This is the second Viair tank and pump I have bought. The first still works in my 2008 Silverado HD3500. I also installed a truck horn in case you tow it and need more than the stock horn! When I towed a 5 wheel RV I wanted to be sure I had air and it has paid off multiple times. There is also a 20 ton air jack for the axle and it works great. I now have a 26ft Class C and just installed this unit under the frame and it is now ready to jack up and air as needed. Great product and the package includes all the pressure switches as well as the power button and gauge on the dash. Highly recommended.