Horns

Horns: from a stock-replacement beep to a full air setup

A horn is a simple safety device that turns 12 volts (or 24 in some heavy-vehicle setups) into sound so other drivers know you're there. When you fit new horns, you're usually doing one of two things: replacing a weak or dead factory unit, or stepping up to a louder, deeper tone that carries better in traffic. An electric horn is a straight swap - power, ground, mount, done. An air horn is a bigger job: you're adding a compressor, an air tank, and lines, so it needs room to mount and a clean power feed.

What ThreePiece stocks

This category currently shows 15 products from three brands: Hella (6 in the sample), Bikers Choice (5), and Kleinn Air Horns (4). Prices run from $43 to $518, which is the live range for what's in stock now, not a fixed promise. At the affordable end you get compact electric units like the Bikers Choice Black Slotted 12V horn and the chrome slotted custom electric horn. In the middle sit dual-tone electric sets like the Hella Supertone 12V 300/500Hz kit and the Hella Supertone 24V 84W set. At the top are complete air systems such as the Kleinn dual horn kit with 120 PSI compressor and 0.5-gallon tank and the Kleinn black triple horn in XCR2.0 coated spun steel.

How to choose

The decision comes down to how much sound you want and how much install you're willing to do:

  • Simple electric replacement: the Bikers Choice universal 12V units are the cheapest, smallest, and easiest to wire in - good when you just need a working horn again.
  • Louder dual-tone, still electric: the Hella Supertone kits give you a two-note tone without a compressor or tank. Note the voltage - the Supertone set here is 24V, suited to vehicles running that system, while the Supertone kit is 12V.
  • Maximum sound, full build: the Kleinn air horns include the compressor and tank, so they need mounting space and a proper power feed. That's why they sit at the top of the price range.

None of these products carry stated vehicle fitment data in this category, so treat the electric and air units as universal-style parts and confirm mounting and voltage for your rig before you order.

What else you may need

An air setup often shares 12V wiring runs with your lighting, so plan the harness once. If you're building out the front and rear of a truck, browse headlights, tail lights, turn signals and LED light bars in the same trip, or add mud flaps and mirrors while you're in the Exterior section.

Fitment and ordering

Every order ships free, and Affirm and Katapult financing is available on the bigger air kits. If you're unsure a horn or compressor will fit your available space or voltage, call our fitment help at 813-535-5801 or reach us through the contact page before you buy.

Horns: from a stock-replacement beep to a full air setup

A horn is a simple safety device that turns 12 volts (or 24 in some heavy-vehicle setups) into sound so other drivers know you're there. When you fit new horns, you're usually doing one of two things: replacing a weak or dead factory unit, or stepping up to a louder, deeper tone that carries better in traffic. An electric horn is a straight swap - power, ground, mount, done. An air horn is a bigger job: you're adding a compressor, an air tank, and lines, so it needs room to mount and a clean power feed.

What ThreePiece stocks

This category currently shows 15 products from three brands: Hella (6 in the sample), Bikers Choice (5), and Kleinn Air Horns (4). Prices run from $43 to $518, which is the live range for what's in stock now, not a fixed promise. At the affordable end you get compact electric units like the Bikers Choice Black Slotted 12V horn and the chrome slotted custom electric horn. In the middle sit dual-tone electric sets like the Hella Supertone 12V 300/500Hz kit and the Hella Supertone 24V 84W set. At the top are complete air systems such as the Kleinn dual horn kit with 120 PSI compressor and 0.5-gallon tank and the Kleinn black triple horn in XCR2.0 coated spun steel.

How to choose

The decision comes down to how much sound you want and how much install you're willing to do:

  • Simple electric replacement: the Bikers Choice universal 12V units are the cheapest, smallest, and easiest to wire in - good when you just need a working horn again.
  • Louder dual-tone, still electric: the Hella Supertone kits give you a two-note tone without a compressor or tank. Note the voltage - the Supertone set here is 24V, suited to vehicles running that system, while the Supertone kit is 12V.
  • Maximum sound, full build: the Kleinn air horns include the compressor and tank, so they need mounting space and a proper power feed. That's why they sit at the top of the price range.

None of these products carry stated vehicle fitment data in this category, so treat the electric and air units as universal-style parts and confirm mounting and voltage for your rig before you order.

What else you may need

An air setup often shares 12V wiring runs with your lighting, so plan the harness once. If you're building out the front and rear of a truck, browse headlights, tail lights, turn signals and LED light bars in the same trip, or add mud flaps and mirrors while you're in the Exterior section.

Fitment and ordering

Every order ships free, and Affirm and Katapult financing is available on the bigger air kits. If you're unsure a horn or compressor will fit your available space or voltage, call our fitment help at 813-535-5801 or reach us through the contact page before you buy.