is designed to maintain optimal air pressure within your tank, activating your compressor when pressure drops to 90 PSI and shutting it off once it reaches 120 PSI. This consistent regulation protects your compressor and ensures a ready supply of air for your horns or suspension.

Durable & Efficient Performance

Featuring a robust 1/4-inch Male NPT connection, this sealed pressure switch offers easy and secure tank mounting. While providing reliable performance with a standard 5% tolerance, the use of a relay is highly recommended to protect the switch from high current loads, as it supports a maximum of 20 amps. Invest in Kleinn quality for a dependable air system that operates efficiently and automatically.

  • Activation pressure: 90 PSI (On)
  • Deactivation pressure: 120 PSI (Off)
  • Connection type: 1/4" Male NPT
  • Max load: 20 amps (relay recommended)
  • Standard 5% pressure tolerance

For all your air compressor needs, trust GGCRACING.

Product Details

Product Description

About Kleinn Air Horns

Kleinn Air Horns engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Kleinn Air Horns lineup with fast shipping and expert fitment support — order with confidence.

Reliable Air Compressor Control with Kleinn 2121 Pressure Switch

Ensure precise and automatic operation of your air compressor system with the Kleinn 2121 Sealed Tank Mount Pressure Switch. This crucial component is designed to maintain optimal air pressure within your tank, activating your compressor when pressure drops to 90 PSI and shutting it off once it reaches 120 PSI. This consistent regulation protects your compressor and ensures a ready supply of air for your horns or suspension.

Durable & Efficient Performance

Featuring a robust 1/4-inch Male NPT connection, this sealed pressure switch offers easy and secure tank mounting. While providing reliable performance with a standard 5% tolerance, the use of a relay is highly recommended to protect the switch from high current loads, as it supports a maximum of 20 amps. Invest in Kleinn quality for a dependable air system that operates efficiently and automatically.

  • Activation pressure: 90 PSI (On)
  • Deactivation pressure: 120 PSI (Off)
  • Connection type: 1/4" Male NPT
  • Max load: 20 amps (relay recommended)
  • Standard 5% pressure tolerance

For all your air compressor needs, trust GGCRACING.

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