TRAIN HORNS — 2007.5–2012 DODGE RAM 6.7L CUMMINS

Make your 6.7L Cummins impossible to ignore. This collection focuses on complete train horn kits, horns for existing onboard air, and the compressors/tanks/switches you need for a clean and reliable install. Every link points to an in-stock CPP Diesel product for fast checkout.

Complete Train Horn Kits (Horn + Onboard Air)

• Pacbrake HP10314 Premium Triple Train Horn (with HP10163 Onboard Air) — maximum volume with a compact tank/compressor combo.
• Pacbrake HP10237 Trio Horn + Onboard Air (Matte Black) — bold look and big sound.
• Pacbrake HP10238 Large Single Horn + Onboard Air — classic train horn tone with a simple layout.

Horns (Use with Existing Onboard Air)

• Pacbrake HP10235 Trio Horn (horn only) — multi-trumpet blast when you already have air.
• Pacbrake HP10234 Large Single Horn (horn only) — deep tone and durable build.
• Kleinn HK6 Chrome Triple Train Horn — proven triple-trumpet kit (use with onboard air).
• Kleinn 6126 Dual Direct Drive Horn — compact upgrade that doesn’t require a separate tank.

Onboard Air Kits & Tanks

• Pacbrake HP10163 Onboard Air Kit — 0.5 Gallon — great for horns and tire inflation.
• Pacbrake HP10164-AL Onboard Air Kit — 2.5 Gallon Aluminum — more reserve for repeated horn blasts.
• Pacbrake HP10628 HP625 Compressor Kit — heavy-duty, 100% duty-cycle compressor.
• Air Tanks:
  • HP10053 — 0.5 Gallon Carbon Steel Premium Tank
  • HP10263 / HP10264 / HP10265 — 0.5 / 2.5 / 5.0 Gallon Aluminum Tank Kits

Switches & Accessories

• Kleinn 333 Sniper Remote Horn Button — wireless activation for fun/demo.
• Kleinn 328 Waterproof Push Button — rugged, sealed trigger.
• Kleinn 320 “Terminator” Flush Mount Button — clean, low-profile install.

Related 07.5–12 Categories

• 07.5–12 6.7L Cummins — Main
• Intercooler / Boost Tubes
• Exterior Accessories
• On-Board Air Systems

Frequently Asked Questions

Do I need onboard air for a true train horn?

Yes. Multi-trumpet “train horn” setups require a compressor and tank. Choose a kit with onboard air (e.g., HP10314 or HP10237) or pair a horn-only kit with HP10163 or HP10164-AL.

How big of a tank should I run?

For occasional blasts, 0.5 gal works. For repeated use or longer blasts, step up to 2.5 gal or add separate tanks like HP10053 (0.5 gal).

What’s the loudest option?

Triple-horn kits deliver the biggest presence. See HP10314 or Kleinn HK6 (requires onboard air).

Is this legal on public roads?

Regulations vary by location and noise ordinances. Use responsibly and check local laws before using train horns on public roads.