DIY Milwaukee Train Horn
DIY Milwaukee Train Horn
DIY Milwaukee Train Horn
DIY Milwaukee Train Horn
DIY Milwaukee Train Horn
DIY Milwaukee Train Horn
Home ›DIY Kits for Train Horn Drills› Boss Series

DIY Train Horn Kit for Milwaukee® 18v Battery

Handcrafted in the USA using a genuine Portable Train Horns impact driver housing and custom-engineered components. Just insert your battery and it's ready to blast.

5.0 (3)
$160.00
Built in
The USA
dB Train Sound
1-Year Warranty
Pre-built Standalone Tool
No Installation · No Drill Needed
Color: Black
Trumpets · LOW PITCH
4×
Aluminum Alloy 2×14" + 2×12"
Customize Your Kit
INCLUDED
Remote Control (300ft) i
1 included free · extra remotes +$35 each
1
FREE
Long-Range Remote (2,000ft) i
Pro-grade range for events & large venues
1
+$59
6Ah Battery i
M18™ compatible · 500+ blasts per charge
1
+$30
Battery Charger i
M18™ compatible fast charger
1
+$30
Free Shipping, ships today
/
Free 90-day returns ⓘ
BossHorn by Horngun Corp., not affiliated with Milwaukee Electric Tool Corporation, states that this product is independently manufactured by Horngun Corp. and incorporates genuine Milwaukee® M18™ tool platform housing purchased through authorized dealers. Milwaukee® and M18™ are registered trademarks of Milwaukee Electric Tool Corporation, used here solely to identify the incorporated component. BossHorn / Horngun Corp. is wholly independent of Milwaukee Electric Tool Corporation.

How to make a Milwaukee® Train Horn

DIY Milwaukee® Train Horn Kit with Remote – Up to 140 dB

Transform your Milwaukee® impact drill into a powerful 140 dB train horn with this complete DIY kit. Designed for maximum sound output and easy assembly, this kit includes everything you need to build a cordless horn gun that delivers an earth-shaking blast. Perfect for events, safety alerts, and outdoor adventures, it’s the ultimate project for Milwaukee® tool enthusiasts.

Key Features

  • Universal Fit for Milwaukee® Drills – Works with most Milwaukee® impact drill models.
  • 140 dB Sound Power – Louder than standard vehicle horns, ensuring instant attention.
  • Quad Trumpets – Produces a bold, authentic train horn blast.
  • Remote-Control Convenience – Operate wirelessly with the included remote.
  • Premium Upgrade Available – Choose premium trumpets for an even stronger sound.

What’s Inside the Kit

  • Air horns assembly
  • Air compressor
  • Pre-built harness with remote signal receiver
  • Wireless Remote Control
  • Air hose
  • 2 mounting screws

Assembly Steps

  1. Unscrew the clamp shell and remove gears, motor, and harness.
  2. Fit the shell to match the air compressor.
  3. Install the new harness and connect the compressor to terminals.
  4. Attach the battery and test the compressor.
  5. Reassemble the shell and drill two mounting holes.
  6. Install the horn mount with bolts and connect the hose.
  7. Blast your brand-new Milwaukee® Train Horn!

Why Choose This DIY Kit?

This kit gives you the power to build your own cordless train horn using a Milwaukee® drill. It’s customizable, loud, and comes with everything you need to get started. No extra parts required—just your drill, a compatible battery, and this kit.

Get the DIY Milwaukee® Train Horn Kit today and enjoy a 140 dB blast built by your own hands.

Free U.S. ShippingAll orders ship free. Overnight available at checkout.
Same-Day DispatchOrders before 12:00 PM PST ship the same day with full tracking.
90-Day Money BackNo questions asked. Full refund + free return shipping.
InternationalShipping costs calculated at checkout. Duties may apply.
1-Year Full WarrantyComplete coverage on every Horn Gun we sell. No fine print.
15-Minute RepairsShip it or bring it in. Our technicians fix it on the spot.
Hassle-Free ProcessNo runaround. Contact us, ship it, get it back fixed.
Warranty covers the Horn Gun unit only. Batteries and chargers are not included.
No Maintenance RequiredBuilt tough. No servicing needed under normal use.
Avoid OverheatingGive short breaks during extended continuous use.
Remove Battery When StoredPrevents accidental activation and preserves charge.
Store in Cool, Dry PlaceSplash-resistant but not waterproof. Keep away from prolonged moisture.
Complete Your Kit
Most customers add these for the best experience
DIY Train Horn Kit for Milwaukee® 18v Battery
DIY Train Horn Kit for Milwaukee® 18v Battery
$160.00
$160.00
1
FREE
150DB
Max Volume
1 mile
Audible Range
160ft
Remote Range
4.9★
Customer Rating
Loudest Model
Best Value
2026 New Release
Up to
150dB

Real train sound. In one hand.

60 dB
Normal Conversation
100 dB
Car Horn
120 dB
Rock Concert
150 dB
BossHorn

"Your neighbors' car alarm just became the second loudest thing on the block"

// Exclusively at BossHorn

Patent Pending Technology

Volume Control

3 adjustable levels

Low110 dB Med130 dB Full150 dB
*Actual output may vary depending on battery charge level

Overheat Protection

Auto shut-off at 185°F

SafeWarmCut-off
Smart sensor → auto-cutoff → cooldown

Battery Protection

Prevents deep discharge

⛔
Auto-cutoff at 15% → preserves battery health
These features are patent pending and exclusive to the 2026 Boss Series. No competitor offers this technology at any price.
// Your Batteries. Your Horn.

Works With Any M18™ Battery

Your BossHorn runs on standard Milwaukee® M18™ batteries — the same ones powering millions of M18™ tools worldwide. No proprietary battery, no lock-in. Pick any capacity from 2.0Ah to 12.0Ah. The higher the Ah, the more blasts per charge. Already own M18™ tools? You're ready to go. New to the platform? M18™ batteries start at $30 and work across 200+ tools.

2.0Ah
Compact
4.0Ah
Standard
5.0Ah
Extended
6.0Ah
500+ blasts
8.0Ah
High Output
12.0Ah
All Day Power
All M18™ batteries
Aftermarket M18™-compatible
LED low battery indicator
Auto-cutoff at 15% — protects battery
Boss Series vs. Everyone Else

See the Difference

Same price range. Completely different league.

Feature Boss Series Others
Price $365 $355
Sound Output 150 dB 130 dB
Perceived Volume 4x louder 1x
Trumpets 4 (tuned) 2
Remote Range 300 ft (2,000 ft avail.) 160 ft
Remotes Included 1 0 (extra cost)
Volume Control ✓ 3 Levels ✗
Overheat Protection ✓ ✗
Battery Protection ✓ ✗
Built in USA ✓ Unknown
Warranty 1 Year ✗
Return Policy 90 Days 30 Days
// Full Technical Data

Technical Specifications

Sound

Max Output140DB
Volume LevelsSingle level
Sound TypeFreight Train Horn Deep Low Tone
Trumpets4× Aluminum Alloy, Powder Coated
Sound DelayZero — Instant
Audible RangeUp to 1 mile

Remote Control

Standard Range160ft
Long-Range (optional)2,000 ft
Remotes Included1 (160ft range)
Remote Battery23A 12V (included)
Frequency433 MHz Encrypted

Power System

Battery PlatformMilwaukee® M18™
CompatibleAll M18™: 2.0–12.0Ah
Aftermarket BatteriesYes — any M18™-compatible
Blasts (6Ah)500+ short / 200 sustained
Battery IndicatorLED on body
Deep DischargeActive protection

Construction

Base UnitBrand-New Milwaukee® M18™ Impact Driver Body Shell
HousingImpact-Resistant Polymer
Thermal ProtectionSmart Motor Overheating Protection
Water ResistanceSplash-Resistant
Weight4lb (w/o battery)
Dimensions14" x 6" x 12"
One Horn. Endless Possibilities.

Where to Use It

🏟

Sporting Events

Electrify the stadium. When your team scores, the entire parking lot will know.

🍖

Tailgating

The ultimate party starter. Remote-trigger from your lawn chair. Be the legend.

🚛

Trucks & Off-Road

Mount it or hand-hold. Louder than any factory or aftermarket horn on the road.

⛵

Boats & Marine

Fog signal, dock arrival, or just pure fun on the water. Audible for a mile.

🏕

Camping & Hiking

Bear and wildlife deterrent. Recommended by outdoor experts for backcountry safety.

🚨

Emergency Signaling

Audible up to 1 mile. Alert rescue teams when every second counts.

🏗

Construction Sites

Shift change signal, safety alerts, or just getting everyone's attention. Fast.

📱

Content Creation

Prank videos, reaction content. This is your viral moment on TikTok & YouTube.

// Everything You Need to Know

Got Questions?
We've got answers.

Can't find what you're looking for? Chat with us

The horn does NOT include a battery — it's available as an add-on right on this page. Just check the "2Ah Battery" option in the add-ons section above the Add to Cart button. We sell affordable aftermarket M18™-compatible batteries that work perfectly with your Milwaukee® horn. Already own Milwaukee® M18™ tools? Your existing batteries will work too.
Up to 140 dB with Single level. Uses 4× Aluminum Alloy, Powder Coated for an authentic freight train sound. Audible up to 1 mile. Hearing protection recommended at close range.
Yes — use the soft volume level indoors. Full power is for outdoor use only. Always wear hearing protection.
With a 2Ah M18™ battery: 500+ short blasts or ~200 sustained 2-second blasts. Easily lasts an entire game day, tailgate, or event. Higher Ah = more blasts. Smart Motor Overheating Protection.
Any Milwaukee® M18™ battery from 2.0Ah to 12.0Ah — including aftermarket M18™-compatible batteries. Already own Milwaukee® power tools? Your existing batteries will work.
Every Quad Series includes 1 (160ft range) wireless remote (433 MHz Encrypted, battery included). Want more range? Add the Long-Range Remote (up to 2,000ft) from the add-ons. You can use multiple remotes at the same time.
Milwaukee® Quad Series horn gun body (4lb), 4× Aluminum Alloy, Powder Coated, 1× wireless remote (160ft). Dimensions: 14" x 6" x 12". Battery and charger sold separately — add from the add-ons or use any M18™ battery you own.
Splash-Resistant — don't submerge it. Store indoors when not in use. The Milwaukee® body shell is impact-resistant polymer, built tough for outdoor use.
Legal to own and use on private property in all 50 states. Road/vehicle use varies by state — check your local laws. Popular for tailgating, boating, off-road, farms, and sporting events.
Every BossHorn comes with a 1-year warranty. If something goes wrong, contact our support team and we'll work with you to resolve the issue. Plus a 90-day money-back guarantee if you're not satisfied.
Boss Series (2026): 150 dB, 1× 300ft remote, 3 volume levels, patent-pending tech. Extreme Series: 150 dB, 2× 200ft remotes, 3 volume levels. Quad Series: 140 dB, 1× 160ft remote, 4 trumpets, great value. Dual Series: 130 dB, 1× 160ft remote, 2 trumpets, compact entry-level option.
Orders placed before 2 PM PST ship the same day. Free standard shipping (1–5 business days). Need it faster? Overnight shipping is available at checkout.
DIY Milwaukee Train Horn
DIY Milwaukee Train Horn
DIY Milwaukee Train Horn