DIRECT FIT TRAIN HORN AND ONBOARD AIR SYSTEMS FOR 2019-2020 GMC SIERRA & CHEVROLET SILVERADO 1500 - Lil’ Bad Ass - Model 220 Train Horn and Onboard Air System - NOB Replacement Parts By choosing the HK4

By choosing the HK4

While optimally optimized as the official companion wiring array for Kleinn train horn systems

Maximize your pneumatic flow velocity and eliminate inline constraints with the premium Kleinn Model VX6003-HK Solenoid Upgrade Kit

} Kleinn Model RSGM7: Quick-Reference A high-performance solution for GM standard key vehicles

INTEGRATED TOGGLE COMMAND & DAY/NIGHT VISIBILITY

DIRECT FIT TRAIN HORN AND ONBOARD AIR SYSTEMS FOR 2019-2020 GMC SIERRA & CHEVROLET SILVERADO 1500 - Lil’ Bad Ass - Model 220 Train Horn and Onboard Air System - NOB Replacement Parts By choosing the HK4New Open Box [PNXXXX NOB] Previously opened boxes that have been reboxed. NOB Stock goods have the same 1 year warranty as all other Kleinn products. 100% Bolt on No drilling or welding required Heavy duty model 6450RC waterproof air compressor Model 220 dual train horns produce 154. 2 decibels 150 PSI operating pressure 1. 5 gallon air tank with Cortec Anti Corrosion interior coating Custom engineered vehicle specific mounting brackets Powers air