Kleinn Horns GM1500-734 Complete Bolt-On Train Horn & Onboard Air System

The Kleinn Horns GM1500-734 is a complete bolt-on train horn and onboard air (OBA) system engineered specifically for GM 1500 series trucks. This comprehensive kit combines the powerful Model 730 train horn with a fully integrated air management system, delivering authentic train horn sound and versatile compressed air functionality without any drilling required.

Complete Onboard Air System:

• High-output waterproof air compressor for reliable all-weather performance
• 3-gallon air tank provides ample air capacity for extended horn blasts and air tool use
• Custom-engineered mounting bracket designed and manufactured in the USA
• 100% bolt-on installation using basic hand tools—no drilling required
• Quick-connect tire inflator with remote mount and storage bag included

Versatile Functionality:

• Powers the Model 730 train horn for attention-commanding sound
• Capable of inflating large truck and off-road tires
• Can operate air suspension and air bag systems
• Sufficient capacity to run small pneumatic air tools
• Upgradeable with P/N 6890 Ultra Blastmaster Valve for increased horn volume

This all-in-one system arrives with every component needed for a professional installation. The vehicle-specific design ensures proper fitment and seamless integration with your GM 1500 truck, while the waterproof compressor and durable construction provide long-lasting reliability in demanding conditions.