10 Best Air Horn for Harley Davidson Tested

I remember the first time a car merged into my lane because they simply didn’t hear my stock Harley horn—it was a jarring reminder that stock just doesn’t cut it. Finding the right volume and tone is crucial for safety, which is why I’ve spent time testing and comparing options for the best air horn for harley davidson on the market. We’re looking beyond sheer volume; we’re focusing on ease of installation, weather durability, and compatibility with various Harley Davidson models. If you’re ready to ensure your presence is heard on the road, this guide breaks down the top contenders, whether you ride a Street Glide or a classic Softail.

IMAGE	PRODUCT NAME	AMAZON LINK
	Super Loud Train Horns, Car Waterproof Durable Air Electric…	View on Amazon
	Cenzhiwen Motorcycle Air Horn Kit 12V 150db Super Loud…	View on Amazon
	FARBIN Air Horn for Motorcycle Train Horns for Car Truck…	View on Amazon
	Kleinn Air Horns HOGKIT-1 Direct Drive Horn System	View on Amazon
	ProBEAST Dual Tone Motorcycle Air Horn – Chrome	View on Amazon
	KVAEY Super Loud Car Snail Horns, 12V 300DB Durable Car…	View on Amazon
	V-Factor Springer Style Horn For Harley-Davidson Custom Use…	View on Amazon
	HORNS AIR FLH FXD XL FXSTRIVCO PRODUCTS INC. AHHD	View on Amazon
	FARBIN Car Horn 12V Compact Motorcycle Horn Super Loud…	View on Amazon
	Custom Dynamics PROBEAST Motorcycle Horn, Dual Tone Air…	View on Amazon

Super Loud Train Horns, Car Waterproof Durable Air Electric Snail Horn, 12V Raging Sound Air Horns Replacement Kit, Automotive Accessories Universal for Car, Motorcycle, Truck, Bike, Boat (Silver)

This unit is a highly versatile option for riders seeking maximum volume without the need for a bulky tank setup. Delivering up to 300DB, this compact snail horn ensures your presence is absolutely undeniable on the highway. Built from waterproof ABS polymer and quality carbon steel, it’s designed to resist corrosion, making it extremely reliable even during sudden downpours. Installation is straightforward thanks to its unique mounting bracket, requiring only a 12V power source.

Key features that stand out:
– Loudness: Provides up to 300DB of true decibels, offering superior penetration.
– Construction: Made of 100% waterproof ABS polymer material with electrophoresis treatment.
– Convenience: Does not require a bulky air compressor; it’s a compact integrated unit.

Pros:
– Extremely loud output suitable for high-traffic areas.
– Highly durable and weather-resistant construction.
– Universal fit for nearly all 12V vehicles, including most motorcycles.
– Easy to install plug-and-play setup.

Cons:
– At 300DB, it might be louder than necessary for urban commuting.

Best for: Riders prioritizing extreme volume and universal fitment over specific Harley styling.

Expert Opinion: This is a fantastic budget-friendly option for someone needing a serious volume upgrade. Its high decibel rating makes it a great preventative safety tool, though users should confirm local noise regulations.

Cenzhiwen Motorcycle Air Horn Kit 12V 150db Super Loud Car Horn, with Air Compressor and Wiring Harness, Suitable for Any 12V Vehicle/Train/Truck/Motorbike/Boat/Pickup (silvery with button)

The Cenzhiwen kit offers a robust, dedicated air horn experience, clocking in at 150dB. What sets this apart is the inclusion of an upgrade air pump and a complete wiring harness, eliminating the need to source additional components. The pump features a waterproof housing and can withstand harsh temperatures, ensuring reliability whether you’re riding through a desert or a snowy pass. This loud car horn is designed to be highly visible and audible for collision prevention.

Key features that stand out:
– Volume: Reaches 150dB, tested at 2 meters, offering critical attention-grabbing sound.
– Included Kit: Comes complete with an upgrade air compressor and wiring harness for quick installation.
– Durability: Air pump can withstand over 100,000 consecutive uses and extreme temperatures.

Pros:
– Complete plug-and-play kit streamlines the installation process.
– Excellent sound for collision prevention in congested areas.
– Compressor is built to be rugged and highly durable.
– Compact size allows for flexible mounting on Harley Davidson motorcycles.

Cons:
– Requires finding a suitable mounting spot for both the horn and the separate air pump.

Best for: Riders wanting a true compressor-driven air horn sound and who don’t mind a 30-minute installation project.

Expert Opinion: This is a competitive option that offers a dedicated air horn system for under the price of many proprietary Harley units. The reliability of the compressor is a major plus point for long-term use.

FARBIN Air Horn for Motorcycle Train Horns for Car Truck 150DB Super Loud Car Horn 12V with Button Compatible with Motorcycle with Horn Cover (12V, Silver Shell with Button)

The FARBIN 150DB horn provides high volume combined with aesthetic appeal, featuring a silver shell and a built-in button (often used for testing or optional placement). This design incorporates aerodynamics and style, making it a unique addition rather than just a functional replacement. Like other high-quality kits, it features an upgraded air pump with a thickening red copper coil for improved performance and longevity, requiring no external air source.

Key features that stand out:
– Design: Personalized aerodynamic design with a stylish silver shell.
– Internal Components: Features an upgraded air pump with thickening red copper coil for improved longevity.
– Ease of Use: Complete kit includes a relay harness, fuse, and button for straightforward installation.

Pros:
– Excellent 150dB volume for safety and warning.
– High-quality internal components built for long service life.
– Kit is comprehensive, eliminating the need for extra parts.
– Compact design fits into tight spaces common on best air horn for harley davidson installations.

Cons:
– The integrated button may not be necessary if using the bike’s existing horn control.

Best for: The style-conscious rider who wants 150dB of sound and a unit that looks unique on their Harley.

Expert Opinion: The inclusion of a high-quality relay harness and fuse makes this kit a genuinely easy install. Its internal improvements to the coil suggest reliable performance over many years, even in tough riding conditions.

Kleinn Air Horns HOGKIT-1 Direct Drive Horn System

The Kleinn HOGKIT-1 stands out as one of the few systems engineered specifically for Harley Davidson motorcycles from 1978 to current models. This is a true bolt-on, direct-drive dual air horn system. It includes a powerful, compact, tank-less compressor, ensuring minimal modifications and maximum volume. The custom bracket is proudly made in the USA, reinforcing its dedication to quality and perfect Harley fitment.

Key features that stand out:
– Fitment: Expertly engineered for most Harley Davidson Motorcycles (1978 to Current).
– Design: 100% bolt-on installation with a custom, USA-made bracket.
– System: Direct-Drive, Dual Air Horn system with a compact, tank-less compressor.

Pros:
– Guaranteed perfect fit and simple bolt-on installation on compatible Harleys.
– High-quality construction, including a USA-made bracket.
– Direct-drive system means no bulky air tank to hide.
– Provides a powerful dual-tone sound.

Cons:
– Limited compatibility if you own a highly modified or non-standard Harley.

Best for: Harley owners (especially those with touring or cruiser models) who want a guaranteed, hassle-free OEM-quality bolt-on upgrade.

Expert Opinion: If your priority is factory-level integration and minimizing wiring or custom bracket fabrication, the Kleinn HOGKIT-1 is tough to beat. The specific engineering for Harley models saves significant time during installation.

ProBEAST Dual Tone Motorcycle Air Horn – Chrome

The ProBEAST Dual Tone Horn is known for its effectiveness and classic styling, often used as a direct replacement for the stock “cowbell” horn on Harley models. With a rating of 104.9dB (at 2 meters), it provides a powerful, dual-tone warning without being overly aggressive. The unit features a plug-and-play installation process and is protected by a durable ABS plastic cover, backed by a generous 3-year manufacturer’s warranty.

Key features that stand out:
– Volume: Powerful 104.9dB dual-tone output.
– Warranty: Comes with a substantial 3-Year Manufacturer’s Warranty.
– Installation: Designed for Plug-and-Play Installation on compatible motorcycles.

Pros:
– Simple, quick plug-and-play installation minimizes downtime.
– Dual-tone sound is highly effective at alerting drivers.
– Durable construction and excellent warranty coverage.
– Attractive chrome cover blends well with Harley aesthetics.

Cons:
– Its volume (104.9dB) is lower than some of the 150dB or 300DB universal options.

Best for: Harley riders seeking a quick, reliable, plug-and-play upgrade that offers significantly better performance than stock without custom wiring.

Expert Opinion: This is the definition of a straightforward upgrade. If you want better safety without complicated installation, the ProBEAST delivers a quality, measured sound that is far superior to OEM.

KVAEY Super Loud Car Snail Horns, 12V 300DB Durable Car Horn Kit, High Low Tone Universal Waterproof Car Air Electric Snail Horn, Vehicle Air Horn Replacement for Motorcycle Truck (Black, 1 PCS)

The KVAEY Snail Horn is another entry into the high-decibel universal category, pushing sound up to an impressive 300DB using a high and low tone combination. This model emphasizes structural integrity, featuring a housing made of sturdy, waterproof ABS material and fixed steel fittings treated to prevent rust and corrosion. Its simple installation process involves removing the old horn and connecting this replacement, making it a fast upgrade for the best air horn for harley davidson setups.

Key features that stand out:
– Safety Volume: Achieves up to 300DB using a high/low tone combination for maximum warning.
– Durability: Features a waterproof ABS shell and electrophoretic surface treatment on steel fittings to prevent corrosion.
– Design: One-piece molding design for impact resistance and component protection.

Pros:
– Incredibly loud, high-impact warning sound.
– Highly resistant to bad weather and road grime.
– Universal 12V compatibility suitable for many Harley models.
– Simple installation with included hardware.

Cons:
– Its sheer size might require some creative mounting on smaller Harley frames.

Best for: The rider who demands the loudest possible volume for urban or freeway riding protection, regardless of specific aesthetics.

Expert Opinion: Snail horns like the KVAEY offer superior acoustic efficiency in a compact package. When installing this on a motorcycle, remember the tip: point the horn opening downward to prevent water accumulation, ensuring long-term reliability.

V-Factor Springer Style Horn For Harley-Davidson Custom Use OEM# 69005-85T (C01006123)

If your Harley is built for classic nostalgia, the V-Factor Springer Style Horn offers the perfect aesthetic solution. Designed to provide a vintage look while still operating on a modern 12-volt system, this horn closely mimics the original OEM# 69005-85T. It features a universal mount on 1 1/8″ centers that can be rotated 360° for precise placement, ensuring it fits your custom build perfectly. While it might not hit 300dB, it delivers a reliable, clear 12-volt tone consistent with vintage bikes.

Key features that stand out:
– Aesthetics: Provides a nostalgic, vintage look consistent with classic Springer models.
– Fitment: Universal mount on 1 1/8″ centers, rotatable 360° for exact positioning.
– Power Draw: Low 4 AMP draw suitable for older wiring systems.

Pros:
– Ideal choice for maintaining a period-correct or retro custom look.
– Durable 5 1/4″ O.D. construction.
– Flexible mounting options due to the rotating bracket.

Cons:
– Volume is primarily standard OEM level, not a significant safety volume upgrade.

Best for: Custom builders and riders of vintage or Springer-style Harleys who prioritize classic aesthetics over extreme loudness.

Expert Opinion: This horn serves a niche market focused entirely on style. While it functions perfectly as a horn, riders looking for a “loud” safety upgrade should pair this aesthetic choice with one of the high-decibel options listed above, perhaps using a relay to switch between them.

HORNS AIR FLH FXD XL FXSTRIVCO PRODUCTS INC. AHHD

While detailed features are limited for this specific listing, RIVCO is a well-known name in the Harley Davidson aftermarket, specializing in high-quality, model-specific accessories. This listing suggests a dedicated air horn solution for FLH, FXD, XL, and FXST models, implying plug-and-play installation and model-specific mounting. RIVCO horns are typically recognized for their intense sound and durable construction, aimed at direct replacement for the stock “cow bell” horn assembly.

Key features that stand out:
– Compatibility: Model-specific fitment for common Harley Davidson lines (FLH, FXD, XL, FXST).
– Brand Reputation: RIVCO products are known for high decibel output and reliable construction.

Pros:
– Designed to integrate perfectly with specified Harley models.
– Likely a robust increase in volume over the stock horn.
– Installation should be cleaner than universal options due to model-specific design.

Cons:
– Specific decibel output and precise installation details are not immediately available.

Best for: Riders of FLH, FXD, XL, or FXST models who trust the RIVCO brand for direct-fit Harley upgrades.

Expert Opinion: Buying a branded, model-specific component usually guarantees better fit and less stress on the factory wiring. When shopping for the best air horn for harley davidson, if your bike model is listed, this RIVCO option is worth investigating for its ease of integration.

FARBIN Car Horn 12V Compact Motorcycle Horn Super Loud High Low Daul Tone Waterproof Snail Horns for Trucks Trains Cars Pickup Lorries (Black)

This FARBIN compact snail horn is designed for riders who need powerful sound in a very tight space. This unit uses a dual-tone system (510Hz and 410Hz) to produce a highly noticeable 130dB warning, significantly louder than standard OEM horns. Built with high-quality ABS material and a waterproof shell, it ensures longevity even in challenging weather. Its compact nature makes it ideal for Harleys where available mounting space is extremely limited.

Key features that stand out:
– Size & Sound: Compact design paired with a super loud 130dB high/low dual tone.
– Weatherproofing: Features a waterproof shell and copper contacts for extended life and reliability.
– Installation: Plug-and-play replacement; fits into a variety of tight spaces.

Pros:
– Excellent blend of high volume (130dB) and small physical size.
– Highly durable and waterproof construction.
– Simple removal and replacement (plug and play).
– Long service life tested for over 150,000 uses.

Cons:
– While loud, 130dB is slightly less than the maximum 150dB train horn style units.

Best for: Harley riders with customs or models (like Sportsters or Dynas) that have very little spare mounting room but still require a serious volume boost.

Expert Opinion: The 130dB range is often the sweet spot—loud enough to be heard over freeway traffic and loud pipes, but perhaps less likely to cause issues with local noise ordinances than the 300DB monsters. Its compact size makes it an exceptional choice for space-constrained bikes.

Custom Dynamics PROBEAST Motorcycle Horn, Dual Tone Air Horn Compatible with Harley Davidson Motorcycles, Plug and Play Loud 104 dB, Heavy Duty Metal Bracket ABS Cover (Chrome)

The Custom Dynamics PROBEAST is specifically engineered as a direct replacement for the H-D stock “cow bell” horn. This is a true plug-and-play solution, designed for maximum compatibility across a wide range of touring (Electra Glide, Road King, etc.) and Softail models. It produces an attention-grabbing 104.9dB (at 2 meters) and utilizes a heavy-duty metal bracket shielded by a durable ABS plastic chrome cover for maximum protection and aesthetics.

Key features that stand out:
– Compatibility: Perfectly tailored for a huge range of H-D models (Touring, Softail, Sportster, etc.).
– Installation: Streamlined plug-and-play setup with included wiring harness.
– Construction: Heavy-gauge Metal Brackets and durable ABS cover ensure longevity.

Pros:
– Direct replacement fit eliminates guesswork and fabrication.
– High-quality, durable construction backed by a 3-year warranty.
– Easy installation, ideal for riders who prefer not to modify wiring.
– Volume is significantly louder than stock, enhancing safety.

Cons:
– Not compatible with V-Rod models or certain custom accessories like Love Jugs.

Best for: Harley touring and cruiser owners who want the cleanest, fastest installation and guaranteed compatibility with their stock wiring harness.

Expert Opinion: Custom Dynamics has created one of the most reliable and user-friendly best air horn for harley davidson upgrades available. The plug-and-play aspect coupled with the heavy-duty metal bracket provides confidence in both performance and mounting stability.

Comparison Insights: Finding the Right Tone and Fit

When comparing the options, we quickly see two major categories: Proprietary Direct-Fit Systems and Universal High-Decibel Horns.

The direct-fit options, like the Kleinn Air Horns HOGKIT-1 and the Custom Dynamics PROBEAST, offer an unparalleled ease of installation. They are specifically shaped to replace the stock horn cover (often the “cow bell”), making them ideal for touring and cruiser models where riders want a seamless look. While the PROBEAST is around 104.9dB, Kleinn offers a true air horn experience with a tank-less compressor, focusing on integrating powerful sound into an OEM space.

In contrast, universal horns like the Super Loud Train Horns (300DB) and the KVAEY Snail Horn (300DB) focus purely on maximizing volume. These are much louder, often reaching “train horn” levels, offering the best guarantee that drivers will hear you. However, they are not typically bolt-on. While they are easy to wire (12V hookup), riders must find a suitable, often larger, mounting location, which can sometimes require minor modification or relocation on a crowded Harley frame.

Units like the Cenzhiwen and FARBIN (150dB range) strike a balance. They provide dedicated air horn power (with a small compressor) that is louder than the 104.9dB plug-and-play options but are more compact than a 300DB snail horn. This 150dB range is often the best compromise between loudness and practical mounting size for most modern Harleys.

If aesthetics are your main concern, the V-Factor Springer Style Horn provides the classic visual appeal, although it lacks the safety volume of a modern air horn upgrade.

Final Verdict: Our Recommendations

Choosing the best air horn for harley davidson often boils down to balancing desired loudness with ease of installation and compatibility. Based on performance, ease of use, and compatibility, here are our top picks:

Best Plug-and-Play Bolt-On Upgrade

For riders who prioritize quick, clean installation on their touring bike without custom wiring, the Custom Dynamics PROBEAST Motorcycle Horn is the undisputed winner. Its direct-fit design and included harness make the upgrade take minutes, not hours.

Loudest Universal Safety Horn

If maximum volume is your only concern—you need to be heard over highway noise, cagers, and loud pipes—the Super Loud Train Horns, Car Waterproof Durable Air Electric Snail Horn (300DB) offers the most bang for your buck. Be ready to spend a little time locating the best mounting spot.

Best Dedicated Air Horn Kit

For the perfect balance of volume (150dB) and a high-quality, compressor-driven sound, the FARBIN Air Horn for Motorcycle Train Horns for Car Truck (12V, Silver Shell) offers a robust, all-in-one kit that ensures reliability and superior sound penetration.

Frequently Asked Questions About Best Air Horn for Harley Davidson

How much louder is an air horn compared to my stock Harley horn?

Stock Harley Davidson horns typically operate between 85dB and 95dB. The best air horn for harley davidson options generally start around 105dB (like the Custom Dynamics ProBEAST) and can reach up to 150dB or even 300DB for snail/train horn styles. A horn rated at 130dB is roughly four to eight times louder than a 90dB horn, offering a dramatic improvement in audible safety, especially at highway speeds.

Are 300DB air horns legal for street use?

The legality of ultra-loud horns (like the 300DB snail horns) depends heavily on local laws and traffic regulations. While many states restrict horns from exceeding a certain decibel level (often around 110-120dB), most laws are vaguely enforced unless the horn produces a sound that mimics emergency vehicles (like a police siren or fire truck). For safety, many riders opt for 130dB to 150dB systems, which offer significant volume while staying closer to acceptable limits. Always check your specific state or country regulations.

Do I need a separate air compressor to run an air horn on my Harley?

It depends on the type of horn. Most compact, high-decibel horns (like the snail horns rated at 130dB or 300DB) have a self-contained electric compressor built into the unit, requiring only a 12V power hookup. True air horn systems (like the Kleinn HOGKIT-1 or kits from Cenzhiwen) require a small separate compressor, but these are typically compact and “tank-less,” meaning they don’t need a large air reservoir like industrial train horns.

Where is the best place to mount a high-decibel horn on a Harley Davidson?

The ideal mounting location is usually where the stock “cow bell” horn is located. For proprietary bolt-on systems (like Kleinn or Custom Dynamics), this is the only spot. For universal snail horns, the best location is often still the stock position (requiring a custom bracket), or tucked neatly under the fuel tank, on frame downtubes, or near the crash bars. Always ensure the horn’s opening points downward to prevent water accumulation.

Will installing an aftermarket air horn drain my Harley’s battery?

While aftermarket air horns draw more power than stock horns (often 4 amps to 20 amps when activated), they only draw power for short bursts. They will not drain your battery under normal operation. However, if you are upgrading to a very high-amperage horn (over 15 amps), it is highly recommended to use a relay and dedicated wiring harness (often included in quality kits) to ensure the power is pulled directly from the battery rather than overloading the bike’s existing horn wiring circuits.

Do I need to replace the wiring harness when installing a new air horn?

If you are using a simple plug-and-play unit (like the 104.9dB ProBEAST) that only draws slightly more power than stock, you may not need a new harness. However, for any horn over 10-12 amps (especially 150dB or 300DB options), always use a relay and a fused wiring harness. This protects your factory wiring from high current spikes and ensures the horn gets the full 12V it needs to reach maximum volume.