---
product_id: 77565157
title: "Wolo (419) Bad Boy Air Horn - 12 Volt , Black"
brand: "wolo"
price: "$208.54"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/77565157-wolo-419-bad-boy-air-horn-12-volt-black
store_origin: US
region: United States of America
---

# 12V power compatibility 123.5 dB loudness One-bolt easy mount Wolo (419) Bad Boy Air Horn - 12 Volt , Black

**Brand:** wolo
**Price:** $208.54
**Availability:** ✅ In Stock

## Summary

> 🚨 Make your presence impossible to ignore with the Wolo Bad Boy Air Horn!

## Quick Answers

- **What is this?** Wolo (419) Bad Boy Air Horn - 12 Volt , Black by wolo
- **How much does it cost?** $208.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/77565157-wolo-419-bad-boy-air-horn-12-volt-black)

## Best For

- wolo enthusiasts

## Why This Product

- Trusted wolo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Power:** Seamless 12V installation by swapping factory horn wires—no extra hoses needed.
- • **Compact Yet Mighty:** Space-saving design fits any vehicle without compromising airflow or style.
- • **Effortless Mounting:** Includes all hardware for a secure one-bolt installation in minutes—no mechanic required.
- • **Built to Last, Built for Impact:** Heavy-duty, maintenance-free compressor ensures years of reliable, thunderous sound.
- • **Double the Decibels, Double the Presence:** 123.5 dB dual-tone blast that commands attention instantly.

## Overview

The Wolo (419) Bad Boy Air Horn delivers a powerful 123.5 dB dual-tone sound, twice as loud as standard factory horns. Designed with a patented one-piece compressor requiring no hoses, it installs easily by transferring factory horn wires and mounts securely with a single bolt. Compact and compatible with all 12-volt vehicles, this black air horn features a heavy-duty, maintenance-free compressor built for long-lasting performance, making it the ultimate upgrade for drivers who demand to be heard.

## Description

The Wolo 419 Bad Boy Is The Latest In Air Horn Technology, A Patented One-Piece Design That Requires No Hoses. Installs Easily In Minutes By Simply Transferring The Factory Horn Wires To The Compressor. Mounts With One Bolt Included In Kit. Produces A Powerful Dual Tone Air Horn Sound That Is Two Times 2X Louder Than A Factory Horn. The Bad Boy, Is Compact In Size To Fit Any 12-Volt Vehicle And Will Provide The Vehicle Owner A Powerful Air Horn Sound. They Will Hear You Before They See You. Built With A Heavy-Duty Maintenance Free Compressor That Will Provide Years Of Dependable Service. Instructions In English / Spanish.

Review: Nice and loud - I bought 2 of these horns. One for a scooter and one for a Honda Goldwing. For the scooter, because of space constrictions I had to separate the air pump from the horn and mount each piece in a separate location and reconnect with vacuum line after adding a hose barb to each piece. Goldwing install mounted great. I mounted it behind and above front wheel fender in front of the radiator in the blank space between radiator halves as far up as I could. I have it turned vertical with horn opening on the bottom facing forward and it blocks very minimal air flow. I had to epoxy 2 strips of stiff closed cell foam to the horn, 1 above and 1 below the round chrome looking piece so that the back was flush and kept pressure off of round piece.Then I used heavy duty zip ties around frame piece in between radiator halves. 600 miles on Goldwing so far and all is great. And it sure is a BIG sound coming out of a little scooter. Makes me laugh. For both installs I left original horns hooked up as well so you get 2 different tones which makes it that much more noticeable. The horn itself works great. i purchased additional relays after reading about early failures with included relays. Just as a test for the Goldwing horn, I connected it to original horn wiring and then 2nd test I wired correctly and connected it straight to battery with the relay. It is quite a bit louder coming straight from battery with relay. And this is also the correct way to install it as the stock horn circuit is not designed to pull the power required for the pump. Hence, the quieter horn. I have read that some just use stock wiring and all is good but the relay install gives you more "bang for the buck".
Review: Nice Sound-Easy Installation - I'm glad that I replaced the OEM horn in my 2000 Miata with the Wolo Model 419 Bad Boy Air Horn. The OEM horn sounded like a bicycle horn & wouldn't scare a child. The Bad Boy has a louder two tone sound, like much larger cars and you will not be ignored anymore. The only difficult task was removing the existing OEM horn & bracket. I had to remove the Miata grille (screen) and one passenger-side headlight bolt to gain access to the OEM horn, mounting bracket, electrical wire & wire clamp. I used the previously removed OEM horn bracket, after drilling a 1/4" dia. hole (near the bend in the bracket)for the Wolo Bad Boy horn kit included mounting bolt. See the customer images for approximate hole location & installation photos. I mounted the OEM horn bracket with the existing bolt on the radiator mount. The Bad Boy horn tucks nicely tucks in this area and is easily accessible. See customer images for installation location. Wiring-I used the existing OEM wire & clamp. I cut off the old wire connector & then crimped on a new 3/8" insulated female spade terminal. This wire lead connects to the plus(+) Wolo male spade. There a existing hole in the car frame where you can insert the existing wire clamp to anchor this plus (+) wire lead. I purchased some 16AWG wire for a chassis ground (you will only need about 6" of 16AWG wire). I crimped a 3/8" female spade on one end (which connects to the minus (-) Wolo male spade). Then I crimped a 1/4" vinyl insulated ring terminal to the other end of the ground wire. Note: Attach both plus & minus wire leads to Bad Boy horn before securing the horn to the OEM bracket with the bolt included in the kit. I cut about 3/8" off the Wolo mounting bolt, so that the threads would not protrude so close to the radiator (this is totally optional). Next tighten the Wolo mounting fastener nut to secure the horn to the OEM horn bracket. I used the original bolt (that secured the OEM horn bracket) to secure the ground ring terminal to the car frame. There is an existing threaded hole in the car frame where you can terminate the ground wire [from the minus (-) lead from the Wolo horn]. See customer images for installation location. To insure that the Miata electrical system would handle the increased current, I replaced the existing (15 Amp) horn fuse with a 20 Amp fuse. The fuse box is located in the passengers' side of the engine compartment near the wiper fluid container. Note: The horn circuit is the same as the stop light circuit. It is indicated on the top of the fuse box as a "Stop 15A". See customer images for the fuse box & notations. Hopefully this will help other Miata owners to install the Wolo Model 419 Bad Boy Air Horn in your vehicle. I am glad that I took the time to do it, because I could not stand to hear that annoying little OEM horn any more. The Wolo horn is relative inexpensive and well worth the money when purchased at desertcart.com. It is normally $39.99 at Harbor Freight. New Parts Required Summary: (1) Wolo Model 419 Bad Boy Horn Kit, (1) 20Amp Fuse, (1) Approx. 6" long 16AWG wire, (2) 3/8" vinyl insulated female spade terminals and (1) 1/4" vinyl insulated ring terminal. Good Luck, J. Anderson

## Features

- Auto & Truck Maintenance
- Patented One-Piece Design That Requires No Hoses
- Installs Easily In Minutes By Simply Transferring The Factory Horn Wires To The Compressor
- Mounts With One Bolt Included In Kit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000F5DQWY |
| Best Sellers Rank | #801,218 in Automotive ( See Top 100 in Automotive ) #475 in Air Horns #16,869 in Electrical |
| Brand Name | Wolo |
| Color | Black |
| Compatible with Vehicle Type | Auto |
| Customer Reviews | 4.2 out of 5 stars 2,542 Reviews |
| Fit Type | Vehicle Specific Fit |
| Global Trade Identification Number | 00080217004190 |
| Included Components | Manual |
| Item Dimensions | 7.25 x 3.5 x 10.75 inches |
| Item Height | 10.75 inches |
| Item Type Name | Air Horn |
| Item Weight | 1.6 Pounds |
| Manufacturer | WOLO |
| Manufacturer Part Number | 419 |
| Manufacturer Warranty Description | 1 Year Limited |
| Material Type | HAWA |
| Noise Level | 123.5 Decibels |
| Style Name | Classic |
| UPC | 080217004190 |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |

## Product Details

- **Brand:** Wolo
- **Color:** Black
- **Item dimensions L x W x H:** 7.25 x 3.5 x 10.75 inches
- **Style:** Classic
- **Noise Level:** 123.5 Decibels

## Images

![Wolo (419) Bad Boy Air Horn - 12 Volt , Black - Image 1](https://m.media-amazon.com/images/I/71H5XbblN7S.jpg)

## Questions & Answers

**Q: Is it possible to use this with an electric wheelchair?  The chair does have 12-volt battery power.**
A: I would imagine so, but you would need to get a horn button and wire with the relay. Anyone familiar with auto electric shouldn't have a problem. Loud enough to bounce you out of the chair. good luck

**Q: Do I need to purchase other parts with this horn kit?**
A: Yes, you will need to purchase another horn from a different manufacture because they dont work and you will have wasted your time installing a broken horn right out of the box.

**Q: What does it sound like, a big rig, a monster beep, or something else?**
A: Not a big rig....but....triple the sound of loud auto and It Does get their attention.

**Q: Can this replace a to tone horn system? How?**
A: It has a two tone OEM sound similar to a Ford horn.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice and loud
*by D***H on June 23, 2013*

I bought 2 of these horns. One for a scooter and one for a Honda Goldwing. For the scooter, because of space constrictions I had to separate the air pump from the horn and mount each piece in a separate location and reconnect with vacuum line after adding a hose barb to each piece. Goldwing install mounted great. I mounted it behind and above front wheel fender in front of the radiator in the blank space between radiator halves as far up as I could. I have it turned vertical with horn opening on the bottom facing forward and it blocks very minimal air flow. I had to epoxy 2 strips of stiff closed cell foam to the horn, 1 above and 1 below the round chrome looking piece so that the back was flush and kept pressure off of round piece.Then I used heavy duty zip ties around frame piece in between radiator halves. 600 miles on Goldwing so far and all is great. And it sure is a BIG sound coming out of a little scooter. Makes me laugh. For both installs I left original horns hooked up as well so you get 2 different tones which makes it that much more noticeable. The horn itself works great. i purchased additional relays after reading about early failures with included relays. Just as a test for the Goldwing horn, I connected it to original horn wiring and then 2nd test I wired correctly and connected it straight to battery with the relay. It is quite a bit louder coming straight from battery with relay. And this is also the correct way to install it as the stock horn circuit is not designed to pull the power required for the pump. Hence, the quieter horn. I have read that some just use stock wiring and all is good but the relay install gives you more "bang for the buck".

### ⭐⭐⭐⭐⭐ Nice Sound-Easy Installation
*by J***N on July 2, 2011*

I'm glad that I replaced the OEM horn in my 2000 Miata with the Wolo Model 419 Bad Boy Air Horn. The OEM horn sounded like a bicycle horn & wouldn't scare a child. The Bad Boy has a louder two tone sound, like much larger cars and you will not be ignored anymore. The only difficult task was removing the existing OEM horn & bracket. I had to remove the Miata grille (screen) and one passenger-side headlight bolt to gain access to the OEM horn, mounting bracket, electrical wire & wire clamp. I used the previously removed OEM horn bracket, after drilling a 1/4" dia. hole (near the bend in the bracket)for the Wolo Bad Boy horn kit included mounting bolt. See the customer images for approximate hole location & installation photos. I mounted the OEM horn bracket with the existing bolt on the radiator mount. The Bad Boy horn tucks nicely tucks in this area and is easily accessible. See customer images for installation location. Wiring-I used the existing OEM wire & clamp. I cut off the old wire connector & then crimped on a new 3/8" insulated female spade terminal. This wire lead connects to the plus(+) Wolo male spade. There a existing hole in the car frame where you can insert the existing wire clamp to anchor this plus (+) wire lead. I purchased some 16AWG wire for a chassis ground (you will only need about 6" of 16AWG wire). I crimped a 3/8" female spade on one end (which connects to the minus (-) Wolo male spade). Then I crimped a 1/4" vinyl insulated ring terminal to the other end of the ground wire. Note: Attach both plus & minus wire leads to Bad Boy horn before securing the horn to the OEM bracket with the bolt included in the kit. I cut about 3/8" off the Wolo mounting bolt, so that the threads would not protrude so close to the radiator (this is totally optional). Next tighten the Wolo mounting fastener nut to secure the horn to the OEM horn bracket. I used the original bolt (that secured the OEM horn bracket) to secure the ground ring terminal to the car frame. There is an existing threaded hole in the car frame where you can terminate the ground wire [from the minus (-) lead from the Wolo horn]. See customer images for installation location. To insure that the Miata electrical system would handle the increased current, I replaced the existing (15 Amp) horn fuse with a 20 Amp fuse. The fuse box is located in the passengers' side of the engine compartment near the wiper fluid container. Note: The horn circuit is the same as the stop light circuit. It is indicated on the top of the fuse box as a "Stop 15A". See customer images for the fuse box & notations. Hopefully this will help other Miata owners to install the Wolo Model 419 Bad Boy Air Horn in your vehicle. I am glad that I took the time to do it, because I could not stand to hear that annoying little OEM horn any more. The Wolo horn is relative inexpensive and well worth the money when purchased at Amazon.com. It is normally $39.99 at Harbor Freight. New Parts Required Summary: (1) Wolo Model 419 Bad Boy Horn Kit, (1) 20Amp Fuse, (1) Approx. 6" long 16AWG wire, (2) 3/8" vinyl insulated female spade terminals and (1) 1/4" vinyl insulated ring terminal. Good Luck, J. Anderson

### ⭐⭐⭐⭐ Great horn, but disappointing customer service from Wolo
*by E***C on April 15, 2010*

I bought this horn to use on my dirt bike (motard style). Wolo advertizes that their horn will fit any bike, but it was very difficult to find any place to mount it on a dirt bike, as the horn is quite big. I emailed Wolo and asked for help about where to mount it, and they weren't very helpful - just said that my installer would have to find a dry place to mount it. I finally decided to mount it over the headlights. I then emailed Wolo asking for advice buying or making a rain shield. They didn't answer any of my questions about what materials to use in a rain shield, but mentioned a company called Metal Arts, but when I did an internet search, nothing came up. I emailed Wolo again, asking for a url or email address for the company and they gave me a phone number for the company. Since I live in Thailand, I wanted to contact the company by email, so I emailed Wolo, again asking for that information, but they never answered my final email. I finally designed a bracket and rain shield my self (the bracket from stainless steel, and the shield is an old helmet face shield). The horn is excellent - very loud, much louder than even the horns used on cars here in Thailand, so it really gets other drivers' attention on the highway. I had a switch installed so that I can switch back and forth between the Wolo horn and the original horn, so that I can use the quiter horn in town and not cause someone to have a heart attack! The relay went bad after a couple of months (the mechanic who replaced it says it was a cheap Taiwanese relay.) I've been using the horn for 9 months now, with no operation problems from the horn itself.

## Frequently Bought Together

- Wolo (419) Bad Boy Air Horn - 12 Volt , Black
- Wolo (HWK-1) Air Horn Wiring Kit with Horn Button Switch
- Wolo (619) Big Bad Max Air Horn - 12 Volt, Black

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/77565157-wolo-419-bad-boy-air-horn-12-volt-black](https://www.desertcart.us/products/77565157-wolo-419-bad-boy-air-horn-12-volt-black)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-07*