Kleinn Triple Black Train Horn Kit w/ 150 PSI Compressor & 5.0 Gal Waterproof Tank — Universal

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SKU: KLEHK9
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Sale price$1,179.99 Regular price$1,533.94
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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.

Watch in action

Unleash the Demon: Kleinn Triple Black Train Horn Kit (HK9)

Prepare for the ultimate auditory assault with the Kleinn Triple Black Train Horn Kit, model HK9, featuring the Demon Model 730s. This is Kleinn's biggest and loudest train horn system, designed for those who demand an unparalleled level of sound and presence. It boasts massive and detachable XCR 2.0 spun steel trumpets, measuring 18.25, 14.75, and 10.5 inches, offering extensive installation options to fit a variety of vehicles.

High-Performance Onboard Air for Demanding Use

The HK9 kit is equipped with a high-output 150 PSI, 100% duty cycle air compressor and a substantial 5-gallon waterproof air tank. This robust onboard air system is capable of powering not only your incredibly loud horns but also other essential accessories like air bags and small air tools. A comprehensive tire inflation kit with a convenient storage bag is also included, adding significant utility for any adventure.

  • Three massive XCR 2.0 spun steel trumpets (18.25", 14.75", 10.5")
  • Detachable trumpets for versatile installation
  • High-output 150 PSI, 100% duty cycle air compressor
  • Large 5-gallon waterproof air tank
  • Includes tire inflation kit with storage bag
  • Upgradeable with Ultra BlastMaster valve (P/N 6890) for extreme loudness

For the most aggressive and loudest train horn on the market, choose the Kleinn HK9, available now at 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.

Watch in action

Unleash the Demon: Kleinn Triple Black Train Horn Kit (HK9)

Prepare for the ultimate auditory assault with the Kleinn Triple Black Train Horn Kit, model HK9, featuring the Demon Model 730s. This is Kleinn's biggest and loudest train horn system, designed for those who demand an unparalleled level of sound and presence. It boasts massive and detachable XCR 2.0 spun steel trumpets, measuring 18.25, 14.75, and 10.5 inches, offering extensive installation options to fit a variety of vehicles.

High-Performance Onboard Air for Demanding Use

The HK9 kit is equipped with a high-output 150 PSI, 100% duty cycle air compressor and a substantial 5-gallon waterproof air tank. This robust onboard air system is capable of powering not only your incredibly loud horns but also other essential accessories like air bags and small air tools. A comprehensive tire inflation kit with a convenient storage bag is also included, adding significant utility for any adventure.

  • Three massive XCR 2.0 spun steel trumpets (18.25", 14.75", 10.5")
  • Detachable trumpets for versatile installation
  • High-output 150 PSI, 100% duty cycle air compressor
  • Large 5-gallon waterproof air tank
  • Includes tire inflation kit with storage bag
  • Upgradeable with Ultra BlastMaster valve (P/N 6890) for extreme loudness

For the most aggressive and loudest train horn on the market, choose the Kleinn HK9, available now at 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.

Watch in action

Unleash the Demon: Kleinn Triple Black Train Horn Kit (HK9)

Prepare for the ultimate auditory assault with the Kleinn Triple Black Train Horn Kit, model HK9, featuring the Demon Model 730s. This is Kleinn's biggest and loudest train horn system, designed for those who demand an unparalleled level of sound and presence. It boasts massive and detachable XCR 2.0 spun steel trumpets, measuring 18.25, 14.75, and 10.5 inches, offering extensive installation options to fit a variety of vehicles.

High-Performance Onboard Air for Demanding Use

The HK9 kit is equipped with a high-output 150 PSI, 100% duty cycle air compressor and a substantial 5-gallon waterproof air tank. This robust onboard air system is capable of powering not only your incredibly loud horns but also other essential accessories like air bags and small air tools. A comprehensive tire inflation kit with a convenient storage bag is also included, adding significant utility for any adventure.

  • Three massive XCR 2.0 spun steel trumpets (18.25", 14.75", 10.5")
  • Detachable trumpets for versatile installation
  • High-output 150 PSI, 100% duty cycle air compressor
  • Large 5-gallon waterproof air tank
  • Includes tire inflation kit with storage bag
  • Upgradeable with Ultra BlastMaster valve (P/N 6890) for extreme loudness

For the most aggressive and loudest train horn on the market, choose the Kleinn HK9, available now at GGCRACING.

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