GG Grand General Train Horn Kit 69991 Chrome Triple Brass Trumpets 12/24V Heavy-Duty 140+dB

GG Grand General 69991 is a heavy‑duty chrome train horn kit with three chromed brass trumpets and a multi‑voltage solenoid for authentic, high‑impact sound.

Built for drivers who want a true train‑horn tone, the GG Grand General 69991 combines chromed brass trumpets, stainless steel mounting hardware, and a robust electric solenoid so it performs reliably on 12V and 24V electrical systems. The trumpets are finished to a show‑quality chrome standard and engineered to produce the deep, far‑carrying notes associated with full‑size rail horns. This kit requires a separate air tank and 1/4" ID hose for installation and can be paired with optional floor stands or valve lever sets for different mounting styles.

How loud and powerful is this horn?

This train horn delivers an authentic, high‑decibel signal designed to be heard at distance, rated at 140+ decibels under proper air pressure. It performs across a wide operating range, producing strong low‑frequency tones when supplied with adequate PSI from a compatible air tank.

• Rated sound level: 140+ dB (dependent on installation and air pressure)
• Operating pressure: effective from ~70 PSI up to 140+ PSI
• Three brass trumpets tuned for deep, resonant notes
• Chrome finish for show‑quality appearance and corrosion resistance

Will it work with my vehicle’s electrical system?

The included electric solenoid is multi‑voltage and supports both 12V and 24V systems, so it’s compatible with most cars, trucks, RVs, and commercial vehicles. For best performance, wire the solenoid according to the horn kit instructions and use a proper relay and fuse sized for your vehicle.

• Multi‑voltage electric solenoid included (12V/24V compatible)
• Requires proper wiring, relay, and fuse for safe operation
• Heavy‑duty stainless steel “L” bracket included for secure mounting
• Optional heavy duty solenoid (GG 69993) available for upgrade

What do I need to install and maintain it?

The 69991 kit supplies the trumpets and solenoid plus a stainless steel mounting bracket, but you will need an air tank and 1/4" inner diameter hose to complete installation. Routine checks of fittings, hoses, and tank pressure will keep the system reliable and loud when needed.

• Required but not included: air tank and 1/4" ID hose
• Mounting hardware: heavy duty stainless steel “L” bracket included
• Optional mounting accessories: floor mount stands and valve lever sets (4", 7", 11")
• Maintenance: inspect hoses and fittings, verify tank pressure and solenoid function

How can I customize mounting or control options?

Grand General offers accessory options to tailor how the horn is mounted and operated. Choose from floor mount stands and manual valve lever sets in multiple sizes or upgrade to alternative solenoid models for different actuation needs.

• Floor mount stands and air valve lever sets: GG 69977 (4"), GG 69979 (7"), GG 69982 (11")
• Optional heavy duty electric solenoid: GG 69993
• Mounting choices let you install under vehicle, in engine bay, or in cargo areas
• Accessories sold separately to fit specific vehicle layouts

Who is this for: The GG Grand General 69991 appeals to automotive enthusiasts, truck and RV owners, and fleets seeking a durable, show‑quality train horn with authentic tone and multi‑voltage compatibility. If you want a loud, attention‑getting horn with chrome‑finished brass trumpets and the flexibility to add tanks or mounting accessories, this heavy‑duty kit is built to deliver.