The GMHD-OBA premium upgrade features a 100 percent bolt-on onboard air system with direct-fit, vehicle-specific mounting brackets that guarantee a clean under-truck installation with absolutely no cutting, welding, or drilling required. This comprehensive kit includes a high-output model 6450RC 150 PSI waterproof air compressor paired with a heavy-duty, powder-coated steel 3-gallon air tank to ensure rapid recovery times and dependable long-term performance. For maximum utility on the go, the system comes equipped with a remote-mount quick-connect tire inflator complete with a dedicated storage bag, alongside a 160 PSI dashboard panel-mounted gauge and a premium locking air chuck featuring an integrated digital pressure gauge and pressure release valve. This complete system comes packaged with all necessary high-grade air lines, wiring, and vehicle-specific hardware to ensure a seamless, professional-looking installation.

This Part Fits:

Year	Make	Model	Submodel
2015-2019	Chevrolet	Silverado 2500 HD	High Country
2007-2019	Chevrolet	Silverado 2500 HD	LT
2007-2019	Chevrolet	Silverado 2500 HD	LTZ
2007-2019	Chevrolet	Silverado 2500 HD	WT
2015-2019	Chevrolet	Silverado 3500 HD	High Country
2007-2019	Chevrolet	Silverado 3500 HD	LT
2007-2019	Chevrolet	Silverado 3500 HD	LTZ
2007-2019	Chevrolet	Silverado 3500 HD	WT
2015-2019	GMC	Sierra 2500 HD	Base
2011-2019	GMC	Sierra 2500 HD	Denali
2007-2019	GMC	Sierra 2500 HD	SLE
2007-2019	GMC	Sierra 2500 HD	SLT
2007-2014	GMC	Sierra 2500 HD	WT
2020	GMC	Sierra 3500 HD	AT4
2015-2020	GMC	Sierra 3500 HD	Base
2011-2020	GMC	Sierra 3500 HD	Denali
2007-2020	GMC	Sierra 3500 HD	SLE
2007-2020	GMC	Sierra 3500 HD	SLT
2007-2014	GMC	Sierra 3500 HD	WT