2019 Ford F-250 with HornBlasters Mini Outlaw Train Horn Kit
2019 Ford F-250 Super Duty front three-quarter view
Mini Outlaw Train Horn Kit installed under a 2019 Ford F-250
Mini Outlaw horns mounted behind the rear axle on a 2019 Ford F-250
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Featured Install

Mini Outlaw Train Horn Kit

2019 Ford F-250

Sound Sample
0:00 0:00
Owner Hunter H.
Year 2019
Vehicle Ford F-250
3-chime metal Compact kit Behind the axle Onboard air 120 PSI 2–3 sec honk
2019 Ford F-250

Mini Outlaw.
Behind the axle.
Ready to roar.

Mini Outlaw Train Horn Kit

Hunter H.’s 2019 Ford F-250 runs the HornBlasters Mini Outlaw Train Horn Kit underneath the truck, tucked behind the rear axle. Compact three-chime metal horns, onboard air, and a clean mount that stays out of the way until he needs serious noise.

The Mini Outlaw is built for tight installs that still want a real locomotive tone. On this Super Duty, the kit sits low and functional — ready whenever the trail or highway calls for it.

  • Mini Outlaw train horn: three-chime metal horn, deep locomotive tone
  • Compact air source: M3 3-liter compressor and tank combo
  • 2–3 second honk: 120 PSI operating pressure, ~35-second refill
  • Behind-the-axle mount: clean underbody install on this F-250
  • Stealth Black finish: blacked-out horns that disappear under the truck
  • Complete kit: valve, airline, wiring, switch, hardware, and earplugs
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The kit

Specifications

Mini Outlaw Train Horn Kit This F-250 page lists the HK-MC3B-M3 kit: a Mini Outlaw three-chime metal horn with the M3 3-liter compressor and tank combo.
120PSI Operating pressure
3chimes Mini Outlaw metal horn
2–3sec Continuous honk
3L M3 air source
Kit
Part number HK-MC3B-M3
Operating pressure 120 PSI
Restart pressure 90 PSI
Voltage 12-Volt DC
Max amp draw 18 A
Honk time 2–3 seconds
Horn
Horn Mini Outlaw train horn
Finish Stealth Black
Dimensions 16.5″ L × 14.5″ W × 11″ H
Weight 10.9 lb (4.95 kg)
Air source
Unit M3 3-liter compressor and tank combo
Unit size 16.535″ × 4.921″ × 7.086″
Drain port 1/8″ NPT
0 to 120 PSI 2 min (±10 sec)
90 to 120 PSI 35 sec (±5 sec)
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