Air Helper Spring Kit No Drill, Bolt On. Will Not Fit Cab & Chassis Models. Direct Bolt On Bag Brackets Replaces Factory Bumpstops. Provides Up To 5000lbs Of Leveling Capacity (never exceed more than truck manufacturers maximum load recommendation) Kit Includes: 2 – Standard 2500lb Air Springs Direct Bolt On Air Bag Mounting Brackets With Hardware TowMaxxx Air Compressor 1/4″ Stainless Steel Braided Leader Hose 1/4″NPT Check Valve Premium 40 Amp Relay Relay Harness 15 Foot Roll of 1/4″ Air Hose 4 – Compressor Mounting Bolts Compressor Filter Relocate Kit Air Hose Cutter 6ml Bottle Of Medium Strength Threadlocker 1/4″NPT Brass Air Valve With Fittings White Face, 200 PSI Air Gauge with Mounting Bracket 3 Position Fill/Off/Dump Rocker Switch LED Light Bulb 1/4″NPT Female to 1/4″ Hose Fitting 1/4″ Hose Tee Fitting 1/4″ Hose to 1/4″NPT To 1/4″ Hose Tee Fitting 1/8″NPT Female to 1/4″ Hose Barbed Fitting.